Results for "D. Bettoni"

total 119491took 0.19s
Structural and dynamical modeling of WINGS clusters. II. The orbital anisotropies of elliptical, spiral and lenticular galaxiesJan 18 2019The orbital shapes of galaxies is a probe of their formation and evolution. The Bayesian MAMPOSSt mass/orbit modeling algorithm is used to jointly fit the distribution of elliptical (E), spiral/Irr (S), and S0 galaxies in projected phase space, on 3 pseudo-clusters ... More
Quintessential Affleck-Dine baryogenesis with non-minimal couplingsMay 07 2018Jul 27 2018We present a novel Affleck-Dine scenario for the generation of the observed baryon asymmetry of the Universe based on the non-trivial interplay between quintessential inflationary models containing a kinetic dominated post-inflationary era and a non-minimally ... More
The visible environment of galaxies with counterrotationMay 16 2001In this paper we present a statistical study of the environments of 49 galaxies in which there is gas- or stellar- counterrotation. The number of possible companions in the field (to apparent magnitude 22), their size and concentration were considered. ... More
A multi--wavelength study of the IRAS Deep Survey galaxy sample II. The far-IR propertiesSep 20 2006We derive the 60\mu local LF to sensitivity levels 10 times deeper than before, to investigate evolutionary effects up to a redshift of 0.37, and, using the 60/15\mu bi-variate method, the poorly known 15\mu local LF of galaxies. We exploited our ISOCAM ... More
The gas content of peculiar galaxies: strongly interacting systemsMay 06 2004A study of the gas content in 1038 interacting galaxies, essentially selected from Arp, Arp and Madore, Vorontsov-Velyaminov catalogues and some of the published literature, is presented here. The data on the interstellar medium have been extracted from ... More
The visible environment of gas-accreting galaxiesSep 30 1999We studied the environment of a sample of galaxies in which the presence of polar rings or the presence of gas- and stars- counterrotation is observed. These galaxies are believed to have accreted this material, now in peculiar motion, from their environment. ... More
Superdense galaxies and the mass-size relation at low redshiftNov 05 2012We search for massive and compact galaxies (superdense galaxies, hereafter SDGs) at z=0.03-0.11 in the Padova-Millennium Galaxy and Group Catalogue, a spectroscopically complete sample representative of the local Universe general field population. We ... More
A new catalogue of ISM content of normal galaxiesApr 02 2003Apr 04 2003We have compiled a catalogue of the gas content for a sample of 1916 galaxies, considered to be a fair representation of `normality'. The definition of 'normal' galaxy adopted in this work implies that we have purposely excluded from the catalogue galaxies ... More
A multiwavelength study of the IRAS Deep Survey galaxy sample III. Spectral classification and dynamical propertiesNov 29 2011The infrared deep sample (IDS), in the north ecliptical polar region (NEPR), is the first complete, far--IR selected sample, on which numerous studies of galaxy evolution are based. Here we present and analyze the spectral classification of several galaxies ... More
Gravitational waves from global cosmic strings in quintessential inflationOct 25 2018Feb 15 2019The combination of non-minimal couplings to gravity with the post-inflationary kinetic-dominated era typically appearing in quintessential inflation scenarios may lead to the spontaneous symmetry breaking of internal symmetries and its eventual restoration ... More
Catching Spiral - S0 transition in groups. Insights from SPH simulations with chemo-photometric implementationJun 04 2013We are investigating the co-evolution of galaxies within groups combining multi-wavelength photometric and 2D kinematical observations. Here we focus on S0s showing star formation in ring/arm-like structures. We use smooth particle hydrodynamical simulations ... More
The innermost region of the NGC 1023 Group: Insight into its evolutionApr 16 2012The NGC 1023 group is one of the most studied nearby groups. We want to give an insight into the evolution of its innermost region by means of ultraviolet observations and proper models. We used the FUV and NUV GALEX archival data as well as a large set ... More
Molecular gas and star formation in M81Jun 26 2007We present IRAM 30m observations of the central 1.6 kpc of the spiral M81 galaxy. The molecular gas appears weak and with an unusual excitation physics. We discuss a possible link between low CO emission and weak FUV surface brightness.
The gas content of peculiar galaxies: counterrotators and polar ringsMay 24 2001This paper studies the global ISM content in a sample of 104 accreting galaxies, including counterrotators and polar rings, which spans the entire Hubble sequence. The molecular, atomic and hot gas content of accretors is compared to a newly compiled ... More
The peculiar galaxy IC 1182: An ongoing merger?Feb 10 2004Broad and narrow band images and long slit spectroscopy of IC1182 are presented. The broad band images reveal a distorted morphology with a large, heavily obscured disk-like structure and several knots in the central region. Galactic material, some of ... More
The black hole mass of low redshift radiogalaxiesDec 06 2002We make use of two empirical relations between the black hole mass and the global properties (bulge luminosity and stellar velocity dispersion) of nearby elliptical galaxies, to infer the mass of the central black hole (M_BH) in low redshift radiogalaxies. ... More
Molecular clouds in the center of M81Jul 28 2007We investigate the molecular gas content and the excitation and fragmentation properties in the central region of the spiral galaxy Messier 81 in both the ^{12}CO(1-0) and ^{12}CO(2-1) transitions. We have recently observed the two transitions of CO in ... More
Low redshift quasars in the SDSS Stripe 82. The local environmentsApr 07 2014We study the environments of low redshift (z < 0.5) quasars based on a large and homogeneous dataset from the Stripe 82 region of the Sloan Digital Sky Survey (SDSS). We have compared the < 1 Mpc scale envi- ronments of 302 quasars that were resolved ... More
Isolated galaxies: residual of primordial building blocks?May 03 2006May 05 2006CONTEXT.The mass assembly is believed to be the dominant process of early galaxy formation. This mechanism of galaxy building can proceed either by repeated major mergers with other systems, or by means of accretion of matter from the surrounding regions. ... More
GASP I: Gas stripping phenomena in galaxies with MUSEApr 17 2017Apr 26 2017GASP (GAs Stripping Phenomena in galaxies with MUSE) is a new integral-field spectroscopic survey with MUSE at the VLT aiming at studying gas removal processes in galaxies. We present an overview of the survey and show a first example of a galaxy undergoing ... More
Relations between ISM tracers in galaxiesSep 26 2006We study the relations existing between fluxes emitted at CO(1-0) line, 60 and 100 micron wavelengths, B and soft X-ray wavebands for galaxies of all morphological types. The large set of data that we created allows to revisit some of known relations ... More
The scaling relation of early-type galaxies in clusters. II: Spectroscopic data for galaxies in eight nearby clustersFeb 27 2006AIMS: We present in this work low and intermediate resolution spectroscopic data collected for 152 early type galaxies in 8 nearby clusters with z $\leq$ 0.10. METHODS: We use low resolution data to produce the redshift and the K-correction for every ... More
UGC 7639: a Dwarf Galaxy in the Canes Venatici I CloudJul 08 2015We want to get insight into the nature, i.e. the formation mechanism and the evolution, of UGC 7639, a dwarf galaxy in the Canes Venatici I Cloud (CVnIC). We used archival GALEX (FUV and NUV) and SDSS images, as well as Hyperleda and NED databases, to ... More
Study of ISM tracers in galaxiesDec 05 2006We collected data for two samples of normal and interacting galaxies for a total of 2953 galaxies having fluxes in one or more of the following wavebands: FIR, 21 cm line, CO(1-0) lines and soft X-ray. The large set of data obtained allowed us to revisit ... More
The PANDA Experiment at FAIROct 30 2007The physics program of the future FAIR facility covers a wide range of topics that address central issues of strong interactions and QCD. The antiproton beam of unprecedented quality in the momentum range from 1 GeV/c to 15 GeV/c will allow the PANDA ... More
Disformal invariance of second order scalar-tensor theoriesMay 12 2014The Horndeski action is the most general one involving a metric and a scalar field that leads to second-order field equations in four dimensions. Being the natural extension of the well-known scalar-tensor theories, its structure and properties are worth ... More
The scaling relations of early--type galaxies in clusters I. Surface photometry in seven nearby clustersMar 01 2002This is the first paper of a series investigating the scaling relations of early-type galaxies in clusters. Here we illustrate the multi-band imagery and the image reduction and calibration procedures relative to the whole sample of 22 clusters at 0.05 ... More
Cluster formation in the LMCOct 02 2002In this work we present preliminary results concerning the properties of about 50 clusters and associations located in a densely populated region at the Southern edge of the supershell LMC~4. The ages of the clusters and associations are derived. The ... More
Rotation curves and metallicity gradients from HII regions in spiral galaxiesJul 01 2002In this paper we study long slit spectra in the region of H$\alpha$ emission line of a sample of 111 spiral galaxies with recognizable and well defined spiral morphology and with a well determined environmental status, ranging from isolation to non-disruptive ... More
NGC 3934: a shell galaxy in a compact galaxy environmentAug 30 2011We investigate the NGC 3933 poor galaxy association, that contains NGC 3934, which is classified as a polar-ring galaxy. The multi-band photometric analysis of NGC 3934 allows us to investigate the nature of this galaxy and to re-define the NGC 3933 group ... More
The GALEX UV emission in shell galaxiesJan 15 2008Shell galaxies are widely considered the debris of recent accretion/merging episodes. Their high frequency in low density environment suggests that such episodes could be among the driver of the early-type galaxy secular evolution. We present far and ... More
The Fundamental Plane of Radio GalaxiesOct 18 2001Feb 26 2002We collected photometrical and dynamical data for 73 low red-shift (z<0.2) Radio Galaxies (LzRG) in order to study their Fundamental Plane (FP). For 22 sources we also present new velocity dispersion data, that complement the photometric data given in ... More
The evolution of the galactic morphological types in clustersMay 08 2000The morphological types of galaxies in nine clusters in the redshift range 0.1<z<0.25 are derived from very good seeing images taken at the NOT and the La Silla Danish telescopes. With the purpose of investigating the evolution of the fraction of different ... More
Low redshift quasars in the SDSS Stripe 82. Host galaxy colors and close environmentSep 25 2015We present a photometrical and morphological multicolor study of the properties of low redshift (z<0.3) quasar hosts based on a large and homogeneous dataset of quasars derived from the Sloan Digital Sky Survey (DR7). We used quasars that were imaged ... More
Galaxy Evolution in Local Group Analogs. I. A GALEX study of nearby groupsDec 21 2009Understanding the astrophysical processes acting within galaxy groups and their effects on the evolution of the galaxy population is one of the crucial topic of modern cosmology, as almost 60% of galaxies in the Local Universe are found in groups. We ... More
The core fundamental plane of B2 radio galaxiesOct 05 2009The photometric, structural and kinematical properties of the centers of elliptical galaxies, harbor important information of the formation history of the galaxies. In the case of non active elliptical galaxies these properties are linked in a way that ... More
New photometric investigation of the double ringed galaxy ESO474-G26. Unveiling the formation scenarioJul 27 2012We present a detailed photometric study of the peculiar double ringed galaxy ESO474-G26. Near-Infrared (NIR) and optical data have been used, with the main goal to constrain the formation history of ESO474-G26. NIR photometry is fundamental in this kind ... More
The bright galaxy population of five medium redshift clusters. II. Quantitative Galaxy MorphologyJul 02 2009Aims: Following the study already presented in our previous paper, based on the Nordic Optical Telescope (NOT) sample, which consists of five clusters of galaxies within the redshift range 0.18 $\leq$ z $\leq$ 0.25, imaged in the central 0.5-2 Mpc in ... More
The impact of encounters on the members of Local Group Analogs. A view from GALEXJan 21 2008The bright galaxy population of the Local Group Analog (LGA) LGG 225 has been imaged with the Galaxy Evolution Explorer (GALEX) through its Far- and Near-UV wavebands. A significant fraction of the group members appear to underwent recent/on-going interaction ... More
Revisiting the formation History of the minor-axis dust lane galaxy NGC1947Nov 11 2008In this paper we present a detailed study of the peculiar early-type galaxy NGC1947. The main goal of this work is to constrain the dynamical status and the formation history of NGC1947 by comparing the observed properties with the predictions derived ... More
WINGS: a Wide-field Imaging Nearby Galaxy clusters SurveyOct 22 2001We present a two-band, wide-field imaging survey of an X-ray selected sample of 78 clusters in the redshift range z=0.03-0.07. The aim of the project is to provide the astronomical community with a complete set of homogeneous, CCD-based, surface photometry ... More
Properties of Isolated Disk GalaxiesMar 05 2004A sample of isolated galaxies (IsG), selected by the ratio, $f$, between inner and tidal forces acting upon a galaxy, is presented. The analysis of the Coma cluster lead us to adopt the criterion $f\leq -4.5$ for IsG. The candidates are from the CfA catalog ... More
Low redshift quasars in the SDSS Stripe 82. The host galaxiesFeb 18 2014We present a photometrical and morphological study of the properties of low redshift (z < 0.5) quasars based on a large and homogeneous dataset of objects derived from the Sloan Digital Sky Survey (DR7). This study over number by a factor about 5 any ... More
Are truncated stellar disks linked to the molecular gas density?Feb 01 2007We know that the slope of the radial, stellar light distribution in galaxies is well described by an exponential decline and this distribution is often truncated at a break radius ($R_{br}$). We don't have a clear understanding for the origin of these ... More
Experimental proposal to study the excess at Mjj=150 GeV presented by CDF at FermilabMay 18 2011We propose an experimental test to verify the unexpected excess at Mjj=150GeV presented by the CDF collaboration in the invariant mass distribution of jet pairs produced in association with a W boson. We propose a formation experiment in which the energy ... More
Evolution of BCGs structural parameters in the last $\sim$6 Gyr: feedback processes versus merger eventsJul 19 2010Oct 18 2010We present results on the evolution in the last 6 Gyr of the structural parameters of two samples of brightest cluster galaxies (BCGs). The nearby sample of BCGs consist on 69 galaxies from the WINGS survey spanning a redshift range of 0.04$<$z$<$0.07. ... More
A new Einstein Cross gravitational lens of a Lyman-break galaxyFeb 28 2019We report the study of an "Einstein Cross" configuration first identified in a set of HST images by Cerny et al. 2018. Deep spectroscopic observations obtained at the Spanish 10.4m GTC telescope, allowed us to demonstrate the lens nature of the system, ... More
The WINGS Survey: a progress reportOct 08 2002A two-band (B and V) wide-field imaging survey of a complete, all-sky X-ray selected sample of 78 clusters in the redshift range z=0.04-0.07 is presented. The aim of this survey is to provide the astronomical community with a complete set of homogeneous, ... More
Characterization of Omega-WINGS galaxy clusters. I. Stellar light and mass profilesSep 26 2017Nov 14 2017Galaxy clusters are the largest virialized structures in the observable Universe. The knowledge of their properties provides many useful astrophysical and cosmological information. Our aim is to derive the luminosity and stellar mass profiles of the nearby ... More
Shaken, not stirred: kinetic mixing in scalar-tensor theories of gravityFeb 09 2015Apr 28 2015Kinetic mixing between the metric and scalar degrees of freedom is an essential ingredient in contemporary scalar-tensor theories. This often makes hard to understand their physical content, especially when derivative mixing is present, as it is the case ... More
Disformal invariance of second order tensor-scalar theories: framing the Horndeski actionJun 28 2013Oct 21 2013The Horndeski action is the most general one involving a metric and a scalar field that leads to second order field equations in four dimensions. Being the natural extension of the well known Scalar-Tensor theories, its structure and properties are worth ... More
Dynamics of non-minimally coupled perfect fluidsFeb 23 2015Oct 19 2015We present a general formulation of the theory for a non-minimally coupled perfect fluid in which both conformal and disformal couplings are present. We discuss how such non-minimal coupling is compatible with the assumptions of a perfect fluid and derive ... More
The GALEX UV emission in shell galaxies: tracing galaxy "rejuvenation" episodesJul 19 2007We present the GALEX far FUV and near NUV ultraviolet imaging of three nearby shell galaxies, namely NGC 2865, NGC 5018 and NGC 7135. The system of shells and fine structures visible in the optical is detected in the NUV image of NGC 2865 and in both ... More
The Fundamental Plane of Early Type Galaxies in Nearby Clusters from the WINGS DatabaseApr 11 2008Jun 27 2008By exploting the data of three large surveys (WINGS, NFPS and SDSS), we present here a comparative analysis of the Fundamental Plane (FP hereafter) of the early-type galaxies (ETGs) belonging to 59 galaxy clusters in the redshift range $0.04<z<0.07$. ... More
Da$Φ$ne developments for the KLOE-2 experimental runJun 08 2010Recently the peak luminosity achieved on the DA{\Phi}NE collider has been improved by almost a factor three by implementing a novel collision scheme based on large Piwinski angle and Crab-Waist. This encouraging result opened new perspectives for physics ... More
WINGS: a WIde-field Nearby Galaxy-cluster Survey. I - Optical imagingJul 11 2005Oct 05 2005This is the first paper of a series that will present data and scientific results from the WINGS project, a wide-field, multiwavelength imaging and spectroscopic survey of galaxies in 77 nearby clusters. The sample was extracted from the ROSAT catalogs ... More
Jellyfish galaxy candidates at low redshiftApr 27 2015Oct 03 2015Galaxies that are being stripped of their gas can sometimes be recognized from their optical appearance. Extreme examples of stripped galaxies are the so-called ``jellyfish galaxies'', that exhibit tentacles of debris material with a characteristic jellyfish ... More
Scaling relations of cluster elliptical galaxies at z~1.3. Distinguishing luminosity and structural evolutionJan 22 2014Jun 05 2014[Abridged] We studied the size-surface brightness and the size-mass relations of a sample of 16 cluster elliptical galaxies in the mass range 10^{10}-2x10^{11} M_sun which were morphologically selected in the cluster RDCS J0848+4453 at z=1.27. Our aim ... More
GASP. X: APEX detection of molecular gas in the tails and in the disks of ram-pressure stripped galaxiesMar 16 2018Jellyfish galaxies in clusters are key tools to understand environmental processes at work in dense environments. The advent of Integral Field Spectroscopy has recently allowed to study a significant sample of stripped galaxies in the cluster environment ... More
GASP. V. Ram-pressure stripping of a ring Hoag's-like galaxy in a massive clusterFeb 20 2018Through an ongoing MUSE program dedicated to study gas removal processes in galaxies (GAs Stripping Phenomena in galaxies with MUSE, GASP), we have obtained deep and wide integral field spectroscopy of the galaxy JO171. This galaxy resembles the Hoag's ... More
Galaxy Luminosity Functions in WINGS clustersJun 03 2015Using V band photometry of the WINGS survey, we derive galaxy luminosity functions (LF) in nearby clusters. This sample is complete down to Mv=-15.15, and it is homogeneous, thus allowing the study of an unbiased sample of clusters with different characteristics. ... More
A spectrophotometric model applied to cluster galaxies: the WINGS datasetMay 10 2007[Abridged] The WIde-field Nearby Galaxy-cluster Survey (WINGS) is a project aiming at the study of the galaxy populations in clusters in the local universe (0.04<z<0.07) and the influence of environment on the physical properties of galaxies. This survey ... More
Emission Line Galaxies and Active Galactic Nuclei in WINGS clustersAug 29 2016We present the analysis of the emission line galaxies members of 46 low redshift (0.04 < z < 0.07) clusters observed by WINGS (WIde-field Nearby Galaxy cluster Survey, Fasano et al. 2006). Emission line galaxies were identified following criteria that ... More
OmegaWINGS: The first complete census of post starburst galaxies in clusters in the local universeMar 09 2017Galaxies that abruptly interrupt their star formation in < 1.5 Gyr present recognizable features in their spectra (no emission and Hd in absorption) and are called post starburst (PSB) galaxies. By studying their stellar population properties and their ... More
GALEX UV properties of the polar ring galaxy MCG-05-07-001 and the shell galaxies NGC 1210 and NGC 5329Sep 22 2009Dec 21 2009Systems of shells and polar rings in early-type galaxies are considered "bona fide" tracers of mass accretion and/or mergers. Their high frequency in low density environments suggests that such episodes could drive the evolution of at least a fraction ... More
GASP. VII. Gas accretion onto an isolated galaxyFeb 20 2018Theoretically, inflowing filaments of gas are one of the main causes of growth for a galaxy. Nonetheless, observationally, probing ongoing gas accretion is challenging. As part of the Gas Stripping Phenomena in galaxies with MUSE (GASP) program, we present ... More
The evolution of early-type galaxies in clusters from z~ 0.8 to z~ 0: the ellipticity distribution and the morphological mixDec 10 2010Dec 13 2010We present the ellipticity distribution and its evolution for early-type galaxies in clusters from z~0.8 to z~0, based on the WIde-field Nearby Galaxy-cluster Survey (WINGS)(0.04<z<0.07), and the ESO Distant Cluster Survey (EDisCS)(0.4<z<0.8). We first ... More
Galaxy evolution in nearby groups. II. Galaxy evolution in nearby loose groups. II. Photometric and kinematic characterization of USGC U268 and USGC U376 group members in the Leo cloudSep 19 2012We present the photometric and kinematic characterization of two groups, USGC U268 and USGC U376 located in different regions of the Leo cloud. U268, composed of 10 catalogued members and 11 new added members, has a small fraction (~24%) of early-type ... More
A fast and parametric digitization for triple-GEM detectorsApr 12 2019Triple-GEM detectors are a well known technology in high energy physics. In order to have a complete understanding of their behavior, in parallel with on beam testing, a Monte Carlo code has to be developed to simulate their response to the passage of ... More
Structural and dynamical modeling of WINGS clusters. I. The distribution of cluster galaxies of different morphological classes within regular and irregular clustersAug 28 2017[Abridged] We use the WINGS database to select a sample of 67 nearby galaxy clusters with at least 30 spectroscopic members each. 53 of these clusters do not show evidence of substructures in phase-space, while 14 do. We estimate the virial radii and ... More
Slow quenching of star formation in OMEGAWINGS clusters: galaxies in transition in the local universeDec 14 2015Dec 17 2015The star formation quenching depends on environment, but a full understanding of what mechanisms drive it is still missing. Exploiting a sample of galaxies with masses $M_\ast>10^{9.8}M_\odot$, drawn from the WIde-field Nearby Galaxy-cluster Survey (WINGS) ... More
Enhanced star formation in both disks and ram pressure stripped tails of GASP jellyfish galaxiesOct 11 2018Exploiting the data from the GAs Stripping Phenomena in galaxies with MUSE (GASP) program, we compare the integrated Star Formation Rate- Mass relation (SFR-M_ast) relation of 42 cluster galaxies undergoing ram pressure stripping ("stripping galaxies") ... More
The hybrid solution for the Fundamental PlaneJul 09 2013By exploiting the database of early-type galaxies (ETGs) members of the WINGS survey of nearby clusters, we address here the long debated question of the origin and shape of the Fundamental Plane (FP). Our data suggest that different physical mechanisms ... More
The HST Large Programme on NGC 6752. I. Serendipitous discovery of a dwarf Galaxy in backgroundFeb 01 2019As part of a large Hubble Space Telescope investigation aiming at reaching the faintest stars in the Galactic globular cluster NGC 6752, an ACS/WFC field was the subject of deep optical observations reaching magnitudes as faint as V~30. In this field ... More
U-band photometry of 17 WINGS clustersNov 29 2013This paper belongs to a series presenting the WIde Field Nearby Galaxy-cluster Survey (WINGS). The WINGS project has collected wide-field, optical (B,V) and near-infrared (J,K) imaging, as well as medium resolution spectroscopy of galaxies in a sample ... More
WINGS: a WIde-field nearby Galaxy-cluster survey III. Deep near-infrared photometry of 28 nearby clustersFeb 05 2009Aug 11 2009Context. This is the third paper of a series devoted to the WIde-field Nearby Galaxy-cluster Survey (WINGS).WINGS is a long term project aimed at gathering wide-field, multiband imaging and spectroscopy of galaxies in a complete sample of 77 X-ray selected ... More
WINGS-SPE II: A catalog of stellar ages and star formation histories, stellar masses and dust extinction values for local clusters galaxiesOct 11 2010The WIde-field Nearby Galaxy clusters Survey (WINGS) is a project whose primary goal is to study the galaxy populations in clusters in the local universe (z<0.07) and of the influence of environment on their stellar populations. This survey has provided ... More
Superdense Massive Galaxies in Wings Local ClustersJul 14 2009Jan 19 2010Massive quiescent galaxies at z>1 have been found to have small physical sizes, hence to be superdense. Several mechanisms, including minor mergers, have been proposed for increasing galaxy sizes from high- to low-z. We search for superdense massive galaxies ... More
Morphology of galaxies in the WINGS clustersSep 09 2011We present the morphological catalog of galaxies in nearby clusters of the WINGS survey (Fasano et al. 2006). The catalog contains a total number of 39923 galaxies, for which we provide the automatic estimates of the morphological type applying the purposely ... More
GASP II. A MUSE view of extreme ram-pressure stripping along the line of sight: kinematics of the jellyfish galaxy JO201Apr 17 2017This paper presents a spatially-resolved kinematic study of the jellyfish galaxy JO201, one of the most spectacular cases of ram-pressure stripping (RPS) in the GASP (GAs Stripping Phenomena in Galaxies with MUSE) survey. By studying the environment of ... More
The red-sequence of 72 WINGS local galaxy clustersSep 19 2011We study the color-magnitude red sequence and blue fraction of 72 X-ray selected galaxy clusters at z=0.04-0.07 from the WINGS survey, searching for correlations between the characteristics of the red sequence and the environment. We consider the slope ... More
WINGS Data Release: a database of galaxies in nearby clustersMar 06 2014[Abridged] To effectively investigate galaxy formation and evolution, it is of paramount importance to exploit homogeneous data for large samples of galaxies in different environments. The WINGS (WIde-field Nearby Galaxy-cluster Survey) project aim is ... More
The Shapes of BCGs and normal Ellipticals in Nearby ClustersJan 15 2010Jan 22 2010We compare the apparent axial ratio distributions of Brightest Cluster Galaxies (BCGs) and normal ellipticals (Es) in our sample of 75 galaxy clusters from the WINGS survey. Most BCGs in our clusters (69%) are classified as cD galaxies. The sample of ... More
WINGS: A WIde-field Nearby Galaxy-cluster Survey. II. Deep optical photometry of 77 nearby clustersFeb 04 2009Feb 09 2009(Abridged) Context. This is the second paper of a series devoted to the WIde Field Nearby Galaxy-cluster Survey (WINGS). WINGS is a long term project which is gathering wide-field, multi-band imaging and spectroscopy of galaxies in a complete sample of ... More
Substructures in WINGS clustersApr 04 2007We search for and characterize substructures in the projected distribution of galaxies observed in the wide field CCD images of the 77 nearby clusters of the WIde-field Nearby Galaxy-cluster Survey (WINGS). This sample is complete in X-ray flux in the ... More
WINGS-SPE III: Equivalent width measurements, spectral properties and evolution of local cluster galaxiesFeb 17 2014[Abridged] We investigate the frequency of the various spectral types as a function both of the clusters' properties and of the galaxies' characteristics. In this way, using the same classification criteria adopted for higher redshift studies, we can ... More
On the connection between shape and stellar population in early-type galaxiesOct 20 2010We report on the discovery of a relation between the stellar mass $M^*$ of early-type galaxies (hereafter ETGs), their shape, as parametrized by the Sersic index $n$, and their stellar mass-to-light ratio $M^*/L$. In a 3D log space defined by these variables ... More
OmegaWINGS: OmegaCAM@VST observations of WINGS galaxy clustersMar 09 2015The Wide-field Nearby Galaxy-cluster Survey (WINGS) is a wide-field multi-wavelength survey of X-ray selected clusters at z =0.04-0.07. The original 34'x34' WINGS field-of- view has now been extended to cover a 1 sq.deg field with both photometry and ... More
The visible environment of polar ring galaxiesJun 16 1997A statistical study of the environment around Polar Ring Galaxies is presented. Two kinds of search are performed: 1) a study of the concentration and diameters of all the objects surrounding the Polar Rings, within a search field 5 times the ring diameter. ... More
Dark matter as a Bose--Einstein Condensate: the relativistic non-minimally coupled caseOct 14 2013Feb 11 2014Bose--Einstein Condensates have been recently proposed as dark matter candidates. In order to characterise the phenomenology associated to such models, we extend previous investigations by studying the most general case of a relativistic BEC on a curved ... More
Extended LCDM: generalized non-minimal coupling for dark matter fluidsAug 08 2011Oct 21 2011In this paper we discuss a class of models that address the issue of explaining the gravitational dynamics at the galactic scale starting from a geometric point of view. Instead of claiming the existence of some hidden coupling between dark matter and ... More
WINGS-SPE Spectroscopy in the WIde-field Nearby Galaxy-cluster SurveyDec 10 2008Aims. We present the results from a comprehensive spectroscopic survey of the WINGS (WIde-field Nearby Galaxy-cluster Survey) clusters, a program called WINGS-SPE. The WINGS-SPE sample consists of 48 clusters, 22 of which are in the southern sky and 26 ... More
Surface photometry of WINGS galaxies with GASPHOTOct 09 2014Oct 10 2014Aims. We present the B-, V- and K-band surface photometry catalogs obtained running the automatic software GASPHOT on galaxies from the WINGS cluster survey having isophotal area larger than 200 pixels. The catalogs can be downloaded at the Centre de ... More
The evolution of spiral, S0 and elliptical galaxies in clustersMar 03 2009Mar 18 2009We quantify the evolution of the spiral, S0 and elliptical fractions in galaxy clusters as a function of cluster velocity dispersion ($\sigma$) and X-ray luminosity ($L_X$) using a new database of 72 nearby clusters from the WIde-Field Nearby Galaxy-cluster ... More
Morphological Fractions of Galaxies in WINGS Clusters: revisiting the Morphology-Density ParadigmMar 04 2015Mar 05 2015We present the Morphology-Density and Morphology-Radius relations (T-Sigma and T-R, respectively) obtained from the WINGS database of galaxies in nearby clusters. Aiming to achieve the best statistics, we exploit the whole sample of galaxies brighter ... More
Galaxy stellar mass functions of different morphological types in clusters, and their evolution between z=0.8 and z=0Oct 21 2010We present the galaxy stellar mass function (MF) and its evolution in clusters from z~0.8 to the current epoch, based on the WIde-field Nearby Galaxy-cluster Survey (WINGS) (0.04<z<0.07), and the ESO Distant Cluster Survey (EDisCS) (0.4<z <0.8). We investigate ... More
GASP IV: A muse view of extreme ram-pressure stripping in the plane of the sky: the case of jellyfish galaxy JO204Aug 29 2017In the context of the GAs Stripping Phenomena in galaxies with Muse (GASP) survey, we present the characterization of JO204, a jellyfish galaxy in A957, a relatively low-mass cluster with $M=4.4 \times10^{14}M_\odot$. This galaxy shows a tail of ionized ... More
The evolution of galaxy sizesDec 13 2012We present a study of galaxy sizes in the local Universe as a function of galaxy environment, comparing clusters and the general field. Galaxies with radii and masses comparable to high-z massive and compact galaxies represent 4.4% of all galaxies more ... More
Commissioning experience and beam physics measurements at the SwissFEL Injector Test FacilityJun 08 2016Aug 18 2016The SwissFEL Injector Test Facility operated at the Paul Scherrer Institute between 2010 and 2014, serving as a pilot plant and testbed for the development and realization of SwissFEL, the X-ray Free-Electron Laser facility under construction at the same ... More
Heavy Quarkonium PhysicsDec 13 2004Jul 26 2005This report is the result of the collaboration and research effort of the Quarkonium Working Group over the last three years. It provides a comprehensive overview of the state of the art in heavy-quarkonium theory and experiment, covering quarkonium spectroscopy, ... More