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Low-surface-brightness galaxies (LSBs) contribute to a significant fraction of all the galaxies in the Universe. Ultra-diffuse galaxies (UDGs) form a subclass of LSBs that has attracted a lot of attention in recent years (although its…

The intracluster light (ICL) is a faint diffuse stellar component in clusters made of stars not bound to individual galaxies. We have carried out a large scale study of this component in the nearby Virgo cluster. The diffuse light is traced…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Nieves Castro-Rodriguez , Magda Arnaboldi , J. Alfonso L. Aguerri , Ortwin Gerhard , Sadanori Okamura , Naoki Yasuda , Kenneth C. Freeman

In order to investigate the nature of dwarf Low Surface Brightness (LSB) galaxies we have undertaken a deep B and I band CCD survey of a 14 sq degree strip in the Virgo Cluster and applied a Fourier convolution technique to explore its…

Astrophysics · Physics 2009-11-10 S. Sabatini , J. Davies , W. van Driel , M. Baes , S. Roberts , R. Smith , S. Linder , K. O'Neil

We detected a ring-like distribution of far-infrared emission in the direction of the center of the Virgo cluster. We studied this feature in the FIR, radio, and optical domains, and deduced that the dust within the feature reddens the…

Astrophysics · Physics 2009-10-31 N. Brosch , E. Almoznino , B. Wszolek , K. Rudnicki

We use a sample of ~6000 galaxies detected by the Arecibo Legacy Fast ALFA (ALFALFA) 21cm survey, to measure the clustering properties of HI-selected galaxies. We find no convincing evidence for a dependence of clustering on the galactic…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Emmanouil Papastergis , Riccardo Giovanelli , Martha P. Haynes , Aldo Rodríguez-Puebla , Michael G. Jones

We present the results of a combined X-ray and Halpha study of 10 galaxy groups and 17 galaxy clusters using the Chandra X-ray Observatory and the Maryland Magellan Tunable Filter. We find no difference in the morphology or detection…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Michael McDonald , Sylvain Veilleux , Richard Mushotzky

We present the analysis of the galaxy structural parameters from Halpha3, an Halpha narrow-band imaging follow-up survey of ~800 galaxies selected from the HI ALFALFA Survey in the Local and Coma Superclusters. Taking advantage of Halpha3…

We present observations of the stripped Virgo Cluster spiral NGC 4522, a clear, nearby example of a galaxy currently undergoing ISM-ICM stripping. Utilizing SparsePak integral field spectroscopy on the WIYN 3.5m telescope and GALEX UV…

Astrophysics · Physics 2011-02-11 Hugh H. Crowl , Jeffrey D. P. Kenney

In this VERTICO science paper we aim to study how the star formation process depends on galactic environment and gravitational interactions in the context of galaxy evolution. We explore the scaling relation between the star formation rate…

During pilot observations of the Virgo Environmental Survey Tracing Galaxy Evolution (VESTIGE), a blind narrow-band Halpha+[NII] imaging survey of the Virgo cluster carried out with MegaCam at the CFHT, we have observed the spiral galaxy…

Using mid-infrared star formation rate and stellar mass indicators in $\textit{WISE}$, we construct and contrast the relation between star formation rate and stellar mass for isolated and paired galaxies. Our samples comprise a selection of…

As our closest cluster-neighbor, the Virgo cluster of galaxies is intensely studied by observers to unravel the mysteries of galaxy evolution within clusters. At this stage, cosmological numerical simulations of the cluster are useful to…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-04 Mark Olchanski , Jenny G. Sorce

We have completed a survey of 30 Virgo cluster galaxies in the Halpha emission-line using Fabry-Perot interferometry. The goal of the survey is to obtain a high angular resolution sample of velocity fields of spirals and to study the…

We present the analysis of the HI content of a sample of early-type galaxies (ETGs) in low-density environments (LDEs) using the data set provided by the Arecibo Legacy Fast ALFA (ALFALFA) survey. We compare their properties to the sample…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 M. Grossi , S. di Serego Alighieri , C. Giovanardi , G. Gavazzi , R. Giovanelli , M. P. Haynes , B. R. Kent , S. Pellegrini , S. Stierwalt , G. Trinchieri

NGC 4330 is one of the Virgo galaxies whose UV distribution shows a tail structure. An associated tail structure is also observed in the HI and H$\alpha$ emission distributions. Previous dynamical modeling showed that the galaxy is…

Astrophysics of Galaxies · Physics 2021-02-03 B. Vollmer , M. Fossati , A. Boselli , M. Soida , S. Gwyn , J. C. Cuillandre , Ph. Amram , S. Boissier , M. Boquien , G. Hensler

We present the color distributions of globular cluster (GC) systems for 100 Virgo cluster early-type galaxies observed in the ACS Virgo Cluster Survey. The color distributions of individual GC systems are consistent with continuous trends…

We study the evolution of dwarf (L_H < 10^{9.6} L_Ho) star forming and quiescent galaxies in the Virgo cluster by comparing their UV to radio centimetric properties to the predictions of multizone chemo-spectrophotometric models of galaxy…

Astrophysics · Physics 2009-11-13 A. Boselli , S. Boissier , L. Cortese , G. Gavazzi

The effect of environment on the circumgalactic medium (CGM) is investigated through a comparison of Lya absorption line data in the Virgo Cluster and the field. This Letter uses the first systematic survey of background QSOs in and around…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Joo Heon Yoon , Mary Putman

We present a new study of H{\alpha}/FUV flux ratios of star forming regions within a sample of nearby spiral galaxies. We search for evidence of the existence of a cluster mass dependent truncation in the underlying stellar initial mass…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-14 Maciej T. Hermanowicz , Robert C. Kennicutt , John J. Eldridge

We present griz and H-band surface brightness profiles and bulge-disk decompositions for a morphologically-broad sample of 286 Virgo cluster galaxies. The H-band data come from a variety of sources including our survey of 171 galaxies at…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Michael McDonald , Stephane Courteau , R. Brent Tully , Joel Roediger