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Related papers: Surveying the Local Supercluster Plane

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We present the results from a wide-field spectroscopic survey of globular clusters (GCs) in the Virgo Cluster. We obtain spectra for 201 GCs and 55 ultracompact dwarfs (UCDs) using the Hectospec on the Multiple Mirror Telescope, and derive…

Aims. This work considers the Virgo cluster of galaxies, focusing on its structure, kinematics, and morphological landscape. Our principal aim is to estimate the virial mass of the cluster. For this purpose, we present a sample of 1537…

Astrophysics of Galaxies · Physics 2020-03-25 Olga G. Kashibadze , Igor D. Karachentsev , Valentina E. Karachentseva

We collected data on radial velocities and distances of galaxies to elucidate structure and kinematics of the filament attached to the Virgo cluster from south. In the region RA = [12.5 - 13.5]h, Dec = [-20 - 0]deg there are 171 galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Igor D. Karachentsev , Olga G. Nasonova

We examine a sample of 65 galaxies in the Virgo cluster with negative radial velocities relative to the Local Group. Some features of this sample are pointed out. All of these objects are positioned compactly within a virial zone of radius…

Cosmology and Nongalactic Astrophysics · Physics 2010-07-12 I. D. Karachentsev , O. G. Nasonova

In the region of the sky limited by the coordinates RA$=7.0^h...12.0^h$, Dec$=0^\circ...+20^\circ$ and extending from the Virgo Cluster to the South Pole of the Local Supercluster, we consider the data on the galaxies with radial velocities…

Astrophysics of Galaxies · Physics 2015-06-23 Igor D. Karachentsev , Olga G. Nasonova , Valentina E. Karachentseva

We measured the Tip of the Red Giant Branch distances to nine galaxies in the direction to the Virgo cluster using the Advanced Camera for Surveys on the Hubble Space Telescope. These distances put seven galaxies: GR 34, UGC 7512, NGC 4517,…

Astrophysics of Galaxies · Physics 2015-06-18 Igor. D. Karachentsev , R. Brent Tully , Po-Feng Wu , Edward J. Shaya , Andrew E. Dolphin

We report the discovery of three large (R29 >~ 1 arcminute) extremely low surface brightness (mu_(V,0) ~ 27.0) galaxies identified using our deep, wide-field imaging of the Virgo Cluster from the Burrell Schmidt telescope. Complementary…

The recent re-evaulation of the peculiar velocity field outside the Local Supercluster (Dekel et al. 1999, ApJ 522) has permitted a re-examination of the origins of the peculiar velocity field within the Local Supercluster using the Mark…

Astrophysics · Physics 2007-05-23 David Burstein

We examine the velocity field of galaxies around the Virgo cluster induced by its overdensity. A sample of 1792 galaxies with distances from the Tip of the Red Giant Branch, the Cepheid luminosity, the SNIa luminosity, the surface…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 I. D. Karachentsev , O. G. Nasonova

The ACS Virgo Cluster Survey consists of HST ACS imaging for 100 early-type galaxies in the Virgo Cluster, observed in the F475W and F850LP filters. We derive distances for 84 of these galaxies using the method of surface brightness…

We undertook a surface photometry survey of 200 galaxies in the Virgo cluster (complete to B<14.0 mag) carried out in the near-Infrared (NIR) H band. Combining velocity dispersion measurements from the literature with new spectroscopic data…

Astrophysics · Physics 2009-10-31 G. Gavazzi , A. Boselli , M. Scodeggio , D. Pierini , E. Belsole

We present the most extensive combined photometric and spectroscopic study to date of the enormous globular cluster (GC) system around M87, the central giant elliptical galaxy in the nearby Virgo cluster. Using observations from DEIMOS and…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Jay Strader , Aaron Romanowsky , Jean Brodie , Lee Spitler , Michael Beasley , Jacob Arnold , Naoyuki Tamura , Ray Sharples , Nobuo Arimoto

The peculiar radial velocities of eight clusters of galaxies, as determined from a variety of distance indicators, are consistent with a bulk flow not greatly different in direction and magnitude from the velocity vector of the Local Group…

Astrophysics · Physics 2007-05-23 Donald H. Gudehus

We present Hubble Space Telescope/WFPC2 images of sixteen dwarf galaxies as part of our snapshot survey of nearby galaxy candidates. We derive their distances from the luminosity of the tip of the red giant branch stars with a typical…

This paper is the first of a series considering the properties of distribution of nearby galaxies in the low density regions. Among 7596 galaxies with radial velocities V_{LG}<3500 km/s, absolute magnitudes M_K<-18.4^m$, and Galactic…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 I. D. Karachentsev , V. E. Karachentseva , O. V. Melnyk , A. A. Elyiv , D. I. Makarov

We present distance estimates for eleven peculiar Virgo cluster spiral galaxies based on measurements of the stellar kinematics of their central 2 kpc. Stellar circular velocities were obtained using two-integral dynamical models. Distances…

Astrophysics · Physics 2009-11-13 Juan R. Cortes , Jeffrey D. P. Kenney , Eduardo Hardy

Ultra diffuse galaxies (UDGs) have the sizes of giant galaxies but the luminosities of dwarfs. A key to understanding their origins comes from their total masses, but their low surface brightnesses ($\mu(V) \geq$ 25.0) generally prohibit…

We present cosmological simulations which closely mimic the real Universe within 100Mpc of the Local Group. The simulations, called Constrained Simulations, reproduce the large-scale density field with major nearby structures, including the…

Astrophysics · Physics 2009-11-06 Anatoly Klypin , Yehuda Hoffman , Andrey Kravtsov , Stefan Gottloeber

We present a list of 75 isolated late-type dwarf galaxies which have no neighbors with a relative radial velocity difference of less than 500 km/s or projected separations within 500 kpc. These were selected from $\sim$2000 dwarf galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2011-04-14 V. E. Karachentseva , I. D. Karachentsev , M. E. Sharina

We explore the structure and kinematics of a dispersed filament of galaxies residing between the Local Void and the Virgo cluster. For such purpose, we consider a sample of 361 galaxies with radial velocities $V_{LG} < 2000$ km/s inside the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 Igor D. Karachentsev , Valentina E. Karachentseva , Olga G. Nasonova
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