English
Related papers

Related papers: Faint Dwarf Galaxies in Hickson Compact Group 90

200 papers

We present CCD surface photometry of 16 nearby dwarf galaxies, many of which were only recently discovered. Our sample comprises both isolated galaxies and galaxies that are members of nearby galaxy groups. The observations were obtained in…

Astrophysics · Physics 2009-11-07 L. N. Makarova , I. D. Karachentsev , E. K. Grebel , O. Yu. Barsunova

We describe a sample of thirteen bright (18.5<Bj<20.1) compact galaxies at low redshift (0.05<z<0.21) behind the Fornax Cluster. These galaxies are unresolved on UK Schmidt sky survey plates, so would be missing from most galaxy catalogs…

Fifty-seven nearby low surface brightness dwarf galaxies were searched for globular cluster candidates (GCCs) using Hubble Space Telescope WFPC2 imaging in V and I. The sample consists of 18 dwarf spheroidal (dSph), 36 irregular (dIrr), and…

Astrophysics · Physics 2009-11-11 Margarita E. Sharina , Thomas H. Puzia , Dmitry I. Makarov

We present deep H{\alpha} imaging of seven Hickson Compact Groups (HCGs) using the 4.1m Southern Astrophysics Research (SOAR) Telescope. The high spatial resolution of the observations allow us to study both the integrated star-formation…

Astrophysics of Galaxies · Physics 2015-05-08 Paul Eigenthaler , Sylvia Ploeckinger , Miguel Verdugo , Bodo Ziegler

The widely varying dwarf galaxy counts in different environments provide a strong challenge to standard hierarchical clustering models. The luminosity function is not universal, but seems to be strongly dependent upon environment. In this…

Astrophysics · Physics 2009-11-07 S. Sabatini , J. Davies , R. Scaramella , R. Smith , M. Baes , S. M. Linder , S. Roberts , V. Testa

The Fornax Deep Survey Dwarf galaxy Catalog (FDSDC) includes 564 dwarf galaxies in the Fornax cluster and the in-falling Fornax A subgroup. We use the FDSDC galaxies for statistical analysis of the structural and stellar population…

The optical and HI properties for a sample of low surface brightness (LSB) dwarf galaxies, cataloged from the Second Palomar Sky Survey, is presented. Gas mass fractions for LSB dwarfs reach the highest levels of any know galaxy type…

Astrophysics · Physics 2009-11-06 J. Schombert , S. McGaugh , J. Eder

The formation of ultra-compact dwarf galaxies (UCDs) is believed to be interaction driven, and UCDs are abundant in the cores of galaxy clusters, environments that mark the end-point of galaxy evolution. Nothing is known about the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 C. Da Rocha , S. Mieske , I. Y. Georgiev , M. Hilker , B. L. Ziegler , C. Mendes de Oliveira

We present the discovery of 48 new and the analysis of 55, including 7 previously discovered, dwarf galaxy candidates around the giant spiral galaxy NGC~2997 using deep $BVI$ images from the KMTNet Supernova Program. Their $V$-band central…

We present the results of our search for faint Local Group dwarf galaxies in compact high-velocity clouds (HVCs). We used digitized Palomar Observatory Sky Survey (POSS) data to examine 1 square degree of sky around each of ~250 northern…

Astrophysics · Physics 2009-11-07 Joshua D. Simon , Leo Blitz

We conduct a survey of low surface brightness (LSB) satellite galaxies around the Local Volume massive spirals using long exposures with small amateur telescopes. We identified 27 low and very low surface brightness objects around the…

The detection of low surface brightness galaxies beyond the Local Group poses significant observational challenges, yet these faint systems are fundamental to our understanding of dark matter, hierarchical galaxy formation, and cosmic…

We report the discovery of a new faint dwarf galaxy, which we dub Scl-MM-Dw1, at a projected distance of $\sim$65 kpc from the spiral galaxy NGC 253. The discovery results from the Panoramic Imaging Survey of Centaurus and Sculptor…

Astrophysics of Galaxies · Physics 2015-06-22 D. J. Sand , D. Crnojević , J. Strader , E. Toloba , J. D. Simon , N. Caldwell , P. Guhathakurta , B. McLeod , A. C. Seth

We present the detection of 89 low surface brightness (LSB), and thus low stellar density galaxy candidates in the Perseus cluster core, of the kind named "ultra-diffuse galaxies", with mean effective V-band surface brightnesses 24.8-27.1…

We discuss the approach of searching low mass dwarf galaxies, $\lesssim10^6\textrm{ M}_{\odot}$, in the general field, using integrated light surveys. By exploring the limiting surface brightness-spatial resolution…

Astrophysics of Galaxies · Physics 2018-04-11 Shany Danieli , Pieter van Dokkum , Charlie Conroy

Observational bias against finding Milky Way (MW) dwarf galaxies at low Galactic latitudes (b < 20 deg) and at low surface brightnesses (fainter than 29 mag arcsec^-2, in the V-band) currently limits our understanding of the faintest limits…

Astrophysics of Galaxies · Physics 2015-11-11 Mariah Baker , Beth Willman

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

A sample of about 3,800 Low Surface Brightness (LSB) galaxies was selected using the all-sky near-infrared (J, H and K_s-band) 2MASS survey. The selected objects have a mean central surface brightness within a 5 arcsec radius around their…

Astrophysics · Physics 2009-11-07 D. Monnier Ragaigne , W. van Driel , S. E. Schneider , T. H. Jarrett , C. Balkowski

We have searched for nearby dwarf galaxies in 27 northern groups with characteristic distances 8-15 Mpc based on the Second Palomar Sky Survey prints. In a total area of about 2000 square degrees, we have found 90 low-surface-brightness…

Astrophysics · Physics 2009-06-23 I. D. Karachentsev , V. E. Karachentseva , W. K. Huchtmeier