Surface photometry of dwarf elliptical galaxies in the Virgo cluster

1986 ◽  
Vol 60 ◽  
pp. 475 ◽  
Author(s):  
S.-I. Ichikawa ◽  
K.-I. Wakamatsu ◽  
S. Okamura
Keyword(s):  
Elliptical Galaxies ◽  
Virgo Cluster ◽  
Surface Photometry ◽  
Dwarf Elliptical Galaxies

Surface Photometry of Dwarf Elliptical Galaxies in the Virgo Cluster: Erratum

1986 ◽  
Vol 62 ◽  
pp. 253 ◽  
Author(s):  
Shin-Ichi Ichikawa ◽  
Ken-Ichi Wakamatsu ◽  
Sadanori Okamura
Keyword(s):  
Elliptical Galaxies ◽  
Virgo Cluster ◽  
Surface Photometry ◽  
Dwarf Elliptical Galaxies

scholarly journals Galaxy Populations and Evolution in Clusters. IV. Deep HiObservations of Dwarf Elliptical Galaxies in the Virgo Cluster

2003 ◽  
Vol 591 (1) ◽  
pp. 167-184 ◽  
Author(s):  
Christopher J. Conselice ◽  
Karen O’Neil ◽  
John S. Gallagher ◽  
Rosemary F. G. Wyse
Keyword(s):  
Elliptical Galaxies ◽  
Virgo Cluster ◽  
Dwarf Elliptical Galaxies ◽  
Galaxy Populations

scholarly journals HST WFPC-2 Imaging of Four Nearby LSB Galaxies

1999 ◽  
Vol 171 ◽  
pp. 210-213
Author(s):  
Karen O’Neil
Keyword(s):  
Elliptical Galaxies ◽  
Virgo Cluster ◽  
Small Scale ◽  
Giant Stars ◽  
Structural Peculiarities ◽  
The Galaxy ◽  
Dwarf Elliptical Galaxies ◽  
Giant Branch Stars ◽  
Lsb Galaxies ◽  
Spiral Arm

AbstractBetween May, 1996 and January, 1997 HST WFPC-2 images of four nearby LSB galaxies were taken through both the 8140Å and 3000Å filters. The first galaxy imaged, UGC 12695, is a nearby (z~0.021) LSB disk galaxy. UGC 12695 has an unusual morphology, consisting of a Y-shaped nucleus surrounded by a faint spiral arm. Additionally, numerous HI regions are spread throughout the galaxy. One of the surprising discoveries with the WFPC2 imaging was that a number of what were previously believed to be structural peculiarities in the galaxy are actually background galaxies. Once the effects of these galaxies are removed, the resultant U—I color of UGC 12695 is only −0.2, making it possibly the bluest galaxy in the local universe. When combined with the metallicity studies of McGaugh (1992), these colors indicate UGC 12695 to be a highly unevolved galaxy.The other three galaxies imaged - V1L4, V2L8, and V7L3 - are dwarf elliptical galaxies located in the Virgo cluster. The intent of their images was to determine the galaxies’ small scale structure and place limits on the density and type of giant branch stars within each galaxy. Placed at the distance of the Virgo cluster, luminosity fluctuations indicate the galaxies to contain only from 4 – 13 stars per pixel, coinciding with a K/M giant ratio ranging from 6 to ∞ (no M giant stars). Additionally, we found no evidence for stellar clumping in these galaxies although an extremely red, extremely small bulge was found at the core of V2L8.

Environmental effects on the dwarf elliptical galaxies in the Virgo cluster

1988 ◽  
Vol 96 ◽  
pp. 62 ◽  
Author(s):  
Shin-Ichi Ichikawa ◽  
Sadanori Okamura ◽  
Keiichi Kodaira ◽  
Ken-Ichi Wakamatsu
Keyword(s):  
Environmental Effects ◽  
Elliptical Galaxies ◽  
Virgo Cluster ◽  
Dwarf Elliptical Galaxies

scholarly journals Surface Photometry of Star Clusters in the Dwarf Elliptical Galaxies NGC 185 and NGC 205

2002 ◽  
Vol 207 ◽  
pp. 174-176 ◽  
Author(s):  
Sang Chul Kim ◽  
Myung Gyoon Lee ◽  
Doug Geisler ◽  
Ata Sarajedini ◽  
Taft E. Armandroff ◽  
...  
Keyword(s):  
Power Law ◽  
Surface Brightness ◽  
Star Clusters ◽  
Elliptical Galaxies ◽  
Stellar Object ◽  
Surface Photometry ◽  
Dwarf Elliptical Galaxies ◽  
Tidal Tails

We present the surface photometry of star clusters in the nearby dwarf elliptical galaxies NGC 185 and NGC 205, obtained from deep HST WFPC2 F555W (V) and F814W (I) images. We have obtained surface brightness and color profiles of six star clusters in NGC 185, seven star clusters in NGC 205, and one recently discovered non-stellar object in NGC 205. The surface brightness profiles of ten star clusters are fitted well by the King model, and those of four star clusters are fitted well by the power-law. Three out of ten star clusters fitted well with King model show signs of tidal tails.

How to disentangle the group of dwarf elliptical galaxies in the Virgo cluster

2009 ◽  
Vol 330 (9-10) ◽  
pp. 1037-1039 ◽  
Author(s):  
T. Gotthart ◽  
M. Jäger ◽  
G. Hensler ◽  
W.W. Zeilinger ◽  
A. Boselli
Keyword(s):  
Elliptical Galaxies ◽  
Virgo Cluster ◽  
Dwarf Elliptical Galaxies
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