Surface photometry of southern elliptical galaxies

1988 ◽  
Vol 68 ◽  
pp. 173 ◽  
Author(s):  
R. R. de Carvalho ◽  
L. N. da Costa
Keyword(s):  
Elliptical Galaxies ◽  
Surface Photometry

CCD surface photometry of the bright elliptical galaxies NGC 720, NGC 1052, and NGC 4697

1987 ◽  
Vol 94 ◽  
pp. 1508 ◽  
Author(s):  
Robert I. Jedrzejewski ◽  
Roger L. Davies ◽  
Garth D. Illingworth
Keyword(s):  
Elliptical Galaxies ◽  
Surface Photometry

scholarly journals Morphological Properties of Elliptical Galaxies

1987 ◽  
Vol 127 ◽  
pp. 377-378
Author(s):  
S. Djorgovski
Keyword(s):  
Elliptical Galaxies ◽  
Morphological Properties ◽  
Surface Photometry ◽  
Luminous Galaxies

In the poster as presented at the meeting, I described global morphological properties of elliptical galaxies, based on the data from a CCD surface photometry survey of ~ 200 ellipticals and ~ 50 SO's (Djorgovski 1985). In this brief summary, I emphasize two points: (1) there is a very weak and very noisy trend of radial shape with luminosity, in the sense that more luminous galaxies are less concentrated, and (2) there is no preference for low-luminosity ellipticals to show boxy isophotes, and they differ in that respect from the bulges.

scholarly journals The Radial Velocities of Planetary Nebulae in NGC 3379

1993 ◽  
Vol 155 ◽  
pp. 570-570
Author(s):  
Robin Ciardullo ◽  
George Jacoby
Keyword(s):  
Radial Velocity ◽  
Absorption Line ◽  
Planetary Nebula ◽  
Velocity Dispersion ◽  
Planetary Nebulae ◽  
Elliptical Galaxies ◽  
Emission Lines ◽  
Surface Photometry ◽  
Stellar Kinematics ◽  
Velocity Measurements

Several authors have analyzed the kinematics of elliptical galaxies using surface photometry in combination with absorption line velocity dispersion measurements. However, these analyses never explore the halos of galaxies, since the best absorption line measurements extend only ∼1 re. The only way to extend our knowledge of stellar kinematics to larger radii is to use the emission lines of planetary nebula for radial velocity measurements.

The Isophotal Structure of Elliptical Galaxies

1987 ◽  
Vol 127 ◽  
pp. 391-392
Author(s):  
T.B. Williams ◽  
Bidushi Bhattacharya
Keyword(s):  
Elliptical Galaxies ◽  
Surface Photometry ◽  
Geometrical Distortion ◽  
Large Sample ◽  
Large Plate ◽  
The Galaxy ◽  
Image Intensifiers

We have obtained photographic surface photometry for a large sample of elliptical galaxies. The plates were obtained using the KPNO 0.9 m telescopes with Carnegie image intensifiers and IIIaJ plates. The f/13.5 secondaries were used to obtain a large plate scale: 0.33 arcsec per 20 micron pixel. In addition to the galaxy images, flat fields on cloudy skies and geometrical distortion calibration images of astrometric clusters were obtained. All plates were calibrated with the standard KPNO spot sensitometers. The sample of galaxies contains 75 ellipticals of total mB greater than 13 and north of −300 declination. The plates were digitized on the KPNO PDS microdensitometer by Dr. E. Malumuth. At the present time about 50% of the sample is reduced.

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.

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
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