High-resolution surface photometry of elliptical galaxies

1985 ◽  
Vol 57 ◽  
pp. 473 ◽  
Author(s):  
T. R. Lauer
Keyword(s):  
High Resolution ◽  
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

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

scholarly journals High-Resolution B-Photometry of the Milky Way and Results on Galactic Structure

1990 ◽  
Vol 139 ◽  
pp. 205-206
Author(s):  
S. Kimeswenger ◽  
W. Schlosser ◽  
K. J. Seidensticker ◽  
B. Hoffmann ◽  
Th. Schmidt-Kaler
Keyword(s):  
High Resolution ◽  
Milky Way ◽  
Galactic Structure ◽  
Surface Photometry ◽  
High Resolution Data ◽  
V Band ◽  
The Galaxy ◽  
Global Parameters ◽  
Pioneer 10 ◽  
Resolution Data

During the last two decades, many attempts were made to determine the global parameters of the Galaxy and to compare the Galaxy to other galaxies (Schmidt-Kaler and Schlosser 1973; de Vaucouleurs and Pence 1978; Gilmore 1984; van der Kruit 1986). While most of these investigations are based on star counts, a detailed overall study by surface photometry, because of the lack of homogeneous high-resolution data, is rare. The last attempt by van der Kruit (1986), based on Pioneer 10 data, suffered from low resolution. The great number of individual structures at low and even intermediate latitudes could not be recognized. Our work (B-band, Hoffmann et al. 1989, this volume; V-band, Schlosser, Schmidt-Kaler, and Schneider 1989; U-Band and R-band photometry, in preparation) provides this homogeneous high-resolution data.

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.

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