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The Isophotal Structure of Elliptical Galaxies

Published online by Cambridge University Press:  04 August 2017

T.B. Williams  and
Bidushi Bhattacharya
T.B. Williams
Affiliation:
Department of Physics and Astronomy, Rutgers University, P.O. Box 849, Piscataway, NJ 08854, USA
Bidushi Bhattacharya
Affiliation:
Department of Physics and Astronomy, Rutgers University, P.O. Box 849, Piscataway, NJ 08854, USA

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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.

Type
Posters
Information
Symposium - International Astronomical Union , Volume 127: Structure and Dynamics of Elliptical Galaxies , 1987 , pp. 391 - 392
Copyright
Copyright © Reidel 1987