Abstract
view Abstract Citations (90) References (32) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Structure and origin of S0 galaxies. I - Surface photometry of S0 galaxies Burstein, D. Abstract Two-dimensional photographic surface photometry, in the B passband, is presented for 18 S0 galaxies and one elliptical, NGC 3379. Isophotal maps and major- and minor-axis profiles are given for these galaxies. Both an internal evaluation and an external evaluation of these data indicate that they are (overall) accurate to about 2% from a surface brightness of 18 to 26 mag/sq arcsec. Comparisons of the present photometry are made with that of a number of other observers, and possible serious systematic errors in earlier work are pointed out. The luminosity structure of S0 disks can vary considerably; of the 16 ordinary S0s in this sample, five have subtle nonaxisymmetric peculiarities in their disks. Since the S0s in this sample were chosen primarily for their 'normality', it is possible that about one-half of all S0s have nonaxisymmetric phenomena (besides bars) in their disks. The observed major-axis disk profiles are basically exponential, but almost all of the disks deviate in one way or another from being exactly exponential. These deviations usually take the form of humps or bumps in the disk luminosity profile that can vary both in length scale and in amplitude. Publication: The Astrophysical Journal Supplement Series Pub Date: November 1979 DOI: 10.1086/190625 Bibcode: 1979ApJS...41..435B Keywords: Astronomical Photometry; Elliptical Galaxies; Galactic Evolution; Galactic Structure; Spiral Galaxies; Astronomical Photography; Data Reduction; Error Analysis; Luminous Intensity; Astrophysics full text sources ADS | data products NED (19)
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