Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...235...49s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 235, no. 1-2, Aug. 1990, p. 49-54.
Astronomy and Astrophysics
Astrophysics
46
Astronomical Photometry, Elliptical Galaxies, Galactic Structure, Astronomical Models, Brightness Distribution, Color, Fourier Analysis, Galactic Bulge
Scientific paper
Results are reported from a detailed photometric analysis of the elliptical galaxy NGC 3610 in V, R, and I bands. The strongly peaked isophotes of this galaxy suggest the presence of a small stellar edge-on disk imbedded in its spheroid. The galaxy image was decomposed by subtracting iteratively disk models until a bulge showing perfectly elliptical iosphotes remained. The reliability of the decomposition is supported by a systematic study of the relation between isophote shapes and disk model parameters. The brightness profile of the disk follows an exponential law and shows a very small radial scale length (1.9 arcsec) and a quite high face-on central-surface brightness of 19 mag/sq arcsec in B.
Bender Ralf
Scorza Cecilia
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