Further evidence of continuity between elliptical and disc galaxies

Details Further evidence of continuity between elliptical and disc galaxies Further evidence of continuity between elliptical and disc galaxies

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.242p..24c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 242, Jan. 1, 1990, p. 24P-27P.

Astronomy and Astrophysics

Astronomy

28

Astronomical Photometry, Disk Galaxies, Elliptical Galaxies, Galactic Structure, Charge Coupled Devices, Spiral Galaxies

Scientific paper

The behavior of the isophotes of the E galaxies in a new photometric sample of 33 early-type galaxies belonging to the Virgo cluster (Caon) is compared to that of the S0 galaxies. Almost all objects flatter than b/a = 0.2 are found to exhibit 'pointed' (or 'lemon-shaped') isophotes irrespective of their Hubble class, while almost none do if rounder than the same limit. This observation is used to support the incipient scenario in which a large fraction (about 1/2) of E galaxies - the so-called 'disky ellipticals' - populates one end of a disk-to-bulge sequence including S0 and spiral galaxies.

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