More isotropic oblate rotators in elliptical galaxies

Details More isotropic oblate rotators in elliptical galaxies More isotropic oblate rotators in elliptical galaxies

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...195l...1n&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 195, no. 1-2, April 1988, p. L1-L4.

Astronomy and Astrophysics

Astrophysics

48

Disk Galaxies, Elliptical Galaxies, Galactic Structure, Isotropic Media, Oblate Spheroids, Cosmic Dust, Galactic Rotation, Hubble Diagram, Stellar Luminosity

Scientific paper

The authors have extracted from the literature a list of 24 elliptical galaxies showing evidence for having (inner) disks. Reconsidering the (V/σ, ɛ) test, it is concluded that kinematical and photometric data (available for 13 galaxies) are consistent with such disk-galaxies being isotropic nearly oblate rotators. The authors argue that at least about 30 to 50% of genuine E's must have a disk, generally faint, at the low end of the sequence of the disk-to-total luminosity ratio, and are isotropic oblate rotators. Only a favorable orientation reveals the disk in a few of them.

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