Rotation and mass of 21 isolated galaxies

Details Rotation and mass of 21 isolated galaxies Rotation and mass of 21 isolated galaxies

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pazh...10..253k&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 10, Apr. 1984, p. 253-259) Soviet Astronomy Letters (ISSN 0360-0327), vol. 10, Mar.-Apr

Astronomy and Astrophysics

Astronomy

3

Galactic Rotation, Mass Distribution, Mass To Light Ratios, Astronomical Spectroscopy, Kepler Laws, Sky Surveys (Astronomy)

Scientific paper

Spectrograms of 21 isolated galaxies from the catalog of Karachentseva (1973) obtained during 1977-1981 with the 6-m telescope of the Special Astrophysical Observatory at Nizhni Arkhyz and reported by Karachentseva and Karachentsev (1979 and 1981) are used to determine the rotation curves and estimate the masses. The results are presented in tables and graphs along with Palomar Sky Survey photographs of the galaxies. The rotation curve is found to be flat in 19 of the 21 galaxies, and the mean mass/luminosity ratio is calculated as 7.0 + or - 1.1 (using the mass within the 25-mag/sq arcsec isophote and the integrated light in solar units).

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