Kinematics of the dwarf spheroidal galaxy NGC 205

Details Kinematics of the dwarf spheroidal galaxy NGC 205 Kinematics of the dwarf spheroidal galaxy NGC 205

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.245p..12c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 245, July 1, 1990, p. 12P-16P.

Astronomy and Astrophysics

Astronomy

40

Astronomical Photometry, Dwarf Galaxies, Galactic Nuclei, Irregular Galaxies, Mass To Light Ratios, Elliptical Galaxies, Galactic Rotation, Morphology, Velocity Distribution

Scientific paper

Kinematic data and surface photometry are presented for the dwarf spheroidal galaxy NGC 205. In common with giant elliptical galaxies, this dwarf spheroidal appears to be flattened by velocity dispersion anisotropy rather than by rotation. The velocity dispersion is of order 15 km/s in the nuclear region, which is the site of recent star formation, and increases to 50 km/s in the outer regions. Treating the nuclear component separately from the bulk of the galaxy, mass-to-light ratios in red light of 2.35 in the center, and 9.4 for the bulk of the galaxy are derived.

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