OH/IR stars within one degree of the galactic centre

Details OH/IR stars within one degree of the galactic centre OH/IR stars within one degree of the galactic centre

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...128..230h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 128, no. 1, Nov. 1983, p. 230-244. Research supported by the National Radio As

Astronomy and Astrophysics

Astrophysics

45

Galactic Nuclei, Hydroxyl Emission, Infrared Stars, Milky Way Galaxy, Star Distribution, Astronomical Catalogs, Astronomical Maps, Radial Velocity, Red Giant Stars

Scientific paper

A 100-m telescope and VLA search for OH line emission at 1612 MHz, in an area of 1-deg radius around the galactic center, has led to the detection of 52 point sources, of which 34 are demonstrated to be OH/IR stars. The average radial velocity of these stars varies linearly with longitude in the direction of galactic rotation. The dispersion around the average velocity is large, at 140-160 km/sec. The derivation of total mass distribution near the center from dynamical considerations yields results that agree with previous determinations based on substantially different methods and assumptions.

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