A new Milky Way satellite found in 21-centimeter line observations

Details A new Milky Way satellite found in 21-centimeter line observations A new Milky Way satellite found in 21-centimeter line observations

Nov 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...201l.103s&link_type=abstract

Astrophysical Journal, vol. 201, Nov. 1, 1975, pt. 2, p. L103-L108. NSF-supported research.

Astronomy and Astrophysics

Astronomy

21

Galactic Structure, Hydrogen Clouds, Intergalactic Media, Microwave Emission, Tides, Astronomical Maps, Astronomical Models, H Lines, Milky Way Galaxy, Radio Astronomy

Scientific paper

An anomalous feature in the 21-cm line near the galactic plane appears to be a small, nearby, tidally distorted galaxy. Tidal debris is shown to form a stream of high-velocity H I clouds. The observations and a tidal interaction model based on Schmidt's rotation parameters indicate a distance from the sun of 17 plus or minus 4 kpc, a perigalactic distance of 22 plus or minus 2 kpc, and a mass of 1.0 plus or minus 0.2 x 10 to 8 solar masses.

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