Bar-induced gas velocities in the bulge of M31
1994; IOP Publishing; Volume: 426; Linguagem: Inglês
10.1086/187332
ISSN1538-4357
Autores Tópico(s)Pulsars and Gravitational Waves Research
Resumoview Abstract Citations (40) References (13) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Bar-induced Velocities in the Bulge of M31 Stark, Antony A. ; Binney, James Abstract Interstellar gas on closed orbits in a weak barlike potential, when viewed from an appropriate angle, will generate a velocity field similar to what is observed in the bulge of M31. Three phenomena observed in the inner kiloparsec of M31 are best explained by a central bar: (I) the tilt of the inner isophotes, (2) gas velocities in the inner kiloparsec, (3) the "face-on spiral" pattern seen in dust and ionized gas. Models that fit the data have the near end of the bar south of the nucleus, and the long axis of the bar at an angle of about 20^deg^ to the projection of the line of sight onto the plane of M31. Publication: The Astrophysical Journal Pub Date: May 1994 DOI: 10.1086/187332 Bibcode: 1994ApJ...426L..31S Keywords: Astronomical Models; Dynamic Models; Galactic Bulge; Galactic Nuclei; Galactic Structure; Gas Dynamics; Interstellar Gas; Kinematics; Orbit Calculation; Spiral Galaxies; Velocity Distribution; Astronomical Photometry; Astronomical Spectroscopy; Cosmic Dust; Emission Spectra; Ionized Gases; Mathematical Models; Astrophysics; GALAXIES: INDIVIDUAL MESSIER NUMBER: M31; GALAXIES: KINEMATICS AND DYNAMICS; GALAXIES: STRUCTURE full text sources ADS | data products SIMBAD (1) NED (1)
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