Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...225..784c&link_type=abstract
Astrophysical Journal, Part 1, vol. 225, Nov. 1, 1978, p. 784-789.
Astronomy and Astrophysics
Astronomy
39
Galaxies, Hydrogen Clouds, Interstellar Gas, Radio Astronomy, Radio Interferometers, Absorption Spectra, Astronomical Maps, Carbon Monoxide, Galactic Structure, Gas Density, Radial Velocity, Velocity Distribution
Scientific paper
Maps of neutral hydrogen emission in the irregular galaxy M82 have been obtained with a spatial resolution of 1 arcmin and a velocity resolution of 10.55 km/s. A velocity map with spatial resolution of 1.5 arcmin was also constructed. These maps reveal a close association of the H I with optical features, including the filaments extending from the nucleus along the galaxy minor axis. A bar of H 1 at the east end of the major axis of M82 has been found which may be due to interaction with M81. The H I distribution and velocities agree quite well with CO data near the nucleus of M82. However, both the systemic velocity of M82 and the velocity gradient determined from the radio data disagree with optically measured values. As much as 50% of the mass of M82 may be interstellar, and active star formation seems likely.
Chu Kaili
Crutcher Richard M.
Rogstad David H.
No associations
LandOfFree
Aperture-synthesis observations of H I in the galaxy M82 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Aperture-synthesis observations of H I in the galaxy M82, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aperture-synthesis observations of H I in the galaxy M82 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1066849