Giant H II regions in M81

H-alpha and VLA radio continuum observations at wavelengths of 6 and 20 cm are used to study the distribution of extinction and the distribution of giant radio H II regions along the spiral arms in M81. The radial distribution of visual extinction Av in the plane of M81 shows no trend, with an upper...

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Veröffentlicht in:	Astrophys. J.; (United States) 1987-08, Vol.319 (1), p.61-75
Hauptverfasser:	Kaufman, Michele, Bash, Frank N., Kennicutt, R. C., Jr, Hodge, P. W.
Format:	Artikel
Sprache:	eng
Schlagworte:	640105 - Astrophysics & Cosmology- Galaxies Astronomy Astrophysics BALMER LINES CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS CONFIGURATION COSMIC RADIO SOURCES DISTRIBUTION Earth, ocean, space ELECTROMAGNETIC RADIATION Exact sciences and technology FLUX DENSITY GALAXIES H2 REGIONS Interstellar medium (ism) and nebulae in external galaxies NEBULAE RADIANT FLUX DENSITY RADIATIONS RADIO GALAXIES RADIOWAVE RADIATION SPATIAL DISTRIBUTION SPIRAL CONFIGURATION Stellar systems. Galactic and extragalactic objects and systems. The universe
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