Abstract
view Abstract Citations (33) References (9) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Observations of an Unusual Cold Cloud in the Galaxy Riegel, Kurt W. ; Jennings, Mark C. Abstract Measurements of 21-cm line spectra indicate the existence of a large cold cloud of neutral hydrogen in the Galaxy. The cloud is seen as a very strong hydrogen self-absorption feature, whose half-width is `~-`3 .5 km sec'. We derive an upper limit to the cloud temperature of 42° K, and a probab1~ value of 200 K if data on continuum-source absorption are used. The cloud extends over at least 200 of longitude in the direction of the galactic center, and is probably within 1 kpc of the Sun Publication: The Astrophysical Journal Pub Date: August 1969 DOI: 10.1086/150096 Bibcode: 1969ApJ...157..563R full text sources ADS |
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