Atomic hydrogen in a field in Cygnus X containing the supernova remnant G78.2+2.1

Details Atomic hydrogen in a field in Cygnus X containing the supernova remnant G78.2+2.1 Atomic hydrogen in a field in Cygnus X containing the supernova remnant G78.2+2.1

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26as...39..133l&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 39, Feb. 1980, p. 133-151.

Astronomy and Astrophysics

Astrophysics

70

Absorption Spectra, Galactic Structure, Hydrogen Atoms, Interstellar Gas, Supernova Remnants, Astronomical Maps, Emission Spectra, Galactic Evolution, H Ii Regions, Interstellar Matter, Spectrum Analysis

Scientific paper

The mapping of a 2 deg field centered on the supernova remnant G78.2+2.1 in the 21 cm line emission of atomic hydrogen is presented. Analysis of visibilities shows that the structure is concentrated down to scale sizes of a few arcmin at velocities corresponding to arms recognized from large-scale emission features. Atomic hydrogen coincident with a foreground dark cloud can be seen absorbing the background continuum emission from the HII region IC1318; the absorption correlates with the H(alpha) extinction in the field, and there is evidence that some hydrogen in this cloud is in molecular form.

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