A model for the transient OH emission from V1057 CYG

Details A model for the transient OH emission from V1057 CYG A model for the transient OH emission from V1057 CYG

Oct 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26a....52..213e&link_type=abstract

Astronomy and Astrophysics, vol. 52, no. 2, Oct. 1976, p. 213-217.

Astronomy and Astrophysics

Astrophysics

11

Hydroxyl Emission, Microwave Emission, Stellar Models, Variable Stars, Astrophysics, Cosmic Dust, Stellar Envelopes, Stellar Radiation

Scientific paper

A model for the transient 1720-MHz OH emission from the direction of the peculiar star V1057 Cyg is constructed. Its main features are that: the emission comes from a region of high density at a distance of 100 AU from the star; the region is heated by stellar radiation acting on dust grains and is cooled by CO line emission; the 1720-MHz emitting levels are inverted by collisions with H2 molecules.

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