The photoproduction of circumstellar OH maser shells

Details The photoproduction of circumstellar OH maser shells The photoproduction of circumstellar OH maser shells

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982aj.....87.1828h&link_type=abstract

Astronomical Journal, vol. 87, Dec. 1982, p. 1828-1835. Research supported by the Research Corp. and New York University;

Astronomy and Astrophysics

Astronomy

78

Hydroxyl Radicals, Interstellar Masers, Photoproduction, Stellar Envelopes, Particle Density (Concentration), Radii, Stellar Evolution, Stellar Mass Ejection, Stellar Temperature

Scientific paper

The structure of OH shells formed from the photodestruction of H2O by ambient UV photons in the thick, expanding envelopes around cool evolved stars is investigated. The properties of the shells are governed mainly by the envelope shielding which in turn is primarily controlled by the mass-loss rate M. The peak OH densities and column densities through the shells are, respectively, slowly decreasing and increasing functions of M. The characteristic radii of the shells also depend on M, increasing from about 4(15) cm for M = 1(-6) solar mass/yr to about 1(17) cm for M = 1(-4) solar mass/yr; this dependence is well matched by recent observational data, and lends support to the OH photoproduction mechanism.

Affiliated with

Also associated with

No associations

Rating

The photoproduction of circumstellar OH maser shells 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 The photoproduction of circumstellar OH maser shells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The photoproduction of circumstellar OH maser shells will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-927620