Maser-line evidence for disk envelopes around young stars

Details Maser-line evidence for disk envelopes around young stars Maser-line evidence for disk envelopes around young stars

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pazh....9..463g&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 9, July-Aug. 1983, p. 463-468) Soviet Astronomy Letters (ISSN 0360-0327), vol. 9, July-

Astronomy and Astrophysics

Astronomy

2

Accretion Disks, Interstellar Masers, Protostars, Radio Sources (Astronomy), Stellar Envelopes, Stellar Evolution, Binary Stars, Early Stars, Kepler Laws, Silicon Oxides, Stellar Rotation, Very Long Base Interferometry, Water Masers

Scientific paper

Observational profiles of the SiO and H2O maser lines in the sources connected with star formation regions are analysed on the basis of the theoretical profiles corresponding to different stages of an axial-symmetric collapse. A number of sources whose profiles have special features typical of the accretion motions and of the quasi-Kepler rotation is selected. Since the objects are young it is supposed that in these cases either the early phases of the protoplanetary disc formation or disc-like envelopes connected with the formation of binary systems are observed.

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