Physical conditions around Orion IRc2 as probed by various masers

Details Physical conditions around Orion IRc2 as probed by various masers Physical conditions around Orion IRc2 as probed by various masers

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...206..117z&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 206, no. 1, Nov. 1988, p. 117-120. Research supported by the Chinese Academy o

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Astronomical Models, Infrared Sources (Astronomy), Interstellar Masers, Orion Constellation, Computational Astrophysics, Hydroxyl Emission, Methyl Alcohol, Silicon Oxides, Velocity Distribution, Water Masers

Scientific paper

The large velocity gradient model is used to study the physical conditions required to fit the observations of SiO, H2O, OH and CH3OH masers. The calculations support the argument that the 18 km s-1 outflow seen in SiO, H2O and OH maser emissions can be attributed to the compact infrared source IRc 2. Adopting a multi-shell model the mass loss rate and the luminosity of IRc 2 are estimated at 10-3M_sun;yr-1 and 104L_sun;. In a size of 1017cm, it corresponds to a lifetime of over 2×103yr and a mass of at least 2 M_sun;.

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