G305.8 - 0.2 water vapor source - A young object
| Autor: | J. W. S. Vilas Boas, C. G. Sanzovo, E. Scalise |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Physics
Astrophysics::High Energy Astrophysical Phenomena Astronomy and Astrophysics Astrophysics Silicon monoxide law.invention chemistry.chemical_compound chemistry Space and Planetary Science law Astrophysics::Solar and Stellar Astrophysics Protostar OH/IR star Maser Stellar evolution Astrophysics::Galaxy Astrophysics Water vapor Excitation |
| Zdroj: | The Astronomical Journal. 102:1734 |
| ISSN: | 0004-6256 |
| DOI: | 10.1086/115994 |
| Popis: | Observations of water vapor and silicon monoxide masers were conducted in the direction of G305.8−0.2. No SiO maser emission above 7 Jy of flux density was detected. The short-time variability of the H 2 O maser together with the absence of compact radio continuum emission suggests that the excitation energy of the maser could originate from an O7-O9 protostar in its earlier evolutionary stages |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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