Detection of the (29)SiO V = 1, J = 1-0 maser from TX Camelopardalis

Details Detection of the (29)SiO V = 1, J = 1-0 maser from TX Camelopardalis Detection of the (29)SiO V = 1, J = 1-0 maser from TX Camelopardalis

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995pasj...47l...1c&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264), vol. 47, no. 1, p. L1-L4

Astronomy and Astrophysics

Astronomy

10

Emission Spectra, Line Spectra, Masers, Mira Variables, Radio Astronomy, Radio Spectra, Silicon Compounds, Silicon Isotopes, Stellar Envelopes, Extremely High Frequencies, Maser Pumping, Millimeter Waves, Red Shift, Stellar Models

Scientific paper

The maser emission from the v = 1, J = 1-0 transition of (29)SiO has been detected for the first time toward the Mira variable star TX Cam among 54 surveyed late-type stars. The line was fairly narrower than the (29)SiO v = 0, J = 1-0 transition, and slightly redshifted compared to the v = 0 line. In addition, the (28)SiO v = 2, J = 2-1 transition has also been newly detected in this star. Based on the line intensity, the pumping mechanism for the (29)SiO v = 1, J = 1-0 maser is discussed. The simple large velocity-gradient model and the line overlap of H2O can not be adopted for this maser.

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