Molecular line observations of the SiO maser source IRAS 19312+1950
نویسندگان
چکیده
منابع مشابه
SiO Maser Survey of Cold IRAS Sources
We present the results of observations of cold IRAS sources in the Galactic disk area, −10 < l < 100 and |b|< 5, in the SiO J = 1–0, v = 1 and 2 maser lines. SiO masers were detected in 51 out of 143 observed sources; 45 were new detections in SiO masers. The selected IRAS sources were objects with dust temperatures of between 160 and 280 K. According to a confirmation using 2MASS near-infrared...
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We report the results of mapping observations of the bipolar nebula with SiO maser emission, IRAS 19312+1950, in the CO (J = 1–0 and J = 2–1), CO (J = 1–0 and J = 2–1), CO (J = 1–0), CS (J = 2–1), SO (JK = 32– 21) and HCO + (J = 3–2) lines with the Berkeley-Illinois-Maryland Association array. Evolutional status of this source has been evoking a controversy since its discovery, though SiO maser...
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We present 86.8 GHz SiO J=2-1 observations of the molecular outflow from the protostellar source NGC 1333 IRAS 2A. Silicon monoxide is a sensitive tracer of shocks in molecular gas, and the emission clearly traces terminal bow-shocks at the ends of the outflow lobes, as well as emission knots and a source coincident with the protostar. Our three-field mosaic from the BIMA interferometer covers ...
متن کاملSiO maser observations of a wide dust-temperature range sample
We present the results of SiO line observations of a sample of known SiO maser sources covering a wide dust-temperature range. The aim of the present research is to investigate the causes of the correlation between infrared colors and SiO maser intensity ratios among different transition lines. We observed in total 75 SiO maser sources with the Nobeyama 45m telescope quasi-simultaneously in the...
متن کاملObservations of Stellar Maser Sources with no IRAS Counterpart
We investigated stellar maser sources with no IRAS counterpart at the radio, middle-infrared, and nearinfrared wavelengths. A 43 GHz SiO maser search for 120 2MASS/MSX objects, and 10 OH 1612 MHz sources with no or a very faint MSX counterpart, resulted in 43 SiO detections: one OH 1612 MHz source, 2 near-infrared stars, and 40 MSX sources. Additional near-infrared J-, H-, and K-band observatio...
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ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2008
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921308021467