SiO maser emission from OH/IR stars close to the Galactic centre

Details SiO maser emission from OH/IR stars close to the Galactic centre SiO maser emission from OH/IR stars close to the Galactic centre

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...250..431l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 250, no. 2, Oct. 1991, p. 431-436. Research supported by NFR.

Astronomy and Astrophysics

Astrophysics

18

Galactic Nuclei, Hydroxyl Emission, Infrared Stars, Interstellar Masers, Maser Outputs, Silicon Oxides, Milky Way Galaxy, Stellar Envelopes, Variable Stars

Scientific paper

Forty-three- and 86-GHz SiO maser emission is explored simultaneously from a sample of 31 OH/IR stars close to the Galactic center. Eleven envelopes were detected in the 43-GHz transitions and two solely in the v = 2 transition. Only upper limits were obtained at 86 GHz. Luminosities were obtained in the intervals (70-380) x 10 exp 42 and (80-370) x 10 exp 42 photon/s for v = 1 and v = 2, respectively. These luminosities are compared with those of seven OH/IR stars in the Galactic disk. No significant difference is found between the luminosity distributions of the two stellar samples, given the small number of objects. The luminosity of the v = 2 line is on the average about 1.5 times stronger than the luminosity of the v = 1 line. The upper limits of the 86-GHz data compared to the detected 43 GHz data suggest that the 86-GHz maser is weaker than the 43-GHz maser. The line widths and the line profiles are comparable to many of the simple structure spectra observed in ordinary Miras.

Affiliated with

Also associated with

No associations

Rating

SiO maser emission from OH/IR stars close to the Galactic centre does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with SiO maser emission from OH/IR stars close to the Galactic centre, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SiO maser emission from OH/IR stars close to the Galactic centre will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1874603