SIMBAD references

1996A&A...313L..13G - Astronomy and Astrophysics, volume 313, L13-16 (1996/9-3)

Detection of 29SiO v=3 J=8->7 maser emission: a new IR SiO overlap.


Abstract (from CDS):

We have performed detailed radiative transfer calculations which show that, in circumstellar envelopes of late-type stars, some submillimeter rotational transitions of 29SiO and 30SiO can be inverted with amplification high enough to be detected. The pumping mechanism is due to overlaps between ro-vibrational lines of the three stable SiO isotopomers. We present the detection of one of these lines, the v=3 J=8-7 transition of 29SiO, in four circumstellar sources. This is the highest frequency SiO maser detected up to date, and provides a strong confirmation of infrared SiO overlaps as efficient pumping agents of SiO masers.

Abstract Copyright:

Journal keyword(s): Masers - Radiative transfer - Stars: AGB - circumstellar matter - Stars: late-type

CDS comments: p.L15 : truncated OH designations not in SIMBAD

Simbad objects: 21

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