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Preliminary results on SiO v=3 J=1−0 maser emission from AGB stars

J.-F. Desmurs ; V. Bujarrabal ; Michael Lindqvist (Institutionen för rymd- och geovetenskap, Onsala rymdobservatorium) ; J. Alcolea ; R. Soria-Ruiz ; Per Bergman (Institutionen för rymd- och geovetenskap, Onsala rymdobservatorium)
Proceedings of the International Astronomical Union; Cosmic Masers - from OH to Ho (1743-9213). Vol. 8 (2012), S287, p. 252 - 253.
[Konferensbidrag, övrigt]

We present the results of SiO maser observations at 43 GHz toward two AGB stars using the VLBA. Our preliminary results on the relative positions of the different J=1–0 SiO masers (v=1,2 and 3) indicate that the current ideas on SiO maser pumping could be wrong at some fundamental level. A deep revision of the SiO pumping models could be necessary.

Nyckelord: Maser; AGB stars


J.-F. Desmurs, V. Bujarrabal, M. Lindqvist, J. Alcolea, R. Soria-Ruiz and P. Bergman (2012). Preliminary results on SiO v=3 J=1−0 maser emission from AGB stars. Proceedings of the International Astronomical Union, 8, pp 252-253 doi:10.1017/S1743921312007065



Denna post skapades 2012-10-31. Senast ändrad 2014-09-02.
CPL Pubid: 165358

 

Institutioner (Chalmers)

Institutionen för rymd- och geovetenskap, Onsala rymdobservatorium (2010-2017)

Ämnesområden

Astronomi, astrofysik och kosmologi

Chalmers infrastruktur