Nature of OH maser and SiO thermal emission towards carbon star IRAS
05373-0810 (V1187 Ori).
Szczerba R., Chen P.S., Szymczak M., Omont, A.
2002, A&A, 381, 491
Abstract:
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We present observational evidence that IRAS 05373-0810 is a genuine carbon
star with an ISO SWS spectrum closely resembling that of R Scl. Modelling
of the spectral energy distribution of IRAS 05373$-$0810 suggests that
the star has luminosity of order of 8000 Lo and loses mass at a rate of
about 2-3 10^{-7} Mo/yr. The detected OH maser emission at 1612, 1665 and
1667 MHz and SiO thermal emission at 86.85 GHz towards IRAS 05373-0810
is not associated with this source. The available observations imply that
these lines, typical for O-rich sources, come from the molecular cloud
L 1641 in the Orion star forming region (OH) and, very likely, from the
NGC 2149 molecular complex (SiO).
PDF version of this paper is available:
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