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Detection of SiO Maser Emission in V838 Mon

Shuji Deguchi·Noriyuki Matsunaga·Hinako Fukushi
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Abstract

We report on the detection of 43 GHz SiO maser emission in V838 Mon, a prototype of a new class of eruptive variables, in which a red supergiant was formed after the nova-like eruption in 2002. The detection of SiO masers indicates that the star formed after the eruption is indeed a kind of cool mass-losing object with circumstellar masers. The measured radial velocity and the intensity of maser emission are consistent with the object being located at the distance of about 7 kpc from the sun. It also suggests that a considerable percentage of SiO masing objects in the Galaxy are formed in the same mechanism as that created V838 Mon.

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Shuji Deguchi, Noriyuki Matsunaga, Hinako Fukushi. 2005-07-15. Detection of SiO Maser Emission in V838 Mon. https://doi.org/10.1093/pasj%2F57.5.l25

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