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Shuji Deguchi, Noriyuki Matsunaga, Hinako Fukushi, Detection of SiO Maser Emission in V838 Mon, Publications of the Astronomical Society of Japan, Volume 57, Issue 5, 25 October 2005, Pages L25–L28, https://doi.org/10.1093/pasj/57.5.L25
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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 a 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 a distance of about 7 kpc from the sun. It also suggests that a considerable percentage of SiO masing objects in the Galaxy are formed by the same mechanism as that which created V838 Mon.