The Characteristic Lifetime of Mira's SiO Maser Features

Details The Characteristic Lifetime of Mira's SiO Maser Features The Characteristic Lifetime of Mira's SiO Maser Features

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aas...212.1205b&link_type=abstract

American Astronomical Society, AAS Meeting #212, #12.05; Bulletin of the American Astronomical Society, Vol. 40, p.205

Astronomy and Astrophysics

Astronomy

Scientific paper

Silicon monoxide maser spectra of the long period variable star Mira have been observed for over five stellar periods in the v = 1, J = 1 - 0 transition. The polarization parameters of the spectra were extracted and correlated between epochs to find a characteristic maser lifetime. The lifetime was calculated to be 470 days. The 470 day characteristic lifetime is considerably longer than Mira's optical variation period of 332 days. This comparison suggests that the masers are independent of stellar phase. This research has been supported by NSF Grant AST-0606764.

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