Variations of the v=0, 1, 2, and 3, J=1-0 SiO Masers of Mira

Details Variations of the v=0, 1, 2, and 3, J=1-0 SiO Masers of Mira Variations of the v=0, 1, 2, and 3, J=1-0 SiO Masers of Mira

Feb 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006apj...638l..41m&link_type=abstract

The Astrophysical Journal, Volume 638, Issue 1, pp. L41-L43.

Astronomy and Astrophysics

Astronomy

5

Stars: Circumstellar Matter, Masers, Stars: Individual: Constellation Name: Ο Ceti

Scientific paper

The v=0, 1, 2, and 3, J=1-0 SiO maser spectra of Mira have been observed with high phase resolution over approximately 2.6 periods of the star. These observations represent the first reported monitoring of the v=0 emission over multiple stellar periods. A time cross-correlation analysis indicates that the variations in the emission of the v=1 and v=0 states were coincident to 0.066 or less of a phase period. The variations of the v=1 and v=2 emissions were coincident to less than 0.033 of a phase period. The v=0 emission generally had relatively low contrast between its maximum and minimum and had several relative maxima during a stellar period. The relative minima varied by vibrational state. The v=3 emission was only observed once during these observations, at a time when the v=2 emission was near its absolute maximum. These observations further constrain possible models of maser pumping.

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