The molecular envelope of Mira

Details The molecular envelope of Mira The molecular envelope of Mira

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...351..263p&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 351, March 1, 1990, p. 263-270. Research supported by CAICYT.

Astronomy and Astrophysics

Astrophysics

32

Mira Variables, Stellar Envelopes, Stellar Evolution, Abundance, Astronomical Spectroscopy, Emission Spectra, Radial Velocity, Stellar Mass Ejection

Scientific paper

The CO J = 2 - 1 and J = 0 emission of the circumstellar envelope of Mira has been mapped. Three velocity components are found at 44.0, 46.8, and 48.1 km/s. The emission is interpreted as arising from a standard circumstellar envelope and a less extended bipolar outflow. The spherical circumstellar envelope has an expansion velocity of 3 km/s, a mass-loss rate of 1 x 10 to the -7th solar mass/yr, and a total molecular mass of 0.0004 solar mass.

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