Measure of the grain velocity structure in the circumstellar envelope 'Frosty Leo'

Details Measure of the grain velocity structure in the circumstellar envelope 'Frosty Leo' Measure of the grain velocity structure in the circumstellar envelope 'Frosty Leo'

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...253..464d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 253, no. 2, Jan. 1992, p. 464-474.

Astronomy and Astrophysics

Astrophysics

11

Asymptotic Giant Branch Stars, Stellar Envelopes, Stellar Mass Ejection, Velocity Distribution, Nebulae, Radiative Transfer

Scientific paper

Results are presented of measurements, based on high-resolution long-slit spectroscopic observations, of the radial velocity structure of the circumstellar envelope surrounding the late-type star IRAS 09371 + 1212 (Frosty Leo nebula). The velocities observed, referred to the CO dynamic center, range from 4 to 15 km/sec. In contrast to the symmetry of the brightness profile, the velocity profile of the nebula exhibits a marked asymmetry.

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