Irregular structure of the envelope around the carbon-rich star TX PSC

Details Irregular structure of the envelope around the carbon-rich star TX PSC Irregular structure of the envelope around the carbon-rich star TX PSC

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...218l...5h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 218, no. 1-2, July 1989, p. L5-L8.

Astronomy and Astrophysics

Astrophysics

27

Carbon Stars, Late Stars, Stellar Envelopes, Variable Stars, Astronomical Maps, Carbon Monoxide, Radio Emission

Scientific paper

Circumstellar envelopes of six oxygen and carbon rich late-type stars were resolved by mapping with the 30m IRAM telescope in the (2-1) and (1-0) transitions of carbon monoxide. In the envelope around the carbon rich star TX Psc, local density enhancements, clumps, were detected which are interpreted as evidence for erratic outflow of matter in the envelope of the semiregular variable. The ratios of CO(2-1) to CO(1-0) antenna temperatures lie between 0.5 and 1.5 indicating that some of the CO emission regions are extended relative to the telescope beams.

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