Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993azh....70..523b&link_type=abstract
Astronomicheskij Zhurnal (ISSN 0004-6299), vol. 70, no. 3, p. 523-530.
Astronomy and Astrophysics
Astronomy
6
Brightness Distribution, Carbon Stars, Lunar Occultation, Stellar Envelopes, Stellar Models, Stellar Structure
Scientific paper
Results of the processing of near-IR lunar-occultation observations of the carbon star T Cnc, performed by Richichi et al. (1991) with the 1.5-m TIRGO telescope, are presented. Consideration is given to two models of the brightness distribution across the stellar disk: a model with linear limb-darkening for a plane-parallel atmosphere and a model with a monotonic darkening for a spherically symmetric extended atmosphere. It is shown that neither model is consistent with the observed occultation curve. The strip brightness distribution, which is retrieved by a model-independent regularization method, confirms the presence of a compact, optically thin circumstellar envelope. The results are compared with calculations of models of dust envelopes of carbon stars.
Bogdanov Mikhail B.
Cherepashchuk Anatol M.
No associations
LandOfFree
Structure of the shell of the carbon star T CANCRI from lunar occultation observations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Structure of the shell of the carbon star T CANCRI from lunar occultation observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structure of the shell of the carbon star T CANCRI from lunar occultation observations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1736172