Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...130..341m&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 130, no. 2, Jan. 1984, p. 341-347. Research supported by the European Southern
Astronomy and Astrophysics
Astrophysics
30
Late Stars, Stellar Envelopes, Stellar Mass Ejection, Stellar Spectrophotometry, Brightness, Charge Coupled Devices, Data Reduction
Scientific paper
Surface brightness photometric measurements of the Betelgeuse circumstellar shell at K I 7699 A were observed with a Fabry-Perot etalon and a CCD camera. Emission strength decreased as r exp -3.5 + or - 0.8, where r is the distance from the star. Also noted was that the emission strength, related to the mass-loss rate, and the slope of the decreasing intensity, related to the K I ionization and the density distribution, did not agree with values obtained by Honeycutt et al. (1980), but did concur with the model of Jura by Morris (1981). A mass-loss rate of 4 x 10 to the -6th solar mass/year was presented and the carbon scarcity in the shell was decreased to a factor of six. A slight departure from symmetry was found and tentatively attributed to photospheric brightness asymmetry.
Dreux Michel
Fauconnier Thierry
Fort Bernard
Lamy Philippe
Mauron Nicolas
No associations
LandOfFree
The Betelgeuse shell - CCD/Fabry-Perot surface brightness photometry at K I 7699 A and mass loss 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 The Betelgeuse shell - CCD/Fabry-Perot surface brightness photometry at K I 7699 A and mass loss, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Betelgeuse shell - CCD/Fabry-Perot surface brightness photometry at K I 7699 A and mass loss will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-935149