Copernicus observations of Betelgeuse and Antares

Details Copernicus observations of Betelgeuse and Antares Copernicus observations of Betelgeuse and Antares

Apr 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975stin...7524598b&link_type=abstract

Unknown

Other

Oao 3, Satellite Observation, Supergiant Stars, Emission Spectra, Line Spectra, Stellar Envelopes

Scientific paper

Copernicus observations of the M-supergiants, alpha Ori and alpha Sco, are presented. The MgII h and k resonance lines are strongly in emission in both stars. The k line is highly asymmetric in both stars but the h line is symmetric. Upper limits for several other resonance lines are given for alpha Ori. The possibility is explored that the k line asymmetry is caused by overlying resonance lines of MnI and FeI formed in the cool circumstellar gas shells around these stars. Observations of the MnI 4030-4033 A lines are used to show that circumstellar shell absorption is too weak to explain the asymmetry. It is suggested that the absorption occurs in a cool turbulent region between the base of the circumstellar shell and the top of the chromosphere.

Affiliated with

Also associated with

No associations

Rating

Copernicus observations of Betelgeuse and Antares 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 Copernicus observations of Betelgeuse and Antares, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Copernicus observations of Betelgeuse and Antares will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-949274