Periodic spectrum variations in helium-rich stars

Details Periodic spectrum variations in helium-rich stars Periodic spectrum variations in helium-rich stars

Apr 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982pasp...94..322w&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 94, Apr. 1982, p. 322-327.

Astronomy and Astrophysics

Astronomy

16

H Alpha Line, Helium, Periodic Variations, Radio Sources (Astronomy), Stellar Spectra, Stellar Spectrophotometry, Variable Stars, Absorption Spectra, Emission Spectra, Line Spectra, Radial Velocity, Silicon, Spectral Line Width

Scientific paper

Spectroscopic observations of four helium-rich stars are presented. In HD 37776, antiphase variations of Si III and He I have been found, which represent another point of similarity to the Ap phenomenon. The remarkable H-alpha emission variations in Sigma Ori E are illustrated with uniform phase coverage, and strict periodicity over a five-year interval is shown. A radial-velocity study of HD 64740 shows constancy to within the accuracy of the observations. Finally, Delta Ori B is confirmed as a helium-rich star.

Affiliated with

Also associated with

No associations

Rating

Periodic spectrum variations in helium-rich stars 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 Periodic spectrum variations in helium-rich stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Periodic spectrum variations in helium-rich stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-843464