Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26as...62..279a&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 62, Nov. 1985, p. 279-290. Research supported by The Citadel
Astronomy and Astrophysics
Astrophysics
19
A Stars, B Stars, Peculiar Stars, Stellar Spectrophotometry, Variable Stars, Absorption Spectra, Helium, Line Spectra, Main Sequence Stars, Tables (Data)
Scientific paper
Optical region spectrophotometry of λλ3300 - 7850 has been obtained for three helium rich stars, HR 1890, σ Ori E, and HD 37776, of the Orion OB1 association. New uvbyβ photometry of HR 1890 and HD 37776 as well as published data are also used to investigate the variability of these stars. A new period of 1.53862 days was determined for HD 37776. For all three stars Hβ varies in antiphase with strong He I lines. The spectrophotometric bandpass containing the strong He I line λ4471 varies in phase with the R index of Pedersen and Thomsen. Evidence is found for weak absorption features which appear to be an extension of the λ5200 feature seen in cooler CP stars.
Adelman Saul J.
Pyper Diane M.
No associations
LandOfFree
Spectrophotometry of peculiar B and A stars. XVIII - The helium rich variable stars HR 1890, Sigma Orionis E, and HD 37776 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 Spectrophotometry of peculiar B and A stars. XVIII - The helium rich variable stars HR 1890, Sigma Orionis E, and HD 37776, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectrophotometry of peculiar B and A stars. XVIII - The helium rich variable stars HR 1890, Sigma Orionis E, and HD 37776 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-977612