Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978ap%26ss..53..345a&link_type=abstract
Astrophysics and Space Science, vol. 53, no. 2, Feb. 1978, p. 345-370. Research supported by the Consiglio Nazionale delle Rice
Astronomy and Astrophysics
Astrophysics
8
Eclipsing Binary Stars, Stellar Spectrophotometry, Balmer Series, K Lines, Radial Velocity, Stellar Spectra, Supergiant Stars
Scientific paper
Seventeen coude spectrograms (dispersion 20 A per mm) of the beta Lyrae-type eclipsing binary V 367 Cygni (P equals 18.6 d) have been studied. The observations were made at the Haute Provence Observatory during a period of almost two years (May 1973-March 1975). An anomalous behavior for the radial velocities of the spectrograms taken during one cycle (406) was observed; it is suggested that gas eruption under form of prominences may explain it. The spectrum is dominated by shell lines very similar to those present in the spectrum of the supergiant A9 Ia Epsilon Aurigae. The underlying stellar spectrum is classified as A5 I on the basis of the intensity of the sole clearly visible stellar line, lambda 4481 Mg II, of the wings of the stellar Balmer lines, and an estimate of the intensity of the stellar K line. The radial velocity curves for the shell lines of Ca II, H I, metallic ions and neutral iron, as well as the phase dependence of the microturbulence, indicate stratification in the shell.
Aydin Cemal
Hack Margherita
Yilmaz Nihal
No associations
LandOfFree
Spectroscopic study of the eclipsing binary V 367 Cygni 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 Spectroscopic study of the eclipsing binary V 367 Cygni, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectroscopic study of the eclipsing binary V 367 Cygni will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1034064