Photometric and spectroscopic investigation of carbon stars. I - A speculation about the nature of the light and radial velocity variations of UX Dra. II - A comparison of the light and radial velocity changes of Y CVn

Details Photometric and spectroscopic investigation of carbon stars. I - A speculation about the nature of the light and radial velocity variations of UX Dra. II - A comparison of the light and radial velocity changes of Y CVn Photometric and spectroscopic investigation of carbon stars. I - A speculation about the nature of the light and radial velocity variations of UX Dra. II - A comparison of the light and radial velocity changes of Y CVn

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984baicz..35...65v&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 35, March 1984, p. 65-74.

Astronomy and Astrophysics

Astronomy

4

Carbon Stars, Eclipsing Binary Stars, Light Curve, Radial Velocity, Stellar Spectrophotometry, Velocity Distribution, Absorption Spectra, Astronomical Photography, Astronomical Spectroscopy, Electrophotometers, Molecular Spectra, Stellar Rotation, Swan Bands

Scientific paper

The photoelectric light curves for the carbon star UX Dra were derived in three colours. Their shape suggests the light curve of an eclipsing binary. The period variations of the star are analyzed on the basis of old photographic observations. The radial velocity curve of the star exhibits a minimum preluding the primary light minima by about 0.15 P. The period P is 336 days. The total absorption in the Swan molecular bands in dependence on the light phase of the star is investigated. The period of variability in molecular absorption equals the period of the radial velocity curve. Three possible mechanisms are considered to explain the light, radial velocity and molecular absorption changes of the star: radial pulsations, rotation of a heterogeneous single star, and occultations of two revolving components.

Affiliated with

Also associated with

No associations

Rating

Photometric and spectroscopic investigation of carbon stars. I - A speculation about the nature of the light and radial velocity variations of UX Dra. II - A comparison of the light and radial velocity changes of Y CVn 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 Photometric and spectroscopic investigation of carbon stars. I - A speculation about the nature of the light and radial velocity variations of UX Dra. II - A comparison of the light and radial velocity changes of Y CVn, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photometric and spectroscopic investigation of carbon stars. I - A speculation about the nature of the light and radial velocity variations of UX Dra. II - A comparison of the light and radial velocity changes of Y CVn will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1040274