Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....54..167z&link_type=abstract
Astronomy and Astrophysics, vol. 54, no. 1, Jan. 1977, p. 167-173. Research supported by the Nederlandse Organisatie voor Zuive
Astronomy and Astrophysics
Astrophysics
20
Binary Stars, Light Curve, Stellar Spectrophotometry, Supergiant Stars, Ubv Spectra, X Ray Sources, Astronomical Spectroscopy, Color Photography, Luminous Intensity, Mass Ratios, Monochromatic Radiation
Scientific paper
Extended photometric observations of HD 77581, the optical counterpart of the X-ray source Vela X-1, in the Stromgren four-color system are discussed. These observations show changes in the light curve from one orbital period to another. A regular double-wave variation of the color index c1 (and possibly b-y) is observed. These observations are consistent with light and color variations predicted from a model of a tidally distorted rotating primary, using orbital parameters derived from spectroscopic observations.
Hammerschlag-Hensberge Godelieve
Hensberge Herman
Paradijs Jan van
Sterken Christiaan
Zuiderwijk E. J.
No associations
LandOfFree
Four colour photometric observations of the X-ray binary star HD 77581 /Vela X-1/. II - Analysis of the light curve 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 Four colour photometric observations of the X-ray binary star HD 77581 /Vela X-1/. II - Analysis of the light curve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Four colour photometric observations of the X-ray binary star HD 77581 /Vela X-1/. II - Analysis of the light curve will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-951369