Spectroscopic binary orbits from ultraviolet radial velocities. VIII - LZ Cephei (HD 209481)

Details Spectroscopic binary orbits from ultraviolet radial velocities. VIII - LZ Cephei (HD 209481) Spectroscopic binary orbits from ultraviolet radial velocities. VIII - LZ Cephei (HD 209481)

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991obs...111..167h&link_type=abstract

The Observatory (ISSN 0029-7704), vol. 111, no. 1103, p. 167-178.

Astronomy and Astrophysics

Astronomy

16

Binary Stars, Cepheid Variables, Radial Velocity, Stellar Orbits, Stellar Spectra, Ultraviolet Astronomy, Iue, Light Curve

Scientific paper

We present a study of the double-lined spectroscopic binary LZ Cep based on high-resolution IUE spectra. We determine the radial velocities by using a cross-correlation technique incorporating profile fitting; this allows measurements of velocity separations down to unusually small values. The final velocity curve has a small but significant eccentricity. By considering other constraints, we construct a model for the system, which correctly predicts the light curve; in the model, the secondary fills its critical equipotential lobe. The secondary is conspicuously overluminous for its mass, and must have reached its present configuration following a phase of case A mass transfer.

Affiliated with

Also associated with

No associations

Rating

Spectroscopic binary orbits from ultraviolet radial velocities. VIII - LZ Cephei (HD 209481) 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 binary orbits from ultraviolet radial velocities. VIII - LZ Cephei (HD 209481), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectroscopic binary orbits from ultraviolet radial velocities. VIII - LZ Cephei (HD 209481) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1306469