The systemic velocity of beta Lyrae

Details The systemic velocity of beta Lyrae The systemic velocity of beta Lyrae

Apr 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975pasp...87..237b&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 87, Apr. 1975, p. 237-244.

Astronomy and Astrophysics

Astronomy

10

Eclipsing Binary Stars, Orbital Elements, Radial Velocity, Stellar Spectra, Variable Stars, Circular Orbits, Line Spectra, Orbit Calculation, Tables (Data)

Scientific paper

Radial velocities of beta Lyr are determined from spectrograms obtained at Victoria, Canada, from 1966 to 1974. Individual stellar velocities and phases are calculated, and the radial velocities are found to be well satisfied by an assumed circular orbit with a systemic velocity of about -17.8 km/sec and a velocity of 184.0 km/sec for the primary component, provided that account is taken of the changing period in calculating the phases and the velocity measurements are made only from the Si II lines. Previous reports indicating variations in the value of the systemic velocity are discussed, and it is shown that the reported variations may be due to the use of unreliable spectral lines for velocity measurement, small systematic differences between spectrographs, and possible occasional distortion of the velocity curve.

Affiliated with

Also associated with

No associations

Rating

The systemic velocity of beta Lyrae 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 The systemic velocity of beta Lyrae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The systemic velocity of beta Lyrae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-948878