The old-nova GK Per /1901/. I - Determination of the orbital period

Details The old-nova GK Per /1901/. I - Determination of the orbital period The old-nova GK Per /1901/. I - Determination of the orbital period

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....99..392b&link_type=abstract

Astronomy and Astrophysics, vol. 99, no. 2, June 1981, p. 392, 393. Research supported by the Consiglio Nazionale delle Ricerch

Astronomy and Astrophysics

Astrophysics

18

H Alpha Line, Novae, Orbital Elements, Stellar Motions, Eccentric Orbits, Radial Velocity, Stellar Spectra

Scientific paper

The orbital period of the old nova GK Per (1901), which is characterized by a particularly long orbital period, the presence of a K2 IV component in its spectrum, strong luminosity fluctuations at minimum, transient X-ray emission, and an asymmetrical expanding envelope, is determined. The H-alpha radial velocity curve of the star is derived from high-resolution echelle spectrograms obtained in the region 6100-7100 A with a mean dispersion of 16.1 A/mm. The data is fit by an orbit with a period of 1.904 days and an accentricity of 0.39, in an agreement with that determined by Kraft (1964) and in contrast to the generally accepted period of 0.685 days given by Paczynski (1965). The amplitude of the radial velocity curve suggests a mass ratio of about 1.5.

Affiliated with

Also associated with

No associations

Rating

The old-nova GK Per /1901/. I - Determination of the orbital period 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 old-nova GK Per /1901/. I - Determination of the orbital period, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The old-nova GK Per /1901/. I - Determination of the orbital period will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-990890