The Spectroscopic Orbit of φ Cygni, a System with Two Late-Type Giants

Details The Spectroscopic Orbit of φ Cygni, a System with Two Late-Type Giants The Spectroscopic Orbit of φ Cygni, a System with Two Late-Type Giants

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004rmxac..21...63f&link_type=abstract

The Environment and Evolution of Double and Multiple Stars, Proceedings of IAU Colloquium 191, held 3-7 February, 2002 in Merida

Astronomy and Astrophysics

Astronomy

Binaries: Close, Binaries: Spectroscopic

Scientific paper

Improved orbital elements for φ Cygni have been determined from 47 new high-dispersion spectroscopic observations. The period and eccentricity are 434.14 days and 0.559, respectively. Minimum masses plus the inclination of the visual orbit result in masses of 2.16 and 2.06 Msun for the two giants. The small magnitude difference of 0.25 mag and a mass ratio of 1.044 indicate that both giants are most likely in the helium-burning phase of their evolution.

Affiliated with

Also associated with

No associations

Rating

The Spectroscopic Orbit of φ Cygni, a System with Two Late-Type Giants 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 Spectroscopic Orbit of φ Cygni, a System with Two Late-Type Giants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Spectroscopic Orbit of φ Cygni, a System with Two Late-Type Giants will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1188875