Pulsations and apsidal motion in the eclipsing variable system DI Herculis

Details Pulsations and apsidal motion in the eclipsing variable system DI Herculis Pulsations and apsidal motion in the eclipsing variable system DI Herculis

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009astl...35..483k&link_type=abstract

Astronomy Letters, Volume 35, Issue 7, pp.483-493

Astronomy and Astrophysics

Astronomy

2

Scientific paper

In 2003-2008, highly accurate photoelectric and CCD observations of the close binary system DI Her were performed in the V band. The light curves of three primary and three secondary eclipses were constructed. These observations, along with the highly accurate photoelectric observations of other authors obtained in different years from 1963 to 1986, have confirmed the difference between the observed (1{./o}3 ± 0{./o}1/100 yr) and theoretical (4{./o}3/100 yr) rates of apsidal motion. Our photometric data are indicative of a possible variability in the system with period P' = 1.175 days and amplitude A' = 0{./ m }011, which is probably related to the pulsations of one of the components. There may be a third body in the system that produces in-phase variations in the times of primary and secondary minima with a period of 10.5 yr and an amplitude of 1{./ m }5.

Affiliated with

Also associated with

No associations

Rating

Pulsations and apsidal motion in the eclipsing variable system DI Herculis 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 Pulsations and apsidal motion in the eclipsing variable system DI Herculis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulsations and apsidal motion in the eclipsing variable system DI Herculis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1781354