A Long-term Photometric Study of the Near-contact Binary RU Ursae Minoris

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4

Stars

Scientific paper

New CCD photometric observations of the near-contact binary RU UMi were obtained from1999 December to 2000 April and later during 2003 March. All available times of minimum light, including our own measurements, have been examined and indicate that the orbital period of the system has experienced a continuous period decrease with a rate of M=-6.0×10 M yr. Historical light curves of RU UMi over a 32-yr interval display variably asymmetrical secondary minima. From analyses of velocity and light curves and of the light curves alone, the light variations are best represented by a variable cool spot that has consistently existed on the inner hemisphere of the secondary component. There is a weak indication that the hot star is no longer a main sequence one.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A Long-term Photometric Study of the Near-contact Binary RU Ursae Minoris 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 A Long-term Photometric Study of the Near-contact Binary RU Ursae Minoris, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Long-term Photometric Study of the Near-contact Binary RU Ursae Minoris will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1580771

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.