Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007chjaa...7..251z&link_type=abstract
Chinese Journal of Astronomy and Astrophysics, Volume 7, Issue 2, pp. 251-257 (2007).
Astronomy and Astrophysics
Astrophysics
4
Techniques: Photometric, Binaries: Eclipsing, Stars: Individual: Uu Lyncis
Scientific paper
The near-contact binary UU Lyn with an F3V-type primary was observed in 2005 and 2006. With the latest version of the Wilson-Devinney code, the photometric elements were computed. The results reveal that UU Lyn is a marginal contact system with a large temperature difference of about 1900 K between the primary and secondary components. All available eclipse times, including new ones, were used in the analysis. The results show that the orbital period of this system undergoes a continuous decrease at a rate of dP/dt=-1.84×{10^{-8}} d yr^{-1}. With the period decrease, UU Lyn may evolve from the present short-period marginal contact system into a contact system with true thermal contact. This target might just be undergoing the cycles predicted by the theory of thermal relaxation oscillations (TRO). It is an interesting example resembling BL And, GW Tau, ZZ Aur, KQ Gem, CN And and AD Cnc, that lie in the key evolutionary stage.
Boonrucksar Soonthornthum
He Jia-Jia
Qian Sheng Bang
Yuan Jin-Zhao
Zhu Li Ying
No associations
LandOfFree
A Photometric Study of the Near Contact Binary UU Lyncis 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 Photometric Study of the Near Contact Binary UU Lyncis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Photometric Study of the Near Contact Binary UU Lyncis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1078291