Photometric study of the active binary star V1430 Aquilae

Details Photometric study of the active binary star V1430 Aquilae Photometric study of the active binary star V1430 Aquilae

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006an....327..335e&link_type=abstract

Astronomische Nachrichten, Vol.327, Issue 4, p.335-339

Astronomy and Astrophysics

Astronomy

2

Stars: Binaries: Eclipsing, Stars: Individual: V1430 Aql, Stars: Activity, Stars: Starspots, Stars: Fundamental Parameters, Stars: Evolution

Scientific paper

New BVR light curves and a photometric analysis of the eclipsing binary star V1430 Aql are presented. The light curves were obtained at the Çanakkale Onsekiz Mart University Observatory in 2004. The light curves are generally those of detached eclipsing binaries, but there are large asymmetries between maxima. New BVR light curves were analysed with an ILOT procedure. Light curve asymmetries of the system were explained in terms of large dark starspots on the primary component. The primary star shows a long-lived and quasi-poloidal spot distribution with active longitudes in opposite hemispheres. Absolute parameters of the system were derived. We also discuss the evolution of the system: the components are likely to be pre-main sequence stars, but a post-main sequence stage cannot be ruled out. More observations are needed to decide this point.

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