Volume 415, Number 1, February III 2004
|Page(s)||283 - 287|
|Section||Stellar structure and evolution|
|Published online||03 February 2004|
A photometric study of NN Virginis*
Astronomical Observatory, Volgina 7, 11160 Belgrade, Serbia and Montenegro and Isaac Newton Institute of Chile, Yugoslav branch
2 Ankara University, Faculty of Science, Dept. of Astronomy and Space Sciences, 06100, Tandoğan, Ankara, Turkey
Corresponding author: G. Djurašević, email@example.com
Accepted: 14 October 2003
Photoelectric BV light curves of the recently discovered eclipsing binary NN Vir were studied for the first time to derive the physical parameters of the system. The light curves were obtained at the Ankara University Observatory during three nights in May, 2002. The solutions made by using Djurasevic's inverse problem method describe the NN Vir system as a high overcontact configuration () with a relatively small temperature differences between the components ( K). These solutions suggest a significant mass and energy transfer from the more massive primary onto the less massive secondary. The hot area on the less massive star, near the neck region, can be taken as a consequence of this mass and energy exchange between the components through the connecting neck of the common envelope.
Key words: binaries: eclipsing / binaries: close / individual: NN Virginis
© ESO, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.