A photometric study of NN Virginis

Details A photometric study of NN Virginis A photometric study of NN Virginis

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...415..283d&link_type=abstract

Astronomy and Astrophysics, v.415, p.283-287 (2004)

Astronomy and Astrophysics

Astrophysics

4

Binaries: Eclipsing, Binaries: Close, Individual: Nn Virginis

Scientific paper

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 (f_over ˜ 58%) with a relatively small temperature differences between the components (Δ T=Th-Tc˜ 160 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.
Table 2 is only available in electronic form at CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/415/283

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