Detection of an increasing orbital period in the subdwarf B eclipsing system NSVS 14256825

Details Detection of an increasing orbital period in the subdwarf B eclipsing system NSVS 14256825 Detection of an increasing orbital period in the subdwarf B eclipsing system NSVS 14256825

Apr 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012mnras.421.3238k&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 421, Issue 4, pp. 3238-3241.

Astronomy and Astrophysics

Astronomy

Binaries: Eclipsing, Stars: Individual: Nsvs 14256825

Scientific paper

New timings of eclipses made in 2010 and 2011 are presented for the hot subdwarf B (sdB) eclipsing binary NSVS 14256825. Composed of an sdB star and a much cooler companion, with a period near 0.1104 days, this system is very similar to the prototype sdB eclipsing binary HW Vir. The new observations show that the binary period of NSVS 14256825 is rapidly increasing at a rate of about 12 × 10-12 days orbit-1.

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