LP 133‐373: A New Chromospherically Active Eclipsing dMe Binary with a Distant, Cool White Dwarf Companion | Zendy

T. R. Vaccaro | Zendy; M. Rudkin | Zendy; A. Kawka | Zendy; S. Vennes | Zendy; T. D. Oswalt | Zendy; Isaac M. Silver | Zendy; M. A. Wood | Zendy; J. A. Smith | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

LP 133‐373: A New Chromospherically Active Eclipsing dMe Binary with a Distant, Cool White Dwarf Companion

Author(s) -

T. R. Vaccaro,

M. Rudkin,

A. Kawka,

S. Vennes,

T. D. Oswalt,

Isaac M. Silver,

M. A. Wood,

J. A. Smith

Publication year - 2007

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/517872

Subject(s) - physics , white dwarf , astrophysics , photometry (optics) , light curve , astronomy , radial velocity , radius , binary star , proper motion , binary number , stars , circular orbit , effective temperature , computer security , mathematics , computer science , arithmetic

We report the discovery of the partially eclipsing binary LP 133-373. Nearlyidentical eclipses along with observed photometric colors and spectroscopyindicate that it is a pair of chromospherically active dM4 stars in a circular1.6 d orbit. Light and velocity curve modeling to our differential photometryand velocity data show that each star has a mass and radius of 0.340+/-0.014M_sun and 0.33+/-0.02 R_sun. The binary is itself part of a common propermotion pair with LP 133-374 a cool DC or possible DA white dwarf with a mass of0.49-0.82 M_sun, which would make the system at least 3 Gyr old.Comment: Accepted for publication in Ap

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research