University of Hertfordshire

From the same journal

From the same journal

By the same authors

Documents

  • S.L. Schuh
  • G. Handler
  • H. Drechsel
  • P. Hauschildt
  • S. Dreizler
  • R. Medupe
  • C. Karl
  • S. Kim
  • B.G. Park
  • M. Wood
  • M. Paparo
  • B. Szeidl
  • G. Viraghalmy
  • D. Zsuffa
  • O. Hashimoto
  • K. Kinugasa
  • H. Taguchi
  • E. Kambe
  • E. Leibowitz
  • P. Ibbetson
  • Y. Lipkin
  • T. Nagel
  • E. Gohler
  • M.L. Pretorius
View graph of relations
Original languageEnglish
Pages (from-to)649-661
JournalAstronomy and Astrophysics
Journal publication dateNov 2003
Volume410
DOIs
Publication statusPublished - Nov 2003

Abstract

We report the discovery of a new eclipsing system less than one arcminute south of the pulsating DB white dwarf KUV05134+2605. The object could be identified with the point source 2MASSJ0516288+260738 published by the Two Micron All Sky Survey.We present and discuss the first light curves as well as some additional colour and spectral information. The eclipse period of the system is 1.29 d, and, assuming this to be identical to the orbital period, the best light curve solution yields a mass ratio of m2/m1 = 0.11, a radius ratio of r2/r1 ≈ 1 and an inclination of 74◦. The spectral anaylsis results in a Teff = 4200 K for the primary. On this basis, we suggest that the new system probably consists of a late K + Brown dwarf (which would imply a system considerably younger than ≈0.01 Gyr to have r2/r1 ≈ 1), and outline possible future observations.

Notes

Original article available at: http://www.aanda.org/--Copyright The European Southern Observatory DOI : 10.1051/0004-6361:20031241

ID: 173873