publication . Article . Preprint . 2005

WR 143: a Wolf-Rayet binary

Varricatt, Watson P.; Ashok, Nagarhalli M.;
Open Access
  • Published: 05 Oct 2005 Journal: Monthly Notices of the Royal Astronomical Society, volume 365, pages 127-133 (issn: 0035-8711, eissn: 1365-2966, Copyright policy)
  • Publisher: Oxford University Press (OUP)
Abstract
Near infrared spectroscopy and photometry of the Wolf-Rayet Star WR 143 (HD 195177) were obtained in the $JHK$ photometric bands. High resolution spectra observed in the J and H bands exhibit narrow 1.083-micron He I line and the H I Pa Beta and the Brackett series lines in emission superposed on the broad emission line spectrum of the Wolf-Rayet star, giving strong indications of the presence of a companion. From the narrow emission lines observed, the companion is identified to be an early-type Be star. The photometric magnitudes exhibit variations in the JHK bands which are probably due to the variability of the companion star. The flux density distribution i...
Subjects
arXiv: Astrophysics::Solar and Stellar AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics::High Energy Astrophysical Phenomena
free text keywords: Space and Planetary Science, Astronomy and Astrophysics, Astrophysics, Flux, Wolf–Rayet star, Physics, Photometry (optics), Emission spectrum, Be star, Stars, Spectral line, Astronomy, Spectroscopy
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publication . Article . Preprint . 2005

WR 143: a Wolf-Rayet binary

Varricatt, Watson P.; Ashok, Nagarhalli M.;