Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...410..275f&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 410, no. 1, p. 275-280.
Astronomy and Astrophysics
Astrophysics
8
Binary Stars, M Stars, Stellar Spectrophotometry, White Dwarf Stars, Spectral Energy Distribution, Stellar Models, Stellar Orbits
Scientific paper
We present results from several nights of JHK photometry of the hot DA white dwarf 0950+139. It has a significant infrared excess over the expected flux from the white dwarf alone, confirming a previous finding by Zuckerman et al. (1991). The infrared excess corresponds to an upper limit on the spectral type of a companion of M4 V. We consider two models for the infrared excess of 0950+139, involving either a mid-M dwarf or a substellar object as a close companion. If 0950+139 is a close binary with a period of days, we predict that we should detect variation in the infrared fluxes due to reprocessing by the companion. Such variation was not detected, which may mean the system has a different orbital period or an inclination near 0 deg.
Fulbright Michael S.
Liebert James
No associations
LandOfFree
JHK photometry of WD 0950+139 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with JHK photometry of WD 0950+139, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and JHK photometry of WD 0950+139 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1735451