Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988natur.336..656b&link_type=abstract
Nature (ISSN 0028-0836), vol. 336, Dec. 15, 1988, p. 656-658. Research supported by NASA and NSF.
Astronomy and Astrophysics
Astronomy
210
Companion Stars, Star Distribution, Stellar Mass, Stellar Temperature, White Dwarf Stars, Brown Dwarf Stars, Cool Stars, Dwarf Stars, Infrared Interferometers, Infrared Spectra, Sky Surveys (Astronomy)
Scientific paper
An infrared object located about 120 AU from the white dwarf GD165 has been discovered. With the exception of the possible brown dwarf companion to Giclas 29-38 reported last year, the companion to GD165 is the coolest (2100 K) dwarf star ever reported and, according to some theoretical models, it should be a substellar brown dwarf with a mass between 0.06 and 0.08 solar mass. These results, together with newly discovered low-mass stellar companions to white dwarfs, change the investigation of very low-mass stars from the study of a few chance objects to that of a statistical distribution. In particular, it appears that very low-mass stars and perhaps even brown dwarfs could be quite common in the Galaxy.
Becklin Eric E.
Zuckerman Ben
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