Companion of the white dwarf G29-38 as a brown dwarf

Journal Article · Sun May 01 04:00:00 EDT 1988 · Astron. J.; (United States)

DOI:https://doi.org/10.1086/114745· OSTI ID:6935376

Greenstein, J L

The white dwarf G29-38 is studied in order to determine whether it has a brown dwarf companion. A variety of spectra of the white dwarf shows it to be an essentially normal DA4V, without spectral peculiarities, that might have arisen from accretion or interaction with a close companion. The energy distribution of the infrared object G29-38B is obtained. The luminosity of the latter is roughly 4 x 10 to the -5th solar, its temperature between 1100 and 1500 K, with a strong preference for the lower half of that range. The radius corresponding to those temperatures, 0.18-0.10 solar, is larger than expected, but interpretation as a brown dwarf still appears most plausible. 22 references.

• Research Organization: California Institute of Technology, Pasadena (USA)
• OSTI ID: 6935376
• Journal Information: Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 95; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATMOSPHERES
BALMER LINES
BINARY STARS
DWARF STARS
ELECTROMAGNETIC RADIATION
ENERGY SPECTRA
INFRARED RADIATION
LUMINOSITY
MAIN SEQUENCE STARS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
SPECTRA
STARS
STELLAR ATMOSPHERES
WHITE DWARF STARS