Does G29-38 have a massive companion?

Details Does G29-38 have a massive companion? Does G29-38 have a massive companion?

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...357l..21g&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 357, July 1, 1990, p. L21-L24.

Astronomy and Astrophysics

Astrophysics

13

Binary Stars, Brown Dwarf Stars, Companion Stars, Stellar Spectra, White Dwarf Stars, Charge Coupled Devices, Radial Velocity, Stellar Mass, Stellar Oscillations, Stellar Spectrophotometry

Scientific paper

Radial velocity measurements of G29-38 during the period of 182 days are used to show that the phase modulation of the optical pulsations is not due to orbital motion about a massive companion. Limits on the presence of a close brown dwarf companion are not stringent, but there is evidence for a linear trend in the radial velocity which may be part of a periodic variation with an amplitude greater or equal to 5 km/s and period greater or equal to 360 days.

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