Brief search for low-mass objects

Details Brief search for low-mass objects Brief search for low-mass objects

Mar 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pasp...97..294k&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 97, March 1985, p. 294-296.

Astronomy and Astrophysics

Astronomy

7

Companion Stars, Infrared Astronomy, Stellar Mass, White Dwarf Stars, Cassegrain Antennas, Infrared Spectrophotometers, Stellar Evolution, Stellar Luminosity, Stellar Magnitude, Stellar Temperature

Scientific paper

Observations of the nearby white dwarfs EG 5 (van Maanen 2) and EG 290 obtained in the J, H, K, L, L-prime, and M bands using an RC1 photometer at the Cassegrain focus of the 3.3-m IR telescope at Mauna Kea on Dec. 2, 1983 are reported. The L-band fluxes are analyzed to search for low-mass companion objects, but none is found. Upper limits of Te = 850 K and L = 5 x 10 to the -6th solar luminosity are established for the putative companions of both dwarfs, corresponding to a mass of 0.027 solar mass or less for an age of 3 Gyr.

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