Discovery of low mass objects in Taurus

Details Discovery of low mass objects in Taurus Discovery of low mass objects in Taurus

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989tidt.work..221f&link_type=abstract

In NASA, Ames Research Center, Proceedings of the Third Infrared Detector Technology Workshop p 221-230 (SEE N90-21313 14-35)

Astronomy and Astrophysics

Astronomy

4

Brown Dwarf Stars, Infrared Astronomy, Luminosity, Stellar Mass, Cooling, Estimating, Infrared Radiation

Scientific paper

In infrared (2.2 micron, K-band) search of small regions (25 in square) near 26 members of the Taurus star-forming association has revealed 20 dim (K = 13-16 mag) stellar objects near 13 of them. Of these 20 objects, 9 are exceptionally red. It is argued that these 9 are probably also Taurus members. From the luminosities (0.4 to 4 times 10 the -3 power luminosity) and ages (estimated at 106 years), masses can be determined by reference to theoretical low-mass cooling curves. The masses are in the range 0.005 to 0.015 solar mass, i.e., low-mass brown dwarfs. Proper motion studies of 7 of the objects visible on the POSS plates conducted by Burton Jones establish that 4 are highly probable Taurus members while 1 is a possible member.

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