EROS 2 Proper Motion Search for Halo White and Brown Dwarfs

Details EROS 2 Proper Motion Search for Halo White and Brown Dwarfs EROS 2 Proper Motion Search for Halo White and Brown Dwarfs

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...19312304g&link_type=abstract

American Astronomical Society, 193rd AAS Meeting, #123.04; Bulletin of the American Astronomical Society, Vol. 31, p.667

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Scientific paper

In 1996, EROS 2 started a proper motion program to look for nearby halo white and brown dwarfs. 320 square degrees have been surveyed with a one year baseline. No white dwarf has been found in the first 130 square degrees, but one very cold L-class object has been detected. Its transverse velocity of 80 km/s indicates an old population. Current detection expectations are a dozen MV=17 white dwarfs for a full halo. By January the whole area will be reduced, using a third epoch for half of the fields, with an increase of the searched volume leading to discovery of halo white dwarfs or to a better contraint on the halo composition. Other disk faint objects will be detected as well.

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