Search for MACHOs by proper motion with EROS 2

Details Search for MACHOs by proper motion with EROS 2 Search for MACHOs by proper motion with EROS 2

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.280g&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

In 1996, EROS 2 started a proper motion program to look for nearby halo white and brown dwarfs. 300 square degrees have been surveyed with a one year baseline. No white dwarf has been found in the first 80 square degrees, but one very cold object has been detected, a L-class confirmed brown dwarf. Its transverse velocity of 80 km/s indicates an old population. By December all fields will be reduced, leading to discovery of several halo white dwarfs or to a better constraint on the halo composition (~20 objects expected at this point of the project, assuming a halo comprised entirely of hydrogene white dwarfs). Other disk faint objects will be detected as well.

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