Searching for Companions to a New Member of the 5 pc Sample

Details Searching for Companions to a New Member of the 5 pc Sample Searching for Companions to a New Member of the 5 pc Sample

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40228f&link_type=abstract

Spitzer Proposal ID #40228

Computer Science

Scientific paper

The IRAC GTO team has used IRAC to search for brown dwarf companions to all known stars and brown dwarfs within 5 pc from the Sun. A new member of the solar neighborhood, SCR 1845-6357 (M8.5V), has been recently discovered at a distance of 3.85 pc, making it the 24th closest object to the Sun (Hambly et al. 2004; Henry et al. 2006). High-resolution imaging has revealed a T dwarf companion at a separation of 1' from this star (Biller et al. 2006). We propose to obtain IRAC images of SCR 1845-6357 to search for additional brown dwarf companions at wider separations.

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