Magnetic Fields on 'alien Dwarfs': Coronal Activity in the Arcturus Moving Group

Details Magnetic Fields on 'alien Dwarfs': Coronal Activity in the Arcturus Moving Group Magnetic Fields on 'alien Dwarfs': Coronal Activity in the Arcturus Moving Group

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cxo..prop.1900b&link_type=abstract

Chandra Proposal ID #07200977

Physics

Chandra Proposal Id #07200977

Scientific paper

The Arcturus Moving Group is very likely a remnant of the merger of a dwarf galaxy with the Milky Way Galaxy in the distant (10 Gyr) past. This kinematically distinct group has members that are located very close to the Sun, allowing study of coronal activity on very old stars that would typically not be possible. We propose to use ACIS-S to observe four dwarf members of the Actrurus Moving Group with the aim of determining their X-ray luminosities, coronal temperatures, and the effects of low metallicity on coronal spectra.Our taregts have metallicities between 0.4 and 0.04 solar, spectral types F9 - K0, and are at distances less than 25 pc from the Sun.

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