Physics
Scientific paper
Sep 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2105b&link_type=abstract
Chandra Proposal ID #08200531
Physics
Chandra Proposal Id #08200531
Scientific paper
Only a decade ago, theoretical expectation was that magnetic activity would disappaer beyond M5. While we now know that stellar activity exists in some late-M dwarfs, only a few such objects have been observed in the X-rays. Thus, the ubiquity and physics of coronae and magnetic fields remain unclear. This is exacerbated by the shift to flaring emission, whose properties are poorly characterized due to the lack of simultaneous observations. It is therefore time to produce a complete picture of the coronae and chromospheres in ultracool dwarfs, and directly implicate magnetic fields in this activity. Here we propose to delineate the underlying physics of the magnetic activity with fully simultaneous observations in the X-ray, radio, and H-alpha bands.
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