Stellar Winds from Dme Stars

Details Stellar Winds from Dme Stars Stellar Winds from Dme Stars

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop..765w&link_type=abstract

Chandra Proposal ID #03200602

Computer Science

Chandra Proposal Id #03200602

Scientific paper

Despite the fact that the most stars have low mass and lie on the main sequence, we know virtually nothing about their stellar winds. Existing measurements of stellar winds extend down only to a few times 1e-10 M_solar/yr and only apply to high-mass stars and red giants and supergiants. With Chandra's unparalleled imaging resolution, high sensitivity, and energy resolution, winds from nearby dwarf stars are now detectable via their X-ray emission from the charge exchange of stellar wind ions with neutral gas in the ISM. Our proposed observations of dwarf M flare stars will be capable of imaging stellar winds comparable to those of the Sun (mass loss rate 2e-14 M_solar/yr), and will provide information on wind and magnetosphere geometry, ion composition, and mass loss rates.

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