Pre-planned ToO of a pre-main sequence star undergoing an optical-IR outburst

Details Pre-planned ToO of a pre-main sequence star undergoing an optical-IR outburst Pre-planned ToO of a pre-main sequence star undergoing an optical-IR outburst

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009xmm..prop...85g&link_type=abstract

XMM-Newton Proposal ID #06522801

Physics

Stars, White Dwarfs, Solar System, Pms Star In Out

Scientific paper

Dramatic optical/IR outbursts from PMS stars, which signal the onset of rapid mass-infall onto such stars through their accretion disks, cannot be predicted. However, our X-ray monitoring of the outbursts of V1647 Ori demonstrates that a high accretion rate can also produce an X-ray outburst, and, indeed, that X-ray monitoring of PMS accretion outbursts represents a new observational window on the magnetic interaction between the stellar magnetosphere and the accretion disk. We propose a 40 ks-exposure XMM-Newton ToO of any optical/IR outburst from PMS star to perform X-ray spectroscopy with EPIC and to investigate X-ray variability on a timescale of hours.

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