Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008head...10.0801d&link_type=abstract
American Astronomical Society, HEAD meeting #10, #8.01
Astronomy and Astrophysics
Astrophysics
Scientific paper
The closest accreting T Tauri star, TW Hya, is reported (Setiawan et al., 2008) to harbor a planet of 9.8MJupiter, with an orbital period of 3.56 days, making it ideal to evaluate the X-ray environment in this 10 Myr system. Extensive (500 ks) CHANDRA observations of TW Hya in February 2007 reveal the variability of X-rays which presumably arise from both accretion and coronal activity. The flaring events that occurred during this long observation are similar to events reported earlier by Kastner et al. (2002). Simultaneous ground-based spectroscopy from Magellan/MIKE can be compared to the X-ray measurements to seek the chromospheric response to X-ray events. Research supported in part by NASA and the Smithsonian Astrophysical Observatory.
Brickhouse Nancy S.
Dupree Andrea K.
Luna Gerardo J. M.
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