POSTER PAPER 3.07
Probing Magnetospheric Infall onto CTTS with Time-resolved Veiling Measurements.
H.C. Stempels & N. Piskunov
Institute: Department of Astronomy and Space Physics, Uppsala, Sweden
Contact Email: piskunov@astro.uu.se
Abstract:
We show that time-resolved veiling measurements over a large wavelength
range can probe individual accretion events onto Classical T Tauri Stars
(CTTS). We demonstrate two methods of measuring veiling. Using these
measurements, we model CTTS spectra as a superposition of two components
representing stellar and accretion emission. The simple but functional
method allows us to estimate the temperature of the accretion shock and the
relative surface area of the accretion regions on the star. We apply this
method to a series of spectra of the CTTS RU Lupi and present our first
results.
Index Keywords:
Previous: Valenti
Next: Melo
Up: Poster Index
Up: Top Index
Manuscript submitted: 2001-Sep-04
"The Future of Cool-Star Astrophysics", 2003, Eds. A. Brown,
G. M. Harper, & T. R. Ayres.
Proceedings of 12th Cambridge Workshop on Cool Stars, Stellar Systems,
& The Sun,
© 2003 University of Colorado.