Characterization of X-ray emission from T Tauri Stars
Abstract
We are analyzing high-resolution Chandra ACIS-S/HETGS long integration spectra for a sample of young stars, including classical, weak-lined, and post-T Tauri stars as well as a young main sequence star. We have identified flaring and quiescent periods, based on overall X-ray luminosity, for several of the stars. We have measured line fluxes in the He-like ions separately in the flaring and quiescent epochs to determine forbidden-to-intercombination line ratios. Results from out analysis of four wTTS and one post-T Tauri star with Chandra/HETGS are included in this presentation. The temperature and density diagnostics for V987 Tau indicate that X-rays are emitted by a cool, high density plasma in the quiescent phase.
- Publication:
-
15th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun
- Pub Date:
- February 2009
- DOI:
- 10.1063/1.3099113
- Bibcode:
- 2009AIPC.1094..333S
- Keywords:
-
- 78.70.En;
- 97.10.Bt;
- 95.55.-n;
- X-ray emission spectra and fluorescence;
- Star formation;
- Astronomical and space-research instrumentation;
- X-ray emission spectra;
- star formation;
- telescopes