Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-10-11
Astronomy and Astrophysics
Astrophysics
5 pages, 2 figures; to be published in IAU Symposium 219: "Stars as Suns: Activity, Evolution, Planets" (Ed. A. Dupree and A.
Scientific paper
Spectroscopy with the Chandra High Energy Transmission Grating Spectrometer provides details on X-ray emission and activity from young and cool stars through resolution of emission lines from a variety of ions. We are beginning to see trends in activity regarding abundances, emission measures, and variability. Here we contrast spectra of TV Crt, a weak-lined T Tauri star, with TW Hya, a Classical T Tauri star. TV Crt has a spectrum more like magnetic activity driven coronae, relative to the TW Hya spectrum, which we have interpreted as due to accretion-produced X-rays. We have also observed the long period system, IM Pegasi to search for rotational modulation, and to compare activity in a long period active binary to shorter period systems and to the pre-main sequence stars. We detected no rotational modulation, but did see long-duration flares.
Boroson Bram
Buzasi Derek L.
Canizares Claude R.
Huenemoerder David P.
Kastner Joel H.
No associations
LandOfFree
Stellar Coronal Spectroscopy with the Chandra HETGS does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Stellar Coronal Spectroscopy with the Chandra HETGS, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stellar Coronal Spectroscopy with the Chandra HETGS will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-543223