Chandra HETG Observations of an Accreting Pre-main Sequence Star with a Periodic Inner Disk Warp
Abstract
X-ray emission from young, low-mass, pre-main sequence stars is generated as a result of magnetic activity and the associated magnetic phenomena, such as coronal heating and magnetospheric accretion, are fundamental to the formation of stars. High resolution X-ray spectroscopy with Chandra-HETG offers a unique window to probe and distinguish the detailed physics underlying these processes. We present Chandra-HETG GTO observations of the nearby, pre-main sequence star SZ 96 which is a rare example of an accreting star-disk system at the cusp of disk dispersal. This system exhibits an unusual ~9 day period in its optical light curve where it changes in brightness by 3-4 magnitudes in V band. This extreme optical variability may be related to the variability observed in X-rays over the course of roughly one ten day period. Here we present preliminary HETG results where we characterize the SZ 96 high resolution X-ray spectrum and its associated variability.
- Publication:
-
American Astronomical Society Meeting Abstracts #235
- Pub Date:
- January 2020
- Bibcode:
- 2020AAS...23530804P