The first observation of soft X-ray emission from a CTTS with high spectral resolution

Details The first observation of soft X-ray emission from a CTTS with high spectral resolution The first observation of soft X-ray emission from a CTTS with high spectral resolution

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cxo..prop.1903h&link_type=abstract

Chandra Proposal ID #07200958

Physics

Chandra Proposal Id #07200958

Scientific paper

We propose to obtain the first LETG spectrum of a CTTS, TW Hya, which is the X-ray brightest CTTS and has a low interstellar H I column density, N(H I). We will use flux ratios to measure the difference between interstellar N(H I) and N(H I) to the hot gas, which is a powerful test of whether X-ray emission is produced by accretion. We will measure the DEM between log T=5.8-6.4, which is unconstrained by existing X-ray and FUV spectra, and we will improve abundance estimates for the hot gas. This spectrum will reveal unique and significant insights into the origin and properties of hot gas from TW Hya by exploring a spectral range that has yet to be observed at high resolution from a CTTS.

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