Alternate: The Eclipsing Binary ET Tau

Details Alternate: The Eclipsing Binary ET Tau Alternate: The Eclipsing Binary ET Tau

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cxo..prop.1771g&link_type=abstract

Chandra Proposal ID #06800045

Computer Science

Chandra Proposal Id #06800045

Scientific paper

We propose to observe the eclipsing binary ET Tau. The primary star in this system is a spectral type B8, but very little is known about the companion due to significant obscuration (bII ~ -2.3 degrees). We suspect that it is a low-mass star, and likely an X-ray source. It is undetected in the RASS, but this is not surprising since it the ROSAT band extended only to 2.4 keV, and most of this emission would be lost to photoelectric absorption. (Since it is a fairly crowded field we require the spatial resolution of Chandra rather than the soft-band sensitivity of XMM-Newton.) We propose a short 10 ks snapshot of this system in order to gauge the worth of a long duration Chandra observation in GO7 which would be appropriately timed to probe its 6-day period.

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