X-ray emission from the magnetic star alpha ^2 Canum Venaticorum ?

Details X-ray emission from the magnetic star alpha ^2 Canum Venaticorum ? X-ray emission from the magnetic star alpha ^2 Canum Venaticorum ?

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2531r&link_type=abstract

Chandra proposal ID #10200216

Computer Science

Scientific paper

We propose a 15 ksec pilot study with Chandra ACIS-S of the visual binary system alpha^2 CVn (= HR~4915 and HR~4914). With an angular separation of ˜ 21.3 arcsec this system can be easily resolved with Chandra. X-ray emission from alpha^2 CVn has been detected with the Einstein Observatory IPC and in the ROSAT RASS data, however, the angular resolution of these data is insufficient to attribute the detected X-ray emission to the F0 component HR~4914 or the A0spe component HR~4915. Since HR~4915 has a measured magnetic field of a few kG, the correct attribution of the detected X-ray emission has far reaching consequences. With the proposed 15 ksec ACIS-S pilot study at the binary HR~4914/4915 we can provide the feasibility of a possible grating observation.

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