IQ Aur: A new mode of X-ray generation in magnetic stars ?

Details IQ Aur: A new mode of X-ray generation in magnetic stars ? IQ Aur: A new mode of X-ray generation in magnetic stars ?

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007xmm..prop...10s&link_type=abstract

XMM-Newton Proposal ID #05502801

Computer Science

Stars, White Dwarfs, Solar System, Iq Aur, Xmm-Newton Proposal Id #05502801

Scientific paper

We propose to obtain the first high-resolution X-ray spectrum of the peculiar magnetic A-type star IQ Aur. From previous X-ray observations IQ Aur is known as a strong (LX ~ 4 10**29 erg/s), but very soft (TX ~ 0.29 keV) X-ray source. An attribution of IQ~Aur's X-ray emission to a low-mass companion would imply totally unusual properties of such an hypothesized object, thus IQ Aur is a good candidate for an A-type star with intrinsic X-ray emission.The XMM-Newton RGS spectrum will constrain the location of the X-ray emission site from a measurement or upper limit to the strength of the OVII f line, the overall RGS spectrum will determine the elemental abundances, which may be far away from solar,and the phase coverage will allow a search for rotational modulation of IQ Aur's X-ray flux.

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