Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000head....5.4108m&link_type=abstract
American Astronomical Society, HEAD Meeting #5, #41.08; Bulletin of the American Astronomical Society, Vol. 32, p.1254
Astronomy and Astrophysics
Astronomy
Scientific paper
V1223 Sgr is among the brightest magnetic cataclysmic variable in the 1--10 keV range, with a 3.36 hr orbital period and a 745.6 s spin period. Here we report the preliminary results from our Chandra HETG observation, performed on 2000 April 30/May 1, as well as from supporting observations with RXTE and ground-based telescopes. We have detected Kα lines of many atomic species in the phase-averaged HETG spectrum; in many cases, these constitute the first detection in this system. We find that the Fe L lines are substantially weaker than would be expected in a collisionally excited plasma. We will discuss possible interpretations of the line ratios.
Bruch Albert
Handler Gerald
Kallman Tim
Kemp John
Mukai Kazuhiko
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