High Resolution Fe Lyman and Balmer Band Spectroscopy of the Bursts in EXO 0748-676

Details High Resolution Fe Lyman and Balmer Band Spectroscopy of the Bursts in EXO 0748-676 High Resolution Fe Lyman and Balmer Band Spectroscopy of the Bursts in EXO 0748-676

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006head....9.0205c&link_type=abstract

American Astronomical Society, HEAD meeting #9, #2.05; Bulletin of the American Astronomical Society, Vol. 38, p.345

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the results of high resolution spectroscopy of the x-ray bursts in the LMXB EXO 0748-676. Early observations with XMM/RGS showed evidence for gravitationally redshifted absorption lines, which can be identified with the n=2-3 transitions of H- and He-like Fe arising in the photosphere of the neutron star at z=0.35. We will discuss the results from a 600 ks follow-up observation with the XMM/RGS, and from a 300 ks observation with the Chandra/HETGS.

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