AX J1740.2-2903: X-ray Period and Optical Identification

Details AX J1740.2-2903: X-ray Period and Optical Identification AX J1740.2-2903: X-ray Period and Optical Identification

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atel.2664....1h&link_type=abstract

The Astronomer's Telegram, #2664

Astronomy and Astrophysics

Astronomy

3

Optical, X-Ray, Gamma Ray, Binaries, Cataclysmic Variables

Scientific paper

Further to the discussion of XMM-Newton and INTEGRAL/IBIS observations of this source by Malizia et al., arXiv:1006.1272, we report the discovery of periodicity in X-rays, as well as an optical spectroscopic identification. We observed AX J1740.2-2903 with XMM-Newton for 8.2 ks on 2005 September 29. A strong periodic signal is detected in these data at P = 623+/-2 s, with a single-peaked pulse profile.

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