Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atel.2564....1m&link_type=abstract
The Astronomer's Telegram, #2564
Astronomy and Astrophysics
Astronomy
Far-Infra-Red, X-Ray, Binaries, Neutron Stars, Pulsars, Transients
Scientific paper
A long-term periodicity was recently reported for the X-ray source AX J1700.2-4220 (Corbet et al. ATEL #2259). Here we report that XMM data show the that the source is a 54 second X-ray pulsar and that RXTE PCA bulge scan data confirm the 44 day apparent orbital period. We examined archival X-ray data taken by Swift XRT (5900 sec exposure on 2007-02-17), XMM Newton (6900 sec exposure on 2007-02-24), and Chandra ACIS-S (1650 sec exposure on 2007-09-30).
Baumgartner Wayne H.
Corbet Robin H. D.
Markwardt Craig B.
Skinner Gerald K.
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