XTE J1751-305 going back to its quiescent state

Linares, M.; Wijnands, R.; van der Klis, M.
Bibliographical reference

The Astronomer's Telegram, #1055

Advertised on:
4
2007
Number of authors
3
IAC number of authors
0
Citations
6
Refereed citations
5
Description
After the recent reports of activity of the accreting millisecond pulsar XTE J1751-305 (ATELs #1045, #1046 and #1051) we obtained another Swift/XRT (~4.3ksec) observation of the field starting on April 11th 2007 23:59. The source was not detected with a 2-10 keV upper limit of ~5E-14 erg/ cm2/s, corresponding to a luminosity of 3.8E32 (d/8kpc)**2 erg/s. This shows that the source decayed further and might have reached quiescence again.