J.J.M. in 't Zand
- The faint neutron star and probable ultra-compact transient AX J1754.2-2754: Quiescent after a (long) outburst
- The astronomer's telegram
- Document type
- Faculty of Science (FNWI)
- Anton Pannekoek Institute for Astronomy (API)
We report on multi-epoch Chandra and optical observations of the faint, bursting (Chelovekov & Grebenev 2007, Atel #1094) neutron star transient AX J1754.2-2754. The source has been detected every time since 1999 (Sakano et al. 1999) when an X-ray satellite observed the source. However, we do not detect the source in Chandra Galactic Bulge Survey observations obtained in May 2008. The Galactic Bulge Survey is an optical and X-ray survey of two strips each 6 by 1 degrees centered 1.5 degrees above and below the Galactic plane towards the Galactic center.
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