The nature of the newly discovered transient X-ray binary Swift J1910.2-0546
Abstract
Swift J1910.2-0546 is a newly discovered transient X-ray binary that exhibited a ~1 yr long outburst in 2012-2013. Elucidating the nature of the compact primary is of crucial importance for interpreting intriguing phenomena observed during its outburst. To this end, we request a 50 ks XMM-Newton observation now that the source resides in quiescence. Given the long duration of the outburst, a neutron star would reveal itself through the detection of relatively bright (Lx~1E32-1E33 erg/s) and (predominantly) thermal emission. In contrast, a black hole would show a significantly harder, non-thermal X-ray spectrum and a luminosity that is likely much weaker (Lx<1E32 erg/s). The low column density and relative proximity of the source will allow a detection down to Lx~E31 erg/s (0.5-10 keV).
- Publication:
-
XMM-Newton Proposal
- Pub Date:
- October 2013
- Bibcode:
- 2013xmm..prop...49D
- Keywords:
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- White Dwarf Binaries;
- Neutron Star Binaries;
- Cataclysmic Variables;
- ULXs;
- Black Holes;
- Swift J1910.2-0