Monday, May 18, 2009

Nathalie Degenaar: Crust cooling of EXO 0748-676.

Nathalie shows us new observations of crustal cooling for the source EXO 0748-676. This source just turned to be in quiescence. It would be interesting to compare the cooling behavior of KS 1731 and MXB 1659. Data are just coming out. I find this very promising.  Theorists have now more data to compare with current models (see Ed Brown and Cackett talks). This of course if the source is really in quiescence.

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2 comments:

  1. Craig HeinkeMay 18, 2009 at 3:34 PM

    If the X-ray emission reflects the temperature of the core, then EXO 0748-676 has the hottest NS core known (or tied with Aquila X-1, depending on EXO 0748's distance). That would be very interesting.

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  2. Nathalie DegenaarMay 18, 2009 at 3:44 PM

    Yes, that would certainly be interesting. Note that *if* XTE J1701-462 has reached its core level already, it is also very hot (just below 1E34 erg/s).

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