XMMSL1 J171900.4-353217 returns to quiescence.
Abstract
After the re-brightening of the new very faint X-ray source XMMSL1 J171900.4-353217 [ATel #2607, #2722], an additional observation has been carried out using the XRT aboard Swift on July 13th 2010.
In this last pointing ~960 seconds only two counts were present in the source extraction region demonstrating that we did not detect the source in our observation. We have calculated the upper limit on the flux with HEARSAC tool WebPIMMs (v4.1a) assuming an absorbed powerlaw model with an hydrogen column of 3.4E22 cm-2 (see ATel #2627) and a photon index of 2.11 (see ATel #2722).- Publication:
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The Astronomer's Telegram
- Pub Date:
- July 2010
- Bibcode:
- 2010ATel.2738....1A
- Keywords:
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- X-ray;
- Binaries;
- Black Holes;
- Neutron Stars;
- Transients