GX 339-4 back in the hard state: optical observations reveal the return of the jet

Bibcode
2011ATel.3191....1R
Russell, D. M.; Lewis, F.
Bibliographical reference

The Astronomer's Telegram, #3191

Advertised on:
2
2011
Number of authors
2
IAC number of authors
0
Citations
4
Refereed citations
4
Description
The transient black hole candidate GX 339-4 has been in outburst since January 2010 (ATel #2380, #2384, #2455, #2459, #2525) and made a transition from the hard state to the soft state during March - May 2010 (ATel #2523, #2545, #2547, #2556, #2573, #2577, #2593). The source remained in a soft state for ~ eight months before finally hardening in January 2011 (ATel #3117). We are monitoring GX 339-4 with the Faulkes Telescope South (located at Siding Spring, Australia).
Type
Non-refereed

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