Testing the Jet Quenching Paradigm with an Ultradeep Observation of a Steadily Soft State Black Hole
We present ultradeep radio observations with the Expanded Very Large Array of 4U 1957+11, a Galactic black hole (BH) candidate X-ray binary known to exist in a persistent soft X-ray state. We derive a stringent upper limit of 11.4 µJy beam–1 (3s) at 5-7 GHz, which provides the most rigorous upper li...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Institute of Physics Publishing, Inc
2011
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| Subjects: | |
| Online Access: | http://iopscience.iop.org/2041-8205/739/1/L19/ http://hdl.handle.net/20.500.11937/20513 |