The flickering radio jet from the quiescent black hole X-ray binary A0620-00
- dePolo, Donna L.
- Plotkin, Richard M.
- Miller-Jones, James C. A.
- Strader, Jay
- Maccarone, Thomas J.
- O'Doherty, Tyrone N.
- Chomiuk, Laura
- Gallo, Elena
DOIAbstract
Weakly accreting black hole X-ray binaries launch compact radio jets that persist even in the quiescent spectral state, at X-ray luminosities <1e-5 of the Eddington luminosity. However, radio continuum emission has been detected from only a few of these quiescent systems, and little is known about their radio variability. Jet variability can lead to misclassification of accreting compact objects in quiescence, and affects the detectability of black hole X-ray binaries in next-generation radio surveys. Here we present the results of a radio monitoring campaign of A0620-00, one of the best-studied and least-luminous known quiescent black hole X-ray binaries. We observed A0620-00 at 9.8 GHz using the Karl G. Jansky Very Large Array on 31 epoch...
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