Accretion disk winds as the jet suppression mechanism in the microquasar GRS 1915+105

Joseph Neilsen () and Julia C. Lee
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Joseph Neilsen: 60 Garden Street, MS-10, Cambridge, Massachusetts 02138, USA
Julia C. Lee: 60 Garden Street, MS-10, Cambridge, Massachusetts 02138, USA

Nature, 2009, vol. 458, issue 7237, 481-484

Abstract: Relativistic jets: gone with the wind The coupling between relativistic jets and disks in stellar-mass black holes (or microquasars) has been studied extensively at radio to X-ray wavelengths, with GRS 1915+105 one of the most studied examples. However the mechanisms that trigger and suppress jet formation in these objects remain a mystery. Joseph Neilsen and Julia Lee have analysed the high-resolution X-ray spectra of GRS 1915+105 and find a broad emission line in the faint, hard states and narrow absorption lines in the bright, soft states. They argue that the broad emission line arises when a jet illuminates the inner accretion disk. The jet is absent during the soft states, suggesting that the radiation field around the black hole drives hot wind off the accretion disk that may carry sufficient mass away from the disk to halt the flow of matter into the jet.

Date: 2009
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DOI: 10.1038/nature07680

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