Jet Suppression by Accretion Disk Winds in the Microquasar GRS 1915+105
| dc.creator | Neilsen, Joseph | |
| dc.creator | Lee, Julia C. | |
| dc.date | 2009-03-24 | |
| dc.date.accessioned | 2026-07-07T12:56:18Z | |
| dc.date.available | 2026-07-07T12:56:18Z | |
| dc.description | Stellar-mass black holes with relativistic jets, also known as microquasars, mimic the behavior of quasars and active galactic nuclei. Because timescales around stellar-mass black holes are orders of magnitude smaller than those around more distant supermassive black holes, microquasars are ideal nearby `laboratories' for studying the evolution of accretion disks and jet formation in black-hole systems. Although studies of black holes have revealed a complex array of accretion activity, the mechanisms that trigger and suppress jet formation remain a mystery. Here we report the discovery of a broad emission line during periods of intense hard X-ray flux in the microquasar GRS 1915+105, and highly ionized narrow absorption lines during softer states. We argue that the broad emission line arises when the inner accretion disk is illuminated by hard X-rays, possibly from the jet. In contrast, during softer states, when the jet is weak or absent, absorption lines appear as the powerful radiation field around the black hole drives a hot wind off the accretion disk. Our analysis strongly suggests that this wind carries enough mass away from the disk to halt the flow of matter into the radio jet. | |
| dc.description | To appear in the March 26 issue of Nature. This is the version accepted to Nature, Feb. 5, 2009 | |
| dc.identifier | https://arxiv.org/abs/0903.4173 | |
| dc.identifier | http://arxiv.org/abs/0903.4173 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/224539 | |
| dc.subject | High Energy Astrophysical Phenomena | |
| dc.title | Jet Suppression by Accretion Disk Winds in the Microquasar GRS 1915+105 | |
| dc.type | text |