dc.contributor.author | King, A. L. | |
dc.contributor.author | Miller, J. M. | |
dc.contributor.author | Cackett, E. M. | |
dc.contributor.author | Fabian, Andrew C. | |
dc.contributor.author | Markoff, Sera B. | |
dc.contributor.author | Rupen, M. | |
dc.contributor.author | Reynolds, M. T. | |
dc.contributor.author | Nowak, Michael A. | |
dc.contributor.author | Gultekin, K. | |
dc.date.accessioned | 2015-02-27T14:32:06Z | |
dc.date.available | 2015-02-27T14:32:06Z | |
dc.date.issued | 2010-02 | |
dc.date.submitted | 2010-07 | |
dc.identifier.issn | 0004-637X | |
dc.identifier.issn | 1538-4357 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/95711 | |
dc.description.abstract | We report on the results of a simultaneous monitoring campaign employing eight Chandra X-ray (0.5-10 keV) and six Very Large Array/Extended Very Large Array (8.4 GHz) radio observations of NGC 4051 over seven months. Evidence for compact jets is observed in the 8.4 GHz radio band; this builds on mounting evidence that jet production may be prevalent even in radio-quiet Seyferts. Assuming comparatively negligible local diffuse emission in the nucleus, the results also demonstrate an inverse correlation of L [subscript radio] ∝ L [–0.72±0.04 over X-ray]. If the A configuration is excluded in the case where diffuse emission plays a significant role, the relation is still L[subscript radio] ∝ L[-0.12±0.05 over X-ray]. Current research linking the mass of supermassive black holes and stellar-mass black holes in the "low/hard" state to X-ray luminosities and radio luminosities suggests a "fundamental plane of accretion onto black holes" that has a positive correlation of L [subscript radio] ∝ L [0.67±0.12 over X-ray]. Our simultaneous results differ from this relation by more than 11σ (6σ excluding the A configuration), indicating that a separate mode of accretion and ejection may operate in this system. A review of the literature shows that the inverse correlation seen in NGC 4051 is seen in three other black hole systems, all of which accrete at near 10% of their Eddington luminosity, perhaps suggesting a distinct mode of disk-jet coupling at high Eddington fractions. We discuss our results in the context of disks and jets in black holes and accretion across the black hole mass scale. | en_US |
dc.language.iso | en_US | |
dc.publisher | IOP Publishing | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1088/0004-637x/729/1/19 | en_US |
dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
dc.source | American Astronomical Society | en_US |
dc.title | A DISTINCTIVE DISK-JET COUPLING IN THE SEYFERT-1 ACTIVE GALACTIC NUCLEUS NGC 4051 | en_US |
dc.type | Article | en_US |
dc.identifier.citation | King, A. L., J. M. Miller, E. M. Cackett, A. C. Fabian, S. Markoff, M. A. Nowak, M. Rupen, K. Gultekin, and M. T. Reynolds. “A DISTINCTIVE DISK-JET COUPLING IN THE SEYFERT-1 ACTIVE GALACTIC NUCLEUS NGC 4051.” The Astrophysical Journal 729, no. 1 (February 7, 2011): 19. © 2011 The American Astronomical Society | en_US |
dc.contributor.department | MIT Kavli Institute for Astrophysics and Space Research | en_US |
dc.contributor.mitauthor | Nowak, Michael A. | en_US |
dc.relation.journal | The Astrophysical Journal | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dspace.orderedauthors | King, A. L.; Miller, J. M.; Cackett, E. M.; Fabian, A. C.; Markoff, S.; Nowak, M. A.; Rupen, M.; Gultekin, K.; Reynolds, M. T. | en_US |
mit.license | PUBLISHER_POLICY | en_US |
mit.metadata.status | Complete | |