A new method for estimating frequency‐dependent core shifts in active galactic nucleus jets
dc.contributor.author | Kudryavtseva, N. A. | en_US |
dc.contributor.author | Gabuzda, D. C. | en_US |
dc.contributor.author | Aller, Margo F. | en_US |
dc.contributor.author | Aller, Hugh D. | en_US |
dc.date.accessioned | 2011-11-10T15:39:04Z | |
dc.date.available | 2012-10-01T18:34:47Z | en_US |
dc.date.issued | 2011-08-01 | en_US |
dc.identifier.citation | Kudryavtseva, N. A.; Gabuzda, D. C.; Aller, M. F.; Aller, H. D. (2011). "A new method for estimating frequency‐dependent core shifts in active galactic nucleus jets." Monthly Notices of the Royal Astronomical Society 415(2). <http://hdl.handle.net/2027.42/87134> | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.issn | 1365-2966 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/87134 | |
dc.description.abstract | We discuss the opacity in the core regions of active galactic nuclei observed with Very Long Baseline Interferometry (VLBI), and describe a new method for deriving the frequency‐dependent shifts of the VLBI core from the frequency‐dependent time lags of flares observed with single‐dish observations. Application of the method to the core shifts of the quasar 3C 345 shows a very good agreement between the core shifts directly measured from VLBI observations and derived from flares in the total flux density using the proposed method. The frequency‐dependent time lags of flares can be used to derive physical parameters of the jets, such as distance from the VLBI core to the base of the jet and the magnetic fields in the core region. Our estimates for 3C 345 indicate core magnetic fields ≃0.1 G and magnetic field at 1 pc ≃ 0.4 G. | en_US |
dc.publisher | Blackwell Publishing Ltd | en_US |
dc.publisher | Wiley Periodicals, Inc. | en_US |
dc.subject.other | Galaxies: Active | en_US |
dc.subject.other | Galaxies: Individual: 3C 345 | en_US |
dc.subject.other | Galaxies: Jets | en_US |
dc.subject.other | Galaxies: Magnetic Fields | en_US |
dc.title | A new method for estimating frequency‐dependent core shifts in active galactic nucleus jets | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Astronomy | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Astronomy Department, University of Michigan, Ann Arbor, MI 48109‐1042, USA | en_US |
dc.contributor.affiliationother | Curtin Institute of Radio Astronomy, Curtin University, GPO Box U1987, Perth, WA 6845, Australia | en_US |
dc.contributor.affiliationother | Physics Department, University College Cork, Cork, Ireland | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/87134/1/j.1365-2966.2011.18808.x.pdf | |
dc.identifier.doi | 10.1111/j.1365-2966.2011.18808.x | en_US |
dc.identifier.source | Monthly Notices of the Royal Astronomical Society | en_US |
dc.identifier.citedreference | Aller M. F., Aller H. D., Hughes P. A., Latimer G. E., 1999, ApJ, 512, 601 | en_US |
dc.identifier.citedreference | Aller M. F., Aller H. D., Hughes P. A., 2003, ApJ, 586, 33 | en_US |
dc.identifier.citedreference | Bietenholz M. F., Bartel N., Rupen M. P., 2004, ApJ, 615, 173 | en_US |
dc.identifier.citedreference | Biretta J. A., Moore R. L., Cohen M. H., 1986, ApJ, 308, 93 | en_US |
dc.identifier.citedreference | Blandford R. D., Königl A, 1979, ApJ, 232, 34 | en_US |
dc.identifier.citedreference | Caproni A., Abraham Z., 2004a, ApJ, 602, 625 | en_US |
dc.identifier.citedreference | Caproni A., Abraham Z., 2004b, MNRAS, 349, 1218 | en_US |
dc.identifier.citedreference | Croke S. M., Gabuzda D. C., 2008, MNRAS, 386, 619 | en_US |
dc.identifier.citedreference | Fey A. L., Boboltz D. A., Gaume R. A., Eubanks T. M., Johnston K. J., 2001, AJ, 121, 1741 | en_US |
dc.identifier.citedreference | Gómez J. L., Martí J. M. A., Marscher A. P., Ibáñez J. M. A., Alberdi A., 1997, ApJ, 482, 33 | en_US |
dc.identifier.citedreference | Guirado J. C. et al., 1995, AJ, 110, 2586 | en_US |
dc.identifier.citedreference | Hirotani K., 2005, ApJ, 619, 73 | en_US |
dc.identifier.citedreference | Hovatta T., Valtaoja E., Tornikoski M., Lähteenmäki A., 2009, A&A, 494, 527 | en_US |
dc.identifier.citedreference | Jorstad S. G. et al., 2005, AJ, 130, 1418 | en_US |
dc.identifier.citedreference | Kellermann K. I. et al., 2004, ApJ, 609, 539 | en_US |
dc.identifier.citedreference | Königl A., 1981, ApJ, 243, 700 | en_US |
dc.identifier.citedreference | Kovalev Y. Y., Lobanov A. P., Pushkarev A. B., Zensus J. A., 2008, A&A, 483, 759 | en_US |
dc.identifier.citedreference | Lara L., Alberdi A., Marcaide J. M., Muxlow T. W. B., 1994, A&A, 285, 393 | en_US |
dc.identifier.citedreference | Lobanov A. P., 1998, A&A, 330, 79 | en_US |
dc.identifier.citedreference | Lobanov A. P., Zensus J. A., 1999, ApJ, 521, 509 | en_US |
dc.identifier.citedreference | Marcaide J. M., Shapiro I. I., 1984, ApJ, 276, 56 | en_US |
dc.identifier.citedreference | Marscher A. P., Gear W. K., 1985, ApJ, 298, 114 | en_US |
dc.identifier.citedreference | Marziani P., Sulentic J. W., Dultzin‐Hacyan D., Calvani M., Moles M., 1996, ApJS, 104, 37 | en_US |
dc.identifier.citedreference | O’Sullivan S. P., Gabuzda D. C., 2009, MNRAS, 400, 26 | en_US |
dc.identifier.citedreference | Pyatunina T. B., Kudryavtseva N. A., Gabuzda D. C., Jorstad S. G., Aller M. F., Aller H. D., Teräsranta H., 2006, MNRAS, 373, 1470 | en_US |
dc.identifier.citedreference | Pyatunina T. B., Kudryavtseva N. A., Gabuzda D. C., Jorstad S. G., Aller M. F., Aller H. D., Teräsranta H., 2007, MNRAS, 381, 797 | en_US |
dc.identifier.citedreference | Rantakyrö F. T., Baath L. B., Matveenko L., 1995, A&A, 293, 44 | en_US |
dc.identifier.citedreference | Rees M. J., 1967, MNRAS, 135, 345 | en_US |
dc.identifier.citedreference | Ros E., Lobanov A. P., 2001, in Behrend D., Ruis A., eds, Proc. 15th Workshop Meeting on European VLBI for Geodesy and Astrometry. Inst. d'Estudis Espacials Catalunya, Barcelona, p. 208 | en_US |
dc.identifier.citedreference | Ros E., Zensus J. A., Lobanov A. P., 2000, A&A, 354, 55 | en_US |
dc.identifier.citedreference | Teräsranta H. et al., 1992, A&AS, 94, 121 | en_US |
dc.identifier.citedreference | Teräsranta H. et al., 1998, A&AS, 132, 305 | en_US |
dc.identifier.citedreference | Teräsranta H. et al., 2004, A&A, 427, 769 | en_US |
dc.identifier.citedreference | Teräsranta H., Wiren S., Koivisto P., Saarinen V., Hovatta T., 2005, A&A, 440, 409 | en_US |
dc.identifier.citedreference | Türler M., Courvoisier T. J.‐L., Paltani S., 2000, A&A, 361, 850 | en_US |
dc.identifier.citedreference | Unwin S. C., Cohen M. H., Pearson T. J., Seielstad G. A., Simon R. S., Linfield R. P., Walker R. C., 1983, ApJ, 271, 536 | en_US |
dc.identifier.citedreference | Zensus J. A., Cohen M. H., Unwin S. C., 1995, ApJ, 443, 35 | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.