Testing thermal reprocessing in active galactic nuclei accretion discs
dc.contributor.author | Cackett, Edward M. | en_US |
dc.contributor.author | Horne, Keith | en_US |
dc.contributor.author | Winkler, Hartmut | en_US |
dc.date.accessioned | 2010-06-01T19:21:03Z | |
dc.date.available | 2010-06-01T19:21:03Z | |
dc.date.issued | 2007-09-11 | en_US |
dc.identifier.citation | Cackett, Edward M.; Horne, Keith; Winkler, Hartmut (2007). "Testing thermal reprocessing in active galactic nuclei accretion discs." Monthly Notices of the Royal Astronomical Society 380(2): 669-682. <http://hdl.handle.net/2027.42/72494> | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.issn | 1365-2966 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/72494 | |
dc.description.abstract | The thermal reprocessing hypothesis in active galactic nuclei (AGN), where extreme ultraviolet/X-ray photons are reprocessed by the accretion disc into optical/UV photons, predicts wavelength-dependent time-delays between the optical continuum at different wavelengths. Recent photometric monitoring by Sergeev et al. has shown that the time-delay is observed in 14 AGN, and generally seen to increase with increasing wavelength, as predicted in the reprocessing scenario. We fit the observed time-delays and optical spectral energy distribution using a disc reprocessing model. The model delivers estimates for the nuclear reddening, the product of black hole mass and accretion rate, and the distance to each object. However, the distances at face value give H 0 = 44 ± 5 km s −1 Mpc −1 – a factor of 1.6 smaller than generally accepted. We discuss the implications of this on the reprocessing model. | en_US |
dc.format.extent | 727963 bytes | |
dc.format.extent | 3109 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Blackwell Publishing Ltd | en_US |
dc.rights | 2007 The Authors. Journal compilation © 2007 RAS | en_US |
dc.subject.other | Galaxies: Active | en_US |
dc.subject.other | Galaxies: Nuclei | en_US |
dc.subject.other | Galaxies: Seyfert | en_US |
dc.title | Testing thermal reprocessing in active galactic nuclei accretion discs | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Astronomy | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Dean McLaughlin Postdoctoral Fellow, Department of Astronomy, University of Michigan, Ann Arbor, MI 48109, USA | en_US |
dc.contributor.affiliationother | SUPA, School of Physics and Astronomy, University of St Andrews, Fife KY16 9SS | en_US |
dc.contributor.affiliationother | Department of Physics, University of Johannesburg, PO Box 524, 2006 Auckland Park, South Africa | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/72494/1/j.1365-2966.2007.12098.x.pdf | |
dc.identifier.doi | 10.1111/j.1365-2966.2007.12098.x | en_US |
dc.identifier.source | Monthly Notices of the Royal Astronomical Society | en_US |
dc.identifier.citedreference | Anderson K. S., 1970, ApJ, 162, 743 | en_US |
dc.identifier.citedreference | Antonucci R., 1993, ARA&A, 31, 473 | en_US |
dc.identifier.citedreference | Blandford R. D., McKee C. F., 1982, ApJ, 255, 419 | en_US |
dc.identifier.citedreference | Boksenberg A., Shortridge K., Allen D. A., Fosbury R. A. E., Penston M. V., Savage A., 1975, MNRAS, 173, 381 | en_US |
dc.identifier.citedreference | Bonamente M., Joy M. K., LaRoque S. J., Carlstrom J. E., Reese E. D., Dawson K. S., 2006, ApJ, 647, 25 | en_US |
dc.identifier.citedreference | Carroll S. M., Press W. H., Turner E. L., 1992, ARA&A, 30, 499 | en_US |
dc.identifier.citedreference | Cohen R. D., 1983, ApJ, 273, 489 | en_US |
dc.identifier.citedreference | Collier S., Horne K., Wanders I., Peterson B. M., 1999, MNRAS, 302, L24 | en_US |
dc.identifier.citedreference | Collier S. et al., 2001, ApJ, 561, 146 | en_US |
dc.identifier.citedreference | Collier S. J., 1998, PhD thesis, Univ. St Andrews | en_US |
dc.identifier.citedreference | Collier S. J. et al., 1998, ApJ, 500, 162 | en_US |
dc.identifier.citedreference | Collin S., CoupÉ S., Dumont A.-M., Petrucci P.-O., RÓżańska A., 2003, A&A, 400, 437 | en_US |
dc.identifier.citedreference | de Grijp M. H. K., Keel W. C., Miley G. K., Goudfrooij P., Lub J., 1992, A&AS, 96, 389 | en_US |
dc.identifier.citedreference | Doroshenko V. T., Sergeev S. G., Merkulova N. I., Sergeeva E. A., Golubinsky Y. V., Pronik V. I., Okhmat N. N., 2005a, Astrophysics, 48, 156 | en_US |
dc.identifier.citedreference | Doroshenko V. T., Sergeev S. G., Merkulova N. I., Sergeeva E. A., Golubinsky Y. V., Pronik V. I., Okhmat N. N., 2005b, Astrophysics, 48, 304 | en_US |
dc.identifier.citedreference | Frank J., King A., Raine D. J., 2002, Accretion Power in Astrophysics, 3rd edn. Cambridge Univ. Press, Cambridge | en_US |
dc.identifier.citedreference | Freedman W. L. et al., 2001, ApJ, 553, 47 | en_US |
dc.identifier.citedreference | Fukugita M., Shimasaku K., Ichikawa T., 1995, PASP, 107, 945 | en_US |
dc.identifier.citedreference | Gaskell C. M., 2006, in Ho L. C., Wang J.-M., eds, The Central Engine of Active Galactic Nuclei. Astron. Soc. Pac., San Francisco, preprint ( astro-ph/0612474 ) | en_US |
dc.identifier.citedreference | Gaskell C. M., Ferland G. J., 1984, PASP, 96, 393 | en_US |
dc.identifier.citedreference | Gaskell C. M., Peterson B. M., 1987, ApJS, 65, 1 | en_US |
dc.identifier.citedreference | Gaskell C. M., Goosmann R. W., Antonucci R. R. J., Whysong D. H., 2004, ApJ, 616, 147 | en_US |
dc.identifier.citedreference | Glass I. S., 2004, MNRAS, 350, 1049 | en_US |
dc.identifier.citedreference | Gunn J. E., Stryker L. L., 1983, ApJS, 52, 121 | en_US |
dc.identifier.citedreference | Koratkar A. P., Gaskell C. M., 1991, ApJ, 370, L61 | en_US |
dc.identifier.citedreference | Koski A. T., 1978, ApJ, 223, 56 | en_US |
dc.identifier.citedreference | Krolik J. H., Horne K., Kallman T. R., Malkan M. A., Edelson R. A., Kriss G. A., 1991, ApJ, 371, 541 | en_US |
dc.identifier.citedreference | Minezaki T., Yoshii Y., Kobayashi Y., Enya K., Suganuma M., Tomita H., Aoki T., Peterson B. A., 2004, ApJ, 600, L35 | en_US |
dc.identifier.citedreference | Morris S. L., Ward M. J., 1988, MNRAS, 230, 639 | en_US |
dc.identifier.citedreference | Nandy K., Thompson G. I., Jamar C., Monfils A., Wilson R., 1975, A&A, 44, 195 | en_US |
dc.identifier.citedreference | Osterbrock D. E., 1977, ApJ, 215, 733 | en_US |
dc.identifier.citedreference | Osterbrock D. E., Koski A. T., 1976, MNRAS, 176, 61 p | en_US |
dc.identifier.citedreference | Peterson B. M., 1993, PASP, 105, 247 | en_US |
dc.identifier.citedreference | Peterson B. M. et al., 2004, ApJ, 613, 682 | en_US |
dc.identifier.citedreference | Phillips M. M., 1978, ApJS, 38, 187 | en_US |
dc.identifier.citedreference | Press W. H., Teukolsky S. A., Vetterling W. T., Flannery B. P., 1992, Numerical Recipes in fortran. The Art of Scientific Computing, 2nd edn. Cambridge Univ. Press, Cambridge, — c1992 | en_US |
dc.identifier.citedreference | Rafanelli P., Schulz H., 1991, Astron. Nachr., 312, 167 | en_US |
dc.identifier.citedreference | Rengstorf A. W. et al., 2004, ApJ, 606, 741 | en_US |
dc.identifier.citedreference | Reynolds C. S., Ward M. J., Fabian A. C., Celotti A., 1997, MNRAS, 291, 403 | en_US |
dc.identifier.citedreference | Robinson A., Perez E., 1990, MNRAS, 244, 138 | en_US |
dc.identifier.citedreference | Schechter P. L., 2005, in Mellier Y., Meylan G., eds, IAU Symp., The Hubble Constant from Gravitational Lens Time Delays, Cambridge University Press, Cambridge, UK, p. 281 | en_US |
dc.identifier.citedreference | Schlegel D. J., Finkbeiner D. P., Davis M., 1998, ApJ, 500, 525 | en_US |
dc.identifier.citedreference | Schmidt R. W., Allen S. W., Fabian A. C., 2004, MNRAS, 352, 1413 | en_US |
dc.identifier.citedreference | Seaton M. J., 1979, MNRAS, 187, 73 p | en_US |
dc.identifier.citedreference | Sergeev S. G., Doroshenko V. T., Golubinskiy Y. V., Merkulova N. I., Sergeeva E. A., 2005, ApJ, 622, 129 | en_US |
dc.identifier.citedreference | Stephens S. A., 1989, AJ, 97, 10 | en_US |
dc.identifier.citedreference | Stirpe G. M. et al., 1994, ApJ, 425, 609 | en_US |
dc.identifier.citedreference | Suganuma M. et al., 2004, ApJ, 612, L113 | en_US |
dc.identifier.citedreference | Suganuma M. et al., 2006, ApJ, 639, 46 | en_US |
dc.identifier.citedreference | Uttley P., Edelson R., McHardy I. M., Peterson B. M., Markowitz A., 2003, ApJ, 584, L53 | en_US |
dc.identifier.citedreference | Vanden Berk D. E. et al., 2004, ApJ, 601, 692 | en_US |
dc.identifier.citedreference | Veilleux S., Osterbrock D. E., 1987, ApJS, 63, 295 | en_US |
dc.identifier.citedreference | Wanders I. et al., 1997, ApJS, 113, 69 | en_US |
dc.identifier.citedreference | Welsh W. F., 1999, PASP, 111, 1347 | en_US |
dc.identifier.citedreference | White R. J., Peterson B. M., 1994, PASP, 106, 879 | en_US |
dc.identifier.citedreference | Winkler H., 1992, MNRAS, 257, 677 | en_US |
dc.identifier.citedreference | Winkler H., 1997, MNRAS, 292, 273 | en_US |
dc.identifier.citedreference | Winkler H., Glass I. S., van Wyk F., Marang F., Spencer Jones J. H., Buckley D. A. H., Sekiguchi K., 1992, MNRAS, 257, 659 | en_US |
dc.identifier.citedreference | Wood-Vasey W. M. et al., 2007, ApJ, in press, astroph/0701041 | 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.