The near-IR shape of the big blue bump emission from quasars: under the hot dust emission

dc.creatorKishimoto, Makoto
dc.creatorAntonucci, Robert
dc.creatorBlaes, Omer
dc.date2006-12-20
dc.date.accessioned2026-07-07T07:40:15Z
dc.date.available2026-07-07T07:40:15Z
dc.descriptionOne primary difficulty in understanding the nature of the putative accretion disk in the central engine of AGNs is that some of its key intrinsic spectral signatures are buried under the emissions from the surrounding regions, i.e. the broad line region (BLR) and the obscuring torus. We argue here that these signatures can be revealed by using optical and near-IR polarization. At least in some quasars, the polarization is seen only in the continuum and is not shared by emission lines. In this case, the polarized flux is considered to show the intrinsic spectrum interior to the BLR, removing off the emissions from the BLR and torus. We have used this polarization to reveal the Balmer-edge feature and near-IR spectral shape of the central engine, both of which are important for testing the fundamental aspects of the models.
dc.description4 pages, 2 figures. Conference proceedings to appear in "The Central Engine of Active Galactic Nuclei", ed. L. C. Ho and J.-M. Wang (San Francisco: ASP)
dc.identifierhttps://arxiv.org/abs/astro-ph/0612579
dc.identifierhttp://arxiv.org/abs/astro-ph/0612579
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/121722
dc.subjectAstrophysics
dc.titleThe near-IR shape of the big blue bump emission from quasars: under the hot dust emission
dc.typetext

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