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dc.contributor.authorMerlo, Matthew J.
dc.contributor.authorPerlman, Eric S.
dc.contributor.authorNikutta, Robert
dc.contributor.authorPackham, Christopher C.
dc.contributor.authorElitzur, Moshe
dc.contributor.authorImanishi, Masatoshi
dc.contributor.authorLevenson, Nancy A.
dc.contributor.authorRadomski, James T.
dc.contributor.authorAretxaga, Itziar
dc.date.accessioned2014-08-28T15:27:31Z
dc.date.available2014-08-28T15:27:31Z
dc.date.issued2014-05-16
dc.identifier.citationMerlo, M. J., Perlman, E. S., Nikutta, R., Packham, C., Elitzur, M., Imanishi, M., . . . Aretxaga, I. (2014). Subaru spectroscopy and spectral modeling of cygnus A. Astrophysical Journal, 788(1)en_US
dc.identifier.urihttp://hdl.handle.net/11141/287
dc.description.abstractWe present high angular resolution (∼0.″5) MIR spectra of the powerful radio galaxy, Cygnus A (Cyg A), obtained with the Subaru telescope. The overall shape of the spectra agree with previous high angular resolution MIR observations, as well as previous Spitzer spectra. Our spectra, both on and off nucleus, show a deep silicate absorption feature. The absorption feature can be modeled with a blackbody obscured by cold dust or a clumpy torus. The deep silicate feature is best fit by a simple model of a screened blackbody, suggesting that foreground absorption plays a significant, if not dominant, role in shaping the spectrum of Cyg A. This foreground absorption prevents a clear view of the central engine and surrounding torus, making it difficult to quantify the extent the torus attributes to the obscuration of the central engine, but does not eliminate the need for a torus in Cyg A.en_US
dc.language.isoen_USen_US
dc.rightsThis published article is available in accordance with the publisher's policy. It may be subject to U.S. Copyright Law.en_US
dc.rights.urihttps://aas.org/publications/aas-copyright-policyen_US
dc.titleSubaru spectroscopy and spectral modeling of Cygnus Aen_US
dc.typeArticleen_US
dc.identifier.doi10.1088/0004-637X/788/1/6


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