Spatially Resolved Circumnuclear Dust in Centaurus A

  • Karovska M
  • Marengo M
  • Elvis M
  • et al.
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Abstract

In this paper we present results from our exploratory mid-IR study of Centaurus A circumnuclear environment using high-angular resolution imaging at the Magellan 6.5m telescope with the MIRAC/BLINC camera. We detected emission from a compact region surrounding the nuclear source, and obtained photometry at 8.8 microns and in the N band. Our analysis suggests that the nuclear region is resolved with a size of approximately 3 pc. The mid-IR emission from this region is likely associated with cool dust with an estimated temperature of \~160 K, surrounding the central ``hidden'' AGN. We discuss the characteristics of this emission in relation to other mid-IR observations and the implications on models of dust formation in AGNs.

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APA

Karovska, M., Marengo, M., Elvis, M., Fazio, G. G., Hora, J. L., Hinz, P. M., … Mamajek, E. (2003). Spatially Resolved Circumnuclear Dust in Centaurus A. The Astrophysical Journal, 598(2), L91–L94. https://doi.org/10.1086/380816

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