@article{10902/27025,
year = {2011},
url = {https://hdl.handle.net/10902/27025},
abstract = {We report far-infrared (FIR) imaging of the Seyfert 2 galaxy NGC 3081 in the range 70–500 µm, obtained with an unprecedented angular resolution, using the Herschel Space Observatory instruments PACS and SPIRE. The 11 kpc (∼70 arcsec) diameter star-forming ring of the galaxy appears resolved up to 250 µm. We extracted IR (1.6–500 µm) nuclear fluxes, that is active nucleus-dominated fluxes, and fitted them with clumpy torus models, which successfully reproduce the FIR emission with small torus sizes. Adding the FIR data to the near- and mid-IR spectral energy distribution (SED) results in a torus radial extent of Ro= 4+2− 1 pc, as well as in a flat radial distribution of the clouds (i.e. the q parameter). At wavelengths beyond 200 µm, cold dust emission at T= 28 ± 1 K from the circumnuclear star-forming ring of 2.3 kpc (∼15 arcsec) in diameter starts making a contribution to the nuclear emission. The dust in the outer parts of the galaxy is heated by the interstellar radiation field (19 ± 3 K).},
organization = {CRA acknowledges financial support from STFC (ST/G001758/1) and from the Spanish Ministry of Science and Innovation (MICINN) through project Consolider-Ingenio 2010 Programme grant CSD2006-00070: First Science with the GTC. AMPG and JIGS acknowledge the Spanish Ministry of Science and Innovation (MICINN) through project AYA2008-06311-C02-01/02. AAR acknowledges the Spanish Ministry of Science and Innovation through projects AYA2010-18029 (Solar Magnetism and Astrophysical Spectropolarimetry). AAH and PE acknowledges support from the Spanish Plan Nacional de Astronom´ıa y Astrof´ısica under grant AYA2009-05705-E. MP acknowledges Junta de Andaluc´ıa and Spanish Ministry of Science and Innovation through projects PO8-TIC-03531 and AYA2010-15169. PACS has been developed by a consortium of institutes led by MPE (Germany) and including UVIE (Austria); KU Leuven, CSL, IMEC (Belgium); CEA, LAM (France); MPIA (Germany); INAF-IFSI/OAA/OAP/OAT, LENS, SISSA (Italy); IAC (Spain). This development has been supported by the funding agencies BMVIT (Austria), ESA-PRODEX (Belgium), CEA/CNES (France), DLR (Germany), ASI/INAF (Italy) and CICYT/MCYT (Spain). SPIRE has been developed by a consortium of institutes led by Cardiff University (UK) and including University of Lethbridge (Canada); NAOC (China); CEA, LAM (France); IFSI, University of Padua (Italy); IAC (Spain); Stockholm Observatory (Sweden); Imperial College London, RAL, UCL-MSSL, UKATC, University of Sussex (UK); and Caltech, JPL, NHSC, University of Colorado (USA). This development has been supported by national funding agencies: CSA (Canada); NAOC (China); CEA, CNES, CNRS (France); ASI (Italy); MCINN (Spain); SNSB (Sweden); STFC (UK) and NASA (USA). We finally acknowledge the anonymous referee for the useful comments.},
publisher = {Oxford University Press},
publisher = {Monthly Notices of the Royal Astronomical Society: Letters 2011, 417,  L46-L50},
title = {Resolving the nuclear dust distribution of the Seyfert 2 galaxy NGC 3081},
author = {Ramos Almeida, C. and Sánchez-Portal, M. and Pérez García, A.M. and Acosta Pulido, José and Castillo, M. and Asensio Ramos, A. and González Serrano, José Ignacio and Alonso-Herrero, A. and Rodríguez Espinosa, J. M. and Hatziminaoglou, E. and Coia, D. and Valtchanov, I. and Povic, M. and Esquej, P. and Packham, C. and Altieri, B.},
}