Understanding Active Galactic Nuclei using near-infrared high angular resolution polarimetry II: Preliminary results

In this second research note of a series of two, we present the first near-infrared results we obtained when modeling Active Galactic Nuclei (AGN). Our first proceedings showed the comparison between the MontAGN and STOKES Monte Carlo codes. Now we use our radiative transfer codes to simulate the po...

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Published in:arXiv.org 2016-10
Main Authors: Marin, F, Grosset, L, Goosmann, R, Gratadour, D, Rouan, D, Clénet, Y, Pelat, D, Rojas Lobos, P Andrea
Format: Article
Language:English
Subjects:
Active galactic nuclei
Angular resolution
Astronomical models
Computer simulation
Dichroism
Infrared imagery
Linear polarization
Outflow
Polarimetry
Radiative transfer
Toruses
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Grosset, L
Goosmann, R
Gratadour, D
Rouan, D
Clénet, Y
Pelat, D
Rojas Lobos, P Andrea
description In this second research note of a series of two, we present the first near-infrared results we obtained when modeling Active Galactic Nuclei (AGN). Our first proceedings showed the comparison between the MontAGN and STOKES Monte Carlo codes. Now we use our radiative transfer codes to simulate the polarization maps of a prototypical, NGC 1068-like, type-2 radio-quiet AGN. We produced high angular resolution infrared (1 micron) polarization images to be compared with recent observations in this wavelength range. Our preliminary results already show a good agreement between the models and observations but cannot account for the peculiar linear polarization angle of the torus such as observed. Gratadour et al. 2015 found a polarization position angle being perpendicular to the bipolar outflows axis. Further work is needed to improve the models by adding physical phenomena such as dichroism and clumpiness.
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subjects Active galactic nuclei
Angular resolution
Astronomical models
Computer simulation
Dichroism
Infrared imagery
Linear polarization
Outflow
Polarimetry
Radiative transfer
Toruses
title Understanding Active Galactic Nuclei using near-infrared high angular resolution polarimetry II: Preliminary results
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