DOI:
10.1088/0004-637X/795/1/58
Authors:
León Tavares J., Kotilainen J., Chavushyan V., Añorve C., Puerari I., Cruz-González I., Patiño-Alvarez V., Antón S., Carramiñana A., Carrasco L., Guichard J., Karhunen K., Olguín-Iglesias A., Sanghvi J., Valdes J.
Abstract:
We present optical and near-infrared (NIR) imaging data of the radio-loud, narrow-line Seyfert 1 galaxy 1H 0323+342, which shows intense and variable gamma-ray activity discovered by the Fermi satellite with the Large Area Telescope. Near-infrared and optical images are used to investigate the structural properties of the host galaxy of 1H 0323+342; this together with optical spectroscopy allows us to examine its black hole mass. Based on two-dimensional (2D) multiwavelength surface-brightness modeling, we find that statistically, the best model fit is a combination of a nuclear component and a Sérsic profile (n ∼ 2.8). However, the presence of a disk component (with a small bulge n ∼ 1.2) also remains a possibility and cannot be ruled out with the present data. Although at first glance a spiral-arm-like structure is revealed in our images, a 2D Fourier analysis of the imagery suggests that this structure corresponds to an asymmetric ring, likely associated with a recent violent dynamical interaction. We discuss our results in the context of relativistic jet production and galaxy evolution. © 2014. The American Astronomical Society. All rights reserved..
URL:
https://ui.adsabs.harvard.edu/#abs/2014ApJ...795...58L/abstract
Keywords:
galaxies: evolution; galaxies: individual (1H 0323+342); galaxies: interactions; galaxies: jets; galaxies: Seyfert; gamma rays: galaxies