THE HOST GALAXY OF THE GAMMA-RAY NARROW-LINE SEYFERT 1 GALAXY 1H 0323+342

Titulo: 
THE HOST GALAXY OF THE GAMMA-RAY NARROW-LINE SEYFERT 1 GALAXY 1H 0323+342
Autores: 
Tavares, JL; Kotilainen, J; Chavushyan, V; Anorve, C; Puerari, I; Cruz-Gonzalez, I; Patino-Alvarez, V; Anton, S; Carraminana, A; Carrasco, L; Guichard, J; Karhunen, K; Olguin-Iglesias, A; Sanghvi, J; Valdes, J
Resumen: 
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 Sersic profile (n similar to 2.8). However, the presence of a disk component (with a small bulge n similar to 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.
Autor principal: 
Tavares, JL
Autor/es del IAA: 
Anton, S.
DOI: 
10.1088/0004-637X/795/1/58
Revista: 
ASTROPHYSICAL JOURNAL
Fecha de publicación: 
2014/11/01
Volumen: 
795
Issue: 
1
Tipo de documento: 
Article
Palabras clave: 
galaxies: evolution; galaxies: individual (1H 0323+342); galaxies: interactions; galaxies: jets; galaxies: Seyfert; gamma rays: galaxies
Número de artículo: 
58