The host-galaxy of the gamma-ray Narrow-line Seyfert 1 galaxy 1H~0323+342
| Autor: | León-Tavares, J., Kotilainen, J., Chavushyan, V., Añorve, C., Puerari, I., Cruz-González, I., Patiño-Álvarez, V., Antón, S., Carramiñana, A., Carrasco, L., Guichard, J., Karhunen, K., Olguín-Iglesias, A., Sanghvi, J., Valdes, J. R. |
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| Rok vydání: | 2014 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/0004-637X/795/1/58 |
| Popis: | 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. NIR and optical images are used to investigate the structural properties of the host galaxy of 1H 0323+342; this together with optical spectroscopy allowed us to examine its black hole mass. Based on the 2D multiwavelength surface brightness modeling, we find that, statistically, the best model fit is a combination of a nuclear component and a S\'ersic profile (n~2.8). However, the presence of a disc component (with a small bulge n~1.2) remains also 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 such structure corresponds to an asymmetric ring, likely associated to a recent violent dynamical interaction. We discuss our results on the context of relativistic jets production and galaxy evolution. Comment: 14 pages, 6 figures, accepted for publication in ApJ |
| Databáze: | arXiv |
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