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https://research.matf.bg.ac.rs/handle/123456789/3062| Title: | Some Spectroscopic Methods for Astrophysical Plasma Research | Authors: | Popović, Luka Dimitrijević, M S Mediavilla, E Danezis, E Lyratzi, E Bon, E Ilić, Dragana Jovanović, P Theodossiou, E Dačić, M |
Affiliations: | Astronomy Astronomy |
Keywords: | Circumstellar disks;Active Galactic Nuclei (AGN);absorption line;spectral line shape;Spectroscopy;Plasmas | Issue Date: | 2004 | Rank: | M33 | Related Publication(s): | The Physics of Ionized Gases: 22nd Summer School and International Symposium on the Physics of Ionized Gases | Journal: | AIP Conference Proceedings | Conference: | Summer School and International Symposium on the Physics of Ionized Gases (22 ; 2004 ; Bajina Bašta) | Abstract: | Here we will present some spectroscopic methods for emission gas research in the emission line region of Active Galactic Nuclei (AGNs): (1) We will demonstrate the possibility to use the Boltzmann‐plot method to estimate the physical conditions in the broad line regions (BLRs); (2) We will discuss the applicability of so called “Gaussian method” for spectral line shape investigation of narrow line regions (NLRs) and BLRs; (3) We will present a method to fit the line profiles with a kinematically complex model. We apply a two‐component model assuming that the line wings originate in a very broad line region (VBLR) and the line core in an intermediate line region (ILR) of AGNs. The VBLR is assumed to be an accretion disk and the ILR a spherical emission region; (4) Also, a model for fitting of the broad absorption lines in quasars will be discussed |
URI: | https://research.matf.bg.ac.rs/handle/123456789/3062 | DOI: | 10.1063/1.1843530 |
| Appears in Collections: | Research outputs |
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