Some Spectroscopic Methods for Astrophysical Plasma Research

Details Some Spectroscopic Methods for Astrophysical Plasma Research Some Spectroscopic Methods for Astrophysical Plasma Research

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aipc..740..497p&link_type=abstract

THE PHYSICS OF IONIZED GASES: 22nd Summer School and International Symposium on the Physics of Ionized Gases; Invited Lectures,

Physics

1

Magnetohydrodynamics And Plasmas, Galactic Nuclei, Circumnuclear Matter, And Bulges

Scientific paper

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.

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