Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..938...70i&link_type=abstract
SPECTRAL LINE SHAPES IN ASTROPHYSICS: VI Serbian Conference on Spectral Line Shapes in Astrophysics (VI SCSLSA). AIP Conference
Astronomy and Astrophysics
Astrophysics
Galactic Center, Bar, Circumnuclear Matter, And Bulge, Magnetohydrodynamics And Plasmas
Scientific paper
There are different spectroscopic methods for direct diagnostics of emitting plasma in astrophysical objects, but these methods could not be used in the case of the Broad Line Region (BLR) of Active Galactic Nuclei (AGN). Here we combine the Boltzmann-plot (BP) method [1], [2] and calculations performed with the photoionization code CLOUDY [3] in order to find a simple tool that would only use the observed broad Balmer and helium lines (HeII λ4686 and HeI λ5876) for the temperature diagnostics of the BLR.
Ciroi Stefano
Ilic Dragana
La Mura Giovanni
Popovic Luka C.
Rafanelli Piero
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