BLR chemistry redux

Details BLR chemistry redux BLR chemistry redux

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aipc..254..588c&link_type=abstract

In: Testing the AGN paradigm; Proceedings of the 2nd Annual Topical Astrophysics Conference, Univ. of Maryland, College Park, Oc

Astronomy and Astrophysics

Astronomy

Atomic Excitations, Hydrogen Atoms, Interstellar Chemistry, Quasars, Spectral Line Width, Ultraviolet Astronomy, Astronomical Models, Cosmic Dust, Ionizing Radiation, Photoionization

Scientific paper

It is shown that at BLR (broad line region) column densities higher than 10 exp 23/sq cm, the formation of H2 is enhanced significantly by the presence of dust. The radiative association of H(n = 1) and H*(n = 2) does not contribute much to increasing the abundance of H2 in the neutral zone. It is suggested that several excited states of hydrogen may be important in H2 formation via associative ionization.

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