Molecular Hydrogen Emission from Protoplanetary Disks
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Astrophysics, abstract
astro-ph/0505126
From: Hideko Nomura [view email]
Date: Fri, 6 May 2005 13:06:36 GMT (127kb)
Molecular Hydrogen Emission from Protoplanetary Disks
Authors:
H. Nomura,
T. J. Millar (The University of Manchester)
Comments: 19 pages, accepted for publication in Astronomy and Astrophysics
We have modeled self-consistently the density and temperature profiles of gas
and dust in protoplanetary disks, taking into account irradiation from a
central star. Making use of this physical structure, we have calculated the
level populations of molecular hydrogen and the line emission from the disks.
As a result, we can reproduce the observed strong line spectra of molecular
hydrogen from protoplanetary disks, both in the ultraviolet (UV) and the
near-infrared, but only if the central star has a strong UV excess radiation.
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