Molecular hydrogen emission from protoplanetary disks

被引：118
|
作者：
Nomura, H [1 ]
Millar, TJ [1 ]
机构：
[1] Univ Manchester, Sch Phys & Astron, Manchester M60 1QD, Lancs, England
来源：
ASTRONOMY & ASTROPHYSICS | 2005年 / 438卷 / 03期
关键词：
line : formation; molecular processes; radiative transfer; planetary systems : protoplanetary disks;
D O I：
10.1051/0004-6361:20052809
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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.
引用
收藏
页码：923 / U97
页数：20
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