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

页码：923 / U97

页数：20

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