Triplet spectra of H2O masers and protoplanetary disks

被引：2
|
作者：
Lekht, EE
Richards, AMS
机构：
[1] Inst Nacl Astrofis Opt & Electr, Puebla 72840, Mexico
[2] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119992, Russia
[3] Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England
来源：
ASTRONOMY REPORTS | 2003年 / 47卷 / 04期
关键词：
D O I：
10.1134/1.1568136
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
An analysis of the H2O maser emission associated with protoplanetary disks is presented. Triplet H2O spectra can be formed at certain stages in the evolution of Keplerian disks. The dependence of the mass of the central star in the Keplerian disk on the disk radius is derived. The calculations are based on the distribution of the water-vapor molecules (maser spots). In S140, the observed elongated maser spots (chains) with a smoothly varying line-of-sight velocity are interpreted as protoplanetary structures with a small intrinsic rotation. (C) 2003 MAIK "Nauka/Interperiodica".
引用
收藏
页码：326 / 332
页数：7
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