H3+ in Warm, Diffuse Gas of the Central Molecular Zone

被引：0

作者：

Oka, Takeshi ^{[1
]}

Geballe, Thomas R. ^{[1
]}

Goto, Miwa ^{[1
]}

Usuda, Tomonori ^{[1
]}

Indriolo, Nick ^{[1
]}

McCall, Benjamin J. ^{[1
]}

机构：

[1] Univ Chicago, Dept Astron & Astrophys, 5640 S Ellis Ave, Chicago, IL 60637 USA

来源：

GALACTIC CENTER: A WINDOW TO THE NUCLEAR ENVIRONMENT OF DISK GALAXIES | 2011年 / 439卷

关键词：

GALACTIC-CENTER; CLOUDS;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Observations of infrared spectra of H-3(+) and CO have revealed warm (T similar to 250 K) and diffuse (n similar to 100 cm(-3)) gas toward 15 stars from Sgr A* to 30 pc east. This adds a new category of gas to the three previously known. We have now extended the observations to wider regions of the Central Molecular Zone (CMZ) and found two remarkable sightlines approximately 140 pc west and 85 pc east of Sgr A* with strong H-3(+) spectra giving further evidence for the ubiquity and the large volume filling factor of the newly found gas in the CMZ.

引用

页码：18 / +

页数：2

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