The Hot Molecular Core of G12.21-0.10: NH3(4,4) Observations

被引：2

作者：

de la Fuente, Eduardo ^{[1
]}

Kurtz, Stanley E. ^{[2
]}

Rodriguez-Rico, Carlos A. ^{[3
]}

Trinidad, Miguel A. ^{[3
]}

Araya, Esteban ^{[4
,5
]}

Kemp, Simon ^{[1
]}

Porras, Alicia ^{[6
]}

Hofner, Peter ^{[4
,5
]}

Franco, Jose ^{[7
]}

机构：

[1] Univ Guadalajara, Inst Astron & Meteorol, Dpto Fis, CUCEI, Guadalajara, Jalisco, Mexico

[2] Univ Nacl Autonoma Mexico, Ctr Radioastron y Astrofis, Mexico City, DF, Mexico

[3] Univ Guanajuato, Dept Astron, Guanajuato, Mexico

[4] Natl Radio Astron Observ, Socorro, NM USA

[5] New Mexico Inst Min & Technol, Dept Phys, Socorro, NM 87801 USA

[6] INAOE, Puebla, Mexico

[7] Univ Nacl Autonoma Mexico, Inst Astron, Mexico City, DF, Mexico

来源：

STELLAR POPULATIONS: PLANNING FOR THE NEXT DECADE | 2010年 / 262期

关键词：

stars: formation; ISM: molecules; radio continuum: ISM;

D O I：

10.1017/S1743921310003030

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In de la Fuente (2007; Ph. D. Thesis), the molecular clump associated with the ultracompact HII region G12.21-0.10 was confirmed as a large, hot, dense Hot; Molecular Core nearby to the ionized gas. The density was confirmed by comparing low resolution NH3(2,2) and (4,4) VLA observations, with other molecular lines and radio continuum observations. These results will be presented in detail in a forthcoming paper (de la Fuente et al. in preparation). In these works, for the first; time, the spatial location of the Hot Molecular Core is presented. Here we present the NH3(4,4) observations from de la Fuente (2007; Ph. D. Thesis), confirming that the hotter and denser gas in the molecular core lies in a compact structure, of smaller scale than the NH3(2,2) emission.

引用

页码：319 / +

页数：2

共 5 条

[1] de la Fuente E., 2007, THESIS U GUADALAJARA
[2] The Extended Emission of Ultracompact HII Regions: An Overview and New Observations
de la Fuente, Eduardo
Kurtz, Stanley E.
Kumar, M. S. N.
Franco, Jose
Porras, Alicia
Kemp, Simon N.
Franco-Balderas, Alfredo
[J]. NEW QUESTS IN STELLAR ASTROPHYSICS II: ULTRAVIOLET PROPERTIES OF EVOLVED STELLAR POPULATIONS, 2009, : 167 - +
[3] DELAFUENTE E, 2010, UNPUB
[4] A survey of water maser emission toward ultracompact HII regions
Hofner, P
Churchwell, E
[J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1996, 120 (02): : 283 - 299
[5] Kurtz S., 2000, Protostars and planets 4, P299

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