A new galactic 6 cm formaldehyde maser

被引：18

作者：

Araya, E

Hofner, P

Goss, WM

Kurtz, S

Linz, H

Olmi, L

机构：

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

[2] Natl Radio Astron Observ, Socorro, NM 87801 USA

[3] Univ Nacl Autonoma Mexico, Ctr Radioastron & Astrofis, Morelia 58089, Michoacan, Mexico

[4] Max Planck Inst Astron, D-69117 Heidelberg, Germany

[5] CNR, Ist Radioastron, Sez Firenze, I-50125 Florence, Italy

[6] Univ Puerto Rico, Dept Phys, San Juan, PR 00931 USA

来源：

ASTROPHYSICAL JOURNAL | 2006年 / 643卷 / 01期

关键词：

HII regions; ISM : individual (G23.71-0.20); ISM : molecules; masers; radio lines : ISM; stars : formation;

D O I：

10.1086/504840

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the detection of a new H2CO maser in the massive star-forming region G23.71 - 0.20 (IRAS 18324 - 0820). This is the fifth region in the Galaxy where H2CO maser emission has been found. The new H2CO maser is located toward a compact H II region and is coincident in velocity and position with 6.7 GHz methanol masers and with an IR source as revealed by Spitzer IRAC data from GLIMPSE. The coincidence with an IR source and 6.7 GHz methanol masers suggests that the maser is in close proximity to an embedded massive protostar. Thus, the detection of H2CO maser emission toward G23.71 - 0.20 supports the trend that H2CO 6 cm masers trace molecular material very near young massive stellar objects.

引用

页码：L33 / L36

页数：4

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