Spitzer Infrared Spectrograph spectroscopy of the prototypical starburst galaxy NGC 7714

被引：63

作者：

Brandl, BR

Devost, D

Higdon, SJU

Charmandaris, V

Weedman, D

Spoon, HWW

Herter, TL

Hao, L

Bernard-Salas, J

Houck, JR

Armus, L

Soifer, BT

Grillmair, CJ

Appleton, PN

机构：

[1] Leiden Univ, NL-2300 RA Leiden, Netherlands

[2] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA

[3] CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2004年 / 154卷 / 01期

关键词：

galaxies : starburst; infrared : galaxies;

D O I：

10.1086/422101

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present observations of the starburst galaxy NGC 7714 with the Infrared Spectrograph on board the Spitzer Space Telescope. The spectra yield a wealth of ionic and molecular features that allow a detailed characterization of its properties. NGC 7714 has an H II region-like spectrum with strong polycyclic aromatic hydrocarbon emission features. We find no evidence for an obscured active galactic nucleus, and with [Ne III]/[Ne II] approximate to 0.73, NGC 7714 lies near the upper end of normal-metallicity starburst galaxies. With very little silicate absorption and a temperature of the hottest dust component of 340 K, NGC 7714 is the perfect template for a young, unobscured starburst.

引用

页码：188 / 192

页数：5

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