Spitzer Infrared Spectrograph Spectroscopy of the Prototypical Starburst Galaxy NGC 7714

September 2004 • 2004ApJS..154..188B

Authors • Brandl, B. R. • Devost, D. • Higdon, S. J. U. • Charmandaris, V. • Weedman, D. • Spoon, H. W. W. • Herter, T. L. • Hao, L. • Bernard-Salas, J. • Houck, J. R. • Armus, L. • Soifer, B. T. • Grillmair, C. J. • Appleton, P. N.

Abstract • 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 [NeIII]/[NeII]~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.

Links

• SIMBAD http://simbad.u-strasbg.fr/simbo.pl?bibcode=2004ApJS..154..188B
• PREPRINT http://arxiv.org/abs/astro-ph/0406171
• NED https://ned.ipac.caltech.edu/uri/NED::InRefcode/2004ApJS..154..188B
• DATA https://irsa.ipac.caltech.edu/bibdata/2004/B/2004ApJS..154..188B.html
• ELECTR https://doi.org/10.1086%2F422101
• SPIRES http://inspirehep.net/search?p=find+eprint+astro-ph/0406171