Spatial distribution of unidentified infrared bands and extended red emission in the compact galactic HII region Sh 152

Details Spatial distribution of unidentified infrared bands and extended red emission in the compact galactic HII region Sh 152 Spatial distribution of unidentified infrared bands and extended red emission in the compact galactic HII region Sh 152

1998-12-02

arxiv.org/abs/astro-ph/9812044v1

Astronomy and Astrophysics

Astrophysics

3 pages, 4 figures, to be published in the proceedings of the colloquium "The universe as seen by ISO" help in Paris, October

Scientific paper

We present visible and near IR images of the compact HII region Sh 152. Some of these images reveal the presence of Extended Red Emission (ERE) around 698 nm and emission from Unidentified Infra Red Bands (UIRBs) at 3.3 and 6.2 micron. Other images show the near infrared (7-12 micron) continuous emission of the nebula. The ERE emission is found to coincide with the ionized region and significantly differ from the UIRBs location. Also some evidence is found in favor of grains as carriers for ERE.

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