Spatial distribution of UIB and Extended Red Emission in Sh 152

S. Darbon (1) , Annie Zavagno (2) , C. Savine , V. Ducci , J.~m. Perrin , J.~p. Sivan

1 DAM/DIF - DAM Île-de-France
2 LAM - Laboratoire d'Astrophysique de Marseille

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 Infrared Bands (UIBs) at 3.3 and 6.2 \ensuremathμm. Other images show the near infrared (7-12 \ensuremathμm) continuous emission of the nebula. The ERE emission is found to coincide with the ionized region and significantly differ from the UIBs location. Also some evidence is found in favor of grains as carriers for ERE.

Mots clés: HII REGIONS; ERE; UIBS

Domaines: Planète et Univers [physics]

S. Darbon, Annie Zavagno, C. Savine, V. Ducci, J.~m. Perrin, et al.. Spatial distribution of UIB and Extended Red Emission in Sh 152. The Universe as Seen by ISO, 1998, Paris, France. pp.667. ⟨hal-03562789⟩