2000A&A...364..723D


Query : 2000A&A...364..723D

2000A&A...364..723D - Astronomy and Astrophysics, volume 364, 723-731 (2000/12-2)

Extended red emission and unidentified infrared bands in the galactic compact HII region Sh 152.

DARBON S., ZAVAGNO A., PERRIN J.-M., SAVINE C., DUCCI V. and SIVAN J.-P.

Abstract (from CDS):

We present visible and infrared images and low-dispersion visible spectra of the galactic compact HII region Sh 152. The spatial distribution of the Extended Red Emission (ERE) over the nebula is found to coincide with that of the ionized hydrogen emission and to differ from that of the Unidentified InfraRed Bands (UIRBs) emission at 3.3 and 6.2µm. This result and other considerations are in favour of grains as carriers of the ERE. It is shown that nanosized silicon particles could account for the ERE in terms of luminescence, an interpretation which, however, suffers from some limitations.

Abstract Copyright:

Journal keyword(s): scattering - ISM: individual objects: Sh 138 - ISM: dust, extinction - ISM: HII regions - infrared: ISM: lines and bands

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5583 6
2 SH 2-138 HII 22 32 45.7 +58 28 20           ~ 109 2
3 SH 2-152 HII 22 58 40.8107767416 +58 46 59.226036024           ~ 134 1
4 [HM90b] S152 1 * ~ ~           O9V 2 0

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2022.05.23-10:38:56

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