2008A&A...487..567C

Query : 2008A&A...487..567C

2008A&A...487..567C - Astronomy and Astrophysics, volume 487, 567-573 (2008/8-4)

Spitzer mid-infrared study of compact HII regions in the Magellanic Clouds.

CHARMANDARIS V., HEYDARI-MALAYERI M. and CHATZOPOULOS E.

Abstract (from CDS):

We present a study of the mid-infrared properties and dust content of a sample of 27 HII ``blobs'', a rare class of compact HII regions in the Magellanic Clouds. A unique feature of this sample is that even though these HII regions are of high and low excitation they have nearly the same physical sizes ∼1.5-3pc. We base our analysis on archival 3-8µm infrared imagery obtained with the Infrared Array Camera (IRAC) on board the Spitzer Space Telescope. We find that despite their youth, sub-solar metallicity and varied degrees of excitation, the mid-infrared colors of these regions are similar to those of typical HII regions. Higher excitation ``blobs'' (HEBs) display stronger 8µm emission and redder colors than their low-excitation counterparts (LEBs).

Abstract Copyright: ∼

Journal keyword(s): ISM: HII regions - ISM: dust, extinction - infrared: ISM - infrared: stars - galaxies: Magellanic Clouds

Simbad objects: 36

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Number of rows : 36
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 LHA 115-N 10 Y*O 00 44 56.578 -73 10 10.52   14.66 15.1 15.96   B0 42 1
2 LHA 115-N 11 EmO 00 45 02.90 -73 16 40.0   14.36       ~ 19 0
3 LHA 115-N 21 Em* 00 47 48 -73 17.4     14.8     ~ 27 0
4 LHA 115-N 26 PN 00 48 08.624 -73 14 54.62 14.70 15.22 14.31   14.57 ~ 57 1
5 LHA 115-N 31 Y*O 00 48 41.869 -73 26 15.17   14.92 15.1 15.27 15.60 B0 27 0
6 LHA 115-N 33 Em* 00 49 29.32080 -73 26 34.7208   16.28 15.92 15.74 14.70 O6.5-7V 22 0
7 LHA 115-N 32 Y*O 00 49 39.4 -72 48 47           ~ 28 0
8 LHA 115-N 45 Cl* 00 52 01.7 -73 13 19   14.24       ~ 31 0
9 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11145 1
10 LHA 115-N 64 Em* 00 58 24.5 -72 39 59   14.34 14.4     ~ 12 0
11 LHA 115-N 68 PN 00 58 42.86 -72 27 16.7   15.71 15.3   18.920 ~ 23 0
12 LHA 115-N 75 Em* 01 02 28.6 -71 56 34     15.3     ~ 12 0
13 DEM S 117 SFR 01 02 49.0 -71 53 13           ~ 24 0
14 HD 7113 Em* 01 09 12.94464 -73 11 38.8968     11.7     ~ 122 0
15 LHA 115-N 88A HII 01 24 07.823 -73 09 03.77   13.25 12.18     ~ 74 1
16 LHA 115-N 90 HII 01 29 30.15 -73 33 10.5           ~ 64 2
17 NGC 602 Cl* 01 29 32.133 -73 33 38.13     13.018     ~ 90 1
18 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7062 0
19 LHA 120-N 83B HII 04 54 25.2 -69 11 00           ~ 48 1
20 LHA 120-N 88 EmO 04 54 52 -69 23.4           ~ 9 0
21 LHA 120-N 90 EmO 04 55 25 -69 16.1           ~ 15 0
22 NGC 1761 As* 04 56 39 -66 29.0     9.94     ~ 99 0
23 NGC 1763 As* 04 56 51.5 -66 24 25     9.40     ~ 162 3
24 IRAS 04571-6627 mul 04 57 15.5 -66 23 14           ~ 52 1
25 HD 32340 Em* 04 57 16.253 -66 23 20.94   13.11 12.45 14.00   O3-O6V 77 0
26 HD 33540 * 05 04 38.1113422584 -70 54 41.848525116   12.73 12.74 13.89 13.48 O/B2:e 42 0
27 LHA 120-N 105A HII 05 09 34.3 -68 53 45           ~ 57 1
28 HD 269211 Em* 05 12 30.1799582352 -70 24 22.255615476   13.26 13.62     ~ 23 0
29 NGC 1895 Cl* 05 16 53.4 -67 19 51     12.93     ~ 27 0
30 LHA 120-N 197 EmO 05 20 54.5 -71 43 17           ~ 11 0
31 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17428 0
32 LHA 120-N 68 EmO 05 34 37.5 -68 12 37           ~ 9 0
33 LHA 120-N 156 EmO 05 37 40 -69 34.4           ~ 6 0
34 [GSL2002] 122 HII 05 39 46.1 -69 38 37           ~ 23 0
35 LHA 120-N 159 HII 05 39 46.650 -69 45 39.94           ~ 276 2
36 NAME N159 Blob in LMC HII 05 40 04.2 -69 44 43           ~ 38 0

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