2007A&A...461..565M

Query : 2007A&A...461..565M

2007A&A...461..565M - Astronomy and Astrophysics, volume 461, 565-569 (2007/1-2)

Low-excitation blobs in the Magellanic Clouds.

MEYNADIER F. and HEYDARI-MALAYERI M.

Abstract (from CDS):

We study an unknown, or very poorly known, interstellar HII component in the Magellanic Clouds. This is the first study ever devoted to this class of objects, which we call low-excitation blobs (LEBs). We used low-dispersion spectroscopy carried out at ESO to obtain emission line intensities of Hα, Hβ, and [OIII] (λλ4959+5007) for 15 objects in the Large Magellanic Cloud and 14 objects in the Small Magellanic Cloud.
Result. are displayed in excitation ([OIII]/Hβ ratio) versus Hβ luminosity diagrams. We show the presence of an LEB component in the Magellanic Clouds and study its relationship with the already known class of high-excitation blobs (HEBs). The newly found LEBs are lower excitation counterparts of HEBs and are powered by less massive exciting stars. Further study of LEBs is expected to provide new pieces of information for a better understanding the low mass end of the upper initial mass function in the Magellanic Clouds.

Abstract Copyright: ∼

Journal keyword(s): stars: early-type - galaxies: Magellanic Clouds - ISM: HII regions

CDS comments: Paragraph 4 LHA 120-N 105A-IR not identified.

Simbad objects: 46

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Number of rows : 46
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 1 PN 00 23 58.6295947968 -73 38 03.974747928           ~ 47 0
2 LHA 115-N 9 PN 00 43 36.6894984096 -73 02 26.704240836   14.66 14.4 15.87 15.35 O3-4 38 0
3 LHA 115-N 10 Y*O 00 44 56.578 -73 10 10.52   14.66 15.1 15.96   B0 42 1
4 LHA 115-N 11 EmO 00 45 02.90 -73 16 40.0   14.36       ~ 19 0
5 LHA 115-N 21 Em* 00 47 48 -73 17.4     14.8     ~ 27 0
6 LHA 115-N 26 PN 00 48 08.624 -73 14 54.62 14.70 15.22 14.31   14.57 ~ 57 1
7 LHA 115-N 29 PN 00 48 36.526 -72 58 00.91 17.72 16.60 16.12 16.5 16.44 ~ 49 0
8 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
9 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
10 LHA 115-N 32 Y*O 00 49 39.4 -72 48 47           ~ 28 0
11 LHA 115-N 47 PN 00 51 58.311 -73 20 31.87     16.158   16.17 ~ 49 0
12 LHA 115-N 45 Cl* 00 52 01.7 -73 13 19   14.24       ~ 31 0
13 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11145 1
14 LHA 115-N 61 HII 00 57 29.96 -72 32 24.0   14.78 14.6     ~ 26 0
15 LHA 115-N 64 Em* 00 58 24.5 -72 39 59   14.34 14.4     ~ 12 0
16 LHA 115-N 68 PN 00 58 42.86 -72 27 16.7   15.71 15.3   18.920 ~ 23 0
17 LHA 115-N 70 PN 00 59 16.1329481088 -72 01 59.841527196   16.07 16.016   16.916 ~ 46 0
18 LHA 115-N 75 Em* 01 02 28.6 -71 56 34     15.3     ~ 12 0
19 DEM S 117 SFR 01 02 49.0 -71 53 13           ~ 24 0
20 LHA 115-N 73 Sy* 01 04 39.3063007080 -75 48 24.764931288       15.52 13.88 K0/2e 22 0
21 HD 7113 Em* 01 09 12.94464 -73 11 38.8968     11.7     ~ 122 0
22 LHA 115-N 88A HII 01 24 07.823 -73 09 03.77   13.25 12.18     ~ 74 1
23 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7062 0
24 Brey 3a WR* 04 53 30.0791072664 -69 17 49.385662368 13.000 14.398 14.267 14.79 12.791 WC9 38 0
25 LHA 120-N 83B HII 04 54 25.2 -69 11 00           ~ 48 1
26 LHA 120-N 88 EmO 04 54 52 -69 23.4           ~ 9 0
27 LHA 120-N 90 EmO 04 55 25 -69 16.1           ~ 15 0
28 IRAS 04571-6627 mul 04 57 15.5 -66 23 14           ~ 52 1
29 HD 32340 Em* 04 57 16.253 -66 23 20.94   13.11 12.45 14.00   O3-O6V 77 0
30 HD 33540 * 05 04 38.1113422584 -70 54 41.848525116   12.73 12.74 13.89 13.48 O/B2:e 42 0
31 LHA 120-N 105A HII 05 09 34.3 -68 53 45           ~ 57 1
32 HD 269211 Em* 05 12 30.1799582352 -70 24 22.255615476   13.26 13.62     ~ 23 0
33 NGC 1895 Cl* 05 16 53.4 -67 19 51     12.93     ~ 27 0
34 LHA 120-N 197 EmO 05 20 54.5 -71 43 17           ~ 11 0
35 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17428 0
36 LHA 120-N 68 EmO 05 34 37.5 -68 12 37           ~ 9 0
37 M 42 HII 05 35 17 -05 23.4           ~ 4074 0
38 LHA 120-N 156 EmO 05 37 40 -69 34.4           ~ 6 0
39 NAME Ori A MoC 05 38 -07.1           ~ 3011 0
40 [JHS86] N160A-9 HII 05 39 43.3 -69 38 51           ~ 23 0
41 NAME N159 Blob in LMC HII 05 40 04.2 -69 44 43           ~ 38 0
42 LHA 120-N 177 HII 05 41 34.5 -70 01 19           ~ 7 0
43 LBN 196.49-01.60 HII 06 14 38.3 +13 49 41           ~ 166 1
44 RCW 34 HII 08 56 28.1 -43 05 58   10.5 11.21     ~ 96 0
45 SH 2-152 HII 22 58 40.8107767416 +58 46 59.226036024           ~ 138 1
46 IC 1470 HII 23 05 09.9 +60 14 31   11.5       ~ 173 2

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