2001A&A...372..667T


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.05CEST06:34:03

2001A&A...372..667T - Astronomy and Astrophysics, volume 372, 667-675 (2001/6-3)

Detection and study of the compact HII region N26A-B in the Small Magellanic Cloud.

TESTOR G.

Abstract (from CDS):

This paper presents new imagery and spectrophotometric results for the N26 HII region in the Small Magellanic Cloud. The observations using monochromatic images and low-resolution spectra (3700-10000Å) reveal a compact and complex nebula composed of two cores A and B where A in the region of Hβ is brighter than B by a factor ∼5 and distance of 2''. The core A of FWHM ∼2.1" or 0.6pc presents a high excitation [O III] λλ5007+4959/Hβ up to ∼8 and a high reddening E(B-V)≤0.6, while the core B is less excited but has a higher reddening ≥0.8. Each core contains one exciting source; the brighter one should be responsible for the high excitation of A. The apparent spectral type of the two cores ranges from O7 to O9 V and the gas electron density and temperature were derived from the absorption and emission-line intensities. The total mass of the ionized gas is evaluated at 13M. The chemical abundances of He, O, N, Ne, S, and Ar were computed. These abundances seem consistent with average abundances for SMC HII regions, except N that appears slightly overabundant. N26A-B is comparable to the objects previously observed in the LMC and SMC that we have called ``blobs''.

Abstract Copyright:

Journal keyword(s): galaxies: Magellanic Clouds - ISM: individual objects: N26A-B, N25 (SMC) - ISM: HII regions - ISM: dust, extinction - stars: early-type

Nomenclature: Table 3: [T2001] NNN N=37 among (Nos 10-287).

CDS comments: in ref list Davies et al 1976MmRAS..81...89D instead of MNRAS. Coordinates for stars in Table 1 of this paper appear to have a systematic error (B. Skiff 12/11/03). A correction of +0s.4 in RA and +11" i n DEC has been applied.

Simbad objects: 64

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Number of rows : 64

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 LHA 115-N 21 Em* 00 47 48 -73 17.4     14.8     ~ 26 0
2 LHA 115-N 23 Em* 00 47 57.4 -73 17 38     15     ~ 22 0
3 OGLE SMC720.28.039935 EB* 00 47 58.7220389428 -73 14 28.192813643   14.88 14.918   15.035 ~ 2 0
4 [T2001] 287 * 00 47 59.07 -73 13 57.9   15.10 15.18     ~ 1 0
5 SV* HV 11133 V* 00 48 00.73 -73 14 38.5   17.08 16.35     ~ 2 0
6 [T2001] 135 * 00 48 00.91 -73 15 06.9   17.89 16.68     ~ 1 0
7 OGLE J004801.18-731523.5 Be? 00 48 01.18 -73 15 23.5   17.135 17.095   16.831 ~ 3 0
8 [T2001] 265 * 00 48 01.98 -73 13 56.9   16.54 16.51     ~ 1 0
9 NGC 267 HII 00 48 02.6 -73 16 39           ~ 51 0
10 2MASS J00480271-7314289 RB? 00 48 02.713 -73 14 28.99 19.00 18.64 17.30   15.93 ~ 2 0
11 2MASS J00480294-7315195 RB? 00 48 02.94 -73 15 19.6 18.78 17.55 16.25   14.89 ~ 2 0
12 2MASS J00480357-7315592 RB? 00 48 03.5927814581 -73 15 59.171220073 19.11 17.94 16.48   15.19 ~ 2 0
13 2MASS J00480369-7315330 * 00 48 03.7191444885 -73 15 32.959069492   16.47 15.55     ~ 1 1
14 2MASS J00480503-7315534 * 00 48 05.0446528953 -73 15 53.476912468   15.90 16.01     ~ 1 0
15 2MASS J00480722-7315424 RB? 00 48 07.22 -73 15 42.5 18.32 17.96 16.43   15.20 ~ 2 0
16 OGLE SMC-CEP-1115 cC* 00 48 08.0768875719 -73 14 19.359136583   17.413 16.862   15.944 ~ 7 0
17 [T2001] 224 * 00 48 08.24 -73 14 23.2   17.61 17.45     ~ 1 0
18 [MA93] 205 Em* 00 48 08.47 -73 14 46.7   16.74 16.2     ~ 3 0
19 LHA 115-N 26 PN 00 48 08.624 -73 14 54.62 14.70 15.22 14.31   14.57 ~ 53 1
20 DEM S 38 HII 00 48 09.1 -73 14 09           ~ 18 0
21 LHA 115-N 25 Cl* 00 48 09.12 -73 14 19.1           ~ 37 1
22 LIN 106 Em* 00 48 09.2551884497 -73 14 15.992346701   13.93 13.75 14.70 14.47 O8V 32 0
23 [T2001] 219 * 00 48 09.33 -73 14 24.3   17.07 17.19     ~ 1 0
24 2MASS J00480943-7315401 * 00 48 09.43 -73 15 40.1   16.53 16.64     ~ 1 0
25 [T2001] 277 * 00 48 09.53 -73 13 53.5   18.33 16.81   15.83 ~ 2 0
26 [T2001] 160 * 00 48 09.69 -73 14 55.7   17.46 17.34     ~ 1 0
27 [T2001] 110 LP* 00 48 09.8621817755 -73 15 18.546355229   17.67 15.68   13.21 ~ 6 0
28 2MASS J00481005-7315463 * 00 48 10.06 -73 15 46.4   17.93 17.03     ~ 1 0
29 2MASS J00481048-7316015 * 00 48 10.5080184158 -73 16 01.545455442   16.33 16.00     ~ 1 0
30 [T2001] 123 * 00 48 11.02 -73 15 12.8   16.46 16.34     ~ 1 0
31 [T2001] 200 * 00 48 11.4103376861 -73 14 33.303870328   15.33 15.05 14.98 14.55 ~ 3 0
32 LHA 115-N 12 HII 00 48 12 -73 16.2           ~ 31 0
33 2MASS J00481232-7315385 RB? 00 48 12.3438488026 -73 15 38.494165765 18.69 17.95 16.73   15.65 ~ 2 0
34 [T2001] 261 * 00 48 12.88 -73 14 02.2   17.96 17.33     ~ 1 0
35 [T2001] 75 * 00 48 13.1336714414 -73 15 31.508903968 18.04 16.43 14.83   13.50 ~ 3 0
36 2MASS J00481488-7315067 RB? 00 48 14.8904468294 -73 15 06.793955025 19.85 18.84 17.10   15.54 ~ 2 0
37 [T2001] 109 RB? 00 48 16.9996475218 -73 15 18.630669618 19.77 18.36 17.03   15.74 ~ 2 0
38 [T2001] 86 RB? 00 48 17.92 -73 15 28.8 18.19 18.00 17.09   16.28 ~ 2 0
39 2MASS J00481799-7314036 RB? 00 48 18.00 -73 14 03.7 18.49 18.35 17.10   16.23 ~ 2 0
40 AzV 28F * 00 48 18.9654438914 -73 14 59.122112761   13.14 13.14 13.33 13.105 B5 4 0
41 2MASS J00481959-7316023 * 00 48 19.59 -73 16 02.3     16.61     ~ 1 1
42 2MASS J00481973-7314022 * 00 48 19.7634639792 -73 14 02.324750035   18.49 17.36     ~ 1 0
43 LHA 115-N 27 Em* 00 48 24.0 -73 05 50           ~ 58 0
44 SMC AB 2 WR* 00 48 30.8442971820 -73 15 45.831809104 13.23 14.23 14.43   14.52 WN4.5/O3 47 0
45 LHA 115-N 28 Em* 00 48 34.5 -73 15 40           ~ 12 0
46 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9440 1
47 LIN 384 HXB 01 01 47.89 -71 55 51.2 13.26 14.40 14.47   14.30 B0e 19 0
48 HD 7113 Em* 01 09 13.066 -73 11 38.92     11.7     ~ 117 0
49 LHA 115-N 88A HII 01 24 07.823 -73 09 03.77   13.25 12.18     ~ 69 1
50 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5665 1
51 LHA 120-N 83B HII 04 54 25.2 -69 11 00           ~ 47 1
52 IRAS 04571-6627 mul 04 57 15.5 -66 23 14           ~ 52 1
53 HD 32340 Em* 04 57 16.253 -66 23 20.94   13.11 12.45 14.00   O3-O6V 77 0
54 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14826 1
55 NGC 2079 Cl* 05 39 39.0 -69 46 24           ~ 63 0
56 NGC 2080 HII 05 39 42.6 -69 38 50     10.42     ~ 92 1
57 [JHS86] N160A-9 HII 05 39 43.3 -69 38 51           ~ 23 0
58 [GSL2002] 122 HII 05 39 46.1 -69 38 37           ~ 23 0
59 L 595-22 PM* 05 56 24.7419816722 -27 51 32.362978169   12.31 12.38     sdG 142 0
60 NAME E 7 Region reg 17 22 +45.0           ~ 15 0
61 UCAC2 12523752 * 17 27 21.6259701707 -45 01 25.717300609   13.814 12.498 12.13 11.10 ~ 5 0
62 UCAC2 12523779 * 17 27 24.1310890425 -45 01 50.834961799   14.84 13.26 14.22 13.39 ~ 4 0
63 UCAC2 12523846 * 17 27 29.0824883126 -45 02 32.184718810   14.15 12.99 12.78   ~ 3 0
64 Feige 110 HS* 23 19 58.3995050606 -05 09 56.170282845 10.360 11.45 11.50 11.970 12.145 sdO8VIIIHe5 552 1

    Equat.    Gal    SGal    Ecl

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2020.07.05-06:34:03

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