2012A&A...539A..66V


C.D.S. - SIMBAD4 rel 1.7 - 2019.07.16CEST11:11:48

2012A&A...539A..66V - Astronomy and Astrophysics, volume 539A, 66-66 (2012/3-1)

Energetic feedback and 26Al from massive stars and their supernovae in the Carina region.

VOSS R., MARTIN P., DIEHL R., VINK J.S., HARTMANN D.H. and PREIBISCH T.

Abstract (from CDS):

We study the populations of massive stars in the Carina region and their energetic feedback and ejection of 26Al. We did a census of the stellar populations in young stellar clusters within a few degrees of the Carina nebula. For each star we estimated the mass, based on the spectral type and the host cluster age. We used population synthesis to calculate the energetic feedback and ejection of 26Al from the winds of the massive stars and their supernova explosions. We used 7 years of INTEGRAL observations to measure the 26Al signal from the region. The INTEGRAL 26Al signal is not significant with a best-fit value of ∼1.5±1.0x10–5ph/cm2/s, approximately half of the published Compton Gamma Ray Observatory (CGRO) result, but in agreement with the latest CGRO estimates. Our analysis of the stellar populations in the young clusters leads to an expected signal of ∼half the observed value, but the results are consistent within 2σ. We find that the fraction of 26Al ejected in Wolf-Rayet winds is high, and the observed signal is unlikely to be caused by 26Al ejected in supernovae alone, indicating a strong wind ejection of 26Al. Due to the lack of prominent O stars, regions with ages >10Myr are often neglected in studies of OB associations. We find that in the Carina region such clusters contribute significantly to the stellar mass and the energetics of the region.

Abstract Copyright:

Journal keyword(s): stars: abundances - ISM: abundances - stars: winds, outflows - stars: early-type - gamma rays: ISM

CDS comments: Table 2 Feinstein CPD 3502 is CPD-57 3502 in Simbad.

Simbad objects: 38

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Number of rows : 38

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 M 42 HII 05 35 17.3 -05 23 28           ~ 3634 0
2 NAME Ori Region reg 05 35 17.30 -05 23 28.0           ~ 458 0
3 RMC 136 Cl* 05 38 42.396 -69 06 03.36   9.63 9.50     ~ 1660 2
4 NGC 3114 OpC 10 02 36 -60 07.2   4.47 4.2     ~ 163 0
5 Cl Westerlund 2 OpC 10 23 58.1 -57 45 49   11.59 10.5     ~ 259 0
6 WR 21a WR* 10 25 56.5023591737 -57 48 43.517827393     12.67     O2If*/WN5 76 0
7 HD 90657 WR* 10 26 31.4088129340 -58 38 26.179161012 9.53 10.07 9.65 9.84   WN5+O4-6 139 0
8 Cl Loden 153 OpC 10 34 41 -58 07.8           ~ 22 1
9 HD 91943 Pu* 10 35 42.0070286836 -58 11 34.375764723 5.91 6.74 6.70 7.70   B0.7Ib 92 0
10 C 1033-598 OpC 10 35 45.7 -60 07 34   6.53 6.3     ~ 21 0
11 NGC 3293 OpC 10 35 49 -58 13.8   4.84 4.7     ~ 276 0
12 HD 91969 *iC 10 35 49.3175809360 -58 13 27.411203873 5.57 6.41 6.43 7.56   B0Ib 100 0
13 C 1035-584 OpC 10 36 05 -58 43.5           ~ 14 0
14 NGC 3324 OpC 10 37 20 -58 38.5   6.91 6.7     ~ 98 1
15 Cl VDBH 99 OpC 10 37 54 -59 11.0           ~ 42 0
16 HD 92740 WR* 10 41 17.5154230335 -59 40 36.897706569 5.68 6.50 6.42 7.38   WN7h+O9III-V 373 0
17 HD 92809 WR* 10 41 38.3243559450 -58 46 18.721755258 8.95 9.28 9.03 9.60   WC6 133 0
18 HD 92852 *iC 10 41 54.2045706633 -59 06 36.465303377   9.59 9.73     B2V 19 0
19 Cl Bochum 10 OpC 10 42 14.2 -59 08 44   6.40 6.2     ~ 69 0
20 HD 92964 s*b 10 42 40.5663586355 -59 12 56.727932428 5.12 5.78 5.51 5.30 5.00 B2.5Ia 134 0
21 HD 93131 WR* 10 43 52.2575981063 -60 07 04.016913264 5.52 6.43 6.48 7.46   WN6ha-w 267 0
22 Cl Trumpler 14 OpC 10 43 56 -59 33.0   5.70 5.5     ~ 408 0
23 HD 93129A SB* 10 43 57.4584179931 -59 32 51.395115271 6.46 7.478 7.310 7.84   O2If* 140 0
24 HD 93162 WR* 10 44 10.3888220947 -59 43 11.105959983 7.90 8.55 8.80 8.66   O2.5If*/WN6+OB 326 1
25 NGC 3372 HII 10 44 19.0 -59 53 21           ~ 855 2
26 LSWR 4 WR* 10 44 38.0516299704 -58 48 28.804895283   14.95 13.70 13.39   WC6+OB 33 0
27 Cl Trumpler 15 OpC 10 44 43 -59 22.0   7.41 7.0     ~ 166 0
28 * eta Car Em* 10 45 03.5362075818 -59 41 04.053436648 6.37 6.82 6.21 4.90 4.41 OBepec 2136 0
29 Cl Trumpler 16 OpC 10 45 10 -59 43.0   5.35 5.0     ~ 408 0
30 C 1045-598 OpC 10 47 15.2 -60 05 51   8.16 7.9     ~ 65 0
31 HD 94546 WR* 10 53 44.8196302 -59 30 46.694249 10.38 10.94 10.51 10.48   WN4+O8V 105 0
32 WRAY 15-682 WR* 10 53 59.5776214569 -60 26 44.358376205   11.64 10.85 10.56   WN11h 132 3
33 HD 95435 WR* 11 00 00.7206077473 -57 48 59.273968690   11.78 11.61 11.67   WC6 51 0
34 NAME ASSOC II SCO As* 16 15 -24.2           ~ 1064 1
35 NAME Cyg Complex reg 20 32 +45.0           ~ 501 0
36 Ass Cyg OB 2 As* 20 33.2 +41 19           ~ 744 0
37 NAME Galactic Ridge ? ~ ~           ~ 401 1
38 NAME Carina Region reg ~ ~           ~ 141 0

    Equat.    Gal    SGal    Ecl

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2019.07.16-11:11:48

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