2025ApJ...978...22F

Query : 2025ApJ...978...22F

2025ApJ...978...22F - Astrophys. J., 978, 22 (2025/January-1)

VLA 22 GHz Imaging of Massive Star Formation in Local Wolf-Rayet Galaxies.

FERRARO N.G., TURNER J.L., BECK S.C., ALEXANI E., INDREI R., WELCH B.M. and XIE T.

Abstract (from CDS):

We present 22 GHz imaging of regions of massive star formation within the Local Wolf-Rayet Galaxy Sample, a NSF Karl G. Jansky Very Large Array survey of 30 local galaxies showing spectral features of Wolf-Rayet (WR) stars. These spectral features are present in galaxies with young super star clusters (SSCs), and are an indicator of large concentrations of massive stars. We present a catalog of 92 individually identified regions of likely free-free emission associated with potential young SSCs located in these WR galaxies. The free-free fluxes from these maps allow extinction-free estimates of the Lyman continuum rates, masses, and luminosities of the emission regions. Thirty-nine of these regions meet the minimum Lyman continuum rate to contain at least once SSC, and 29 of these regions could contain individual SSCs massive enough to test specific theories on star formation and feedback inhibition in SSCs, requiring follow-up observations at higher spatial resolution. The resulting catalog provides sources for future molecular line and IR studies into the properties of SSC formation.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Star formation - Star forming regions - Young star clusters - Star clusters - H II regions - Young massive clusters - Radio continuum emission

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 - 2026 		#notes
1 NGC 1156 GiG 02 59 42.8528847264 +25 14 28.352017320 12.13 12.32 11.74     ~ 323 1
2 Z 327-9 GiG 03 50 15.0019023336 +70 05 40.328180844   15.5       ~ 75 1
3 UGC 2886 AG? 03 53 03.90 +34 57 29.0   18       ~ 12 0
4 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
5 NGC 2537 H2G 08 13 14.643 +45 59 23.25 12.18 12.50 11.69 11.66   ~ 314 2
6 NGC 2541 GiG 08 14 40.1160678912 +49 03 42.021679932 12.03 12.26 11.80     ~ 333 1
7 NGC 3003 EmG 09 48 35.580 +33 25 17.83   12.3       ~ 225 0
8 NGC 3265 GiG 10 31 06.768 +28 47 47.98   13.87 13.54     ~ 175 1
9 Z 266-55 AGN 10 32 31.956 +54 24 03.53 13.29 13.66 13.13 12.71 12.27 ~ 381 1
10 NGC 3310 AGN 10 38 45.85707 +53 30 11.8940   12.45 12.15     ~ 809 1
11 NGC 3353 AGN 10 45 22.390 +55 57 37.36 12.90 13.25 12.79     ~ 378 1
12 NGC 3423 SyG 10 51 14.3245691976 +05 50 24.158965920   12.1       ~ 191 0
13 NGC 3451 H2G 10 54 20.859 +27 14 22.76   13.5       ~ 132 0
14 IC 691 AGN 11 26 44.31576 +59 09 19.5120   14.2       ~ 106 0
15 Mrk 1450 AGN 11 38 35.6552554896 +57 52 26.636623644   15.5       ~ 130 1
16 Z 97-159 H2G 11 50 02.7462827640 +15 01 23.396910168   15.4       ~ 92 0
17 Z 12-111 Sy1 11 52 37.19 -02 28 09.9   14.79   14.09 14.9 ~ 184 0
18 IC 745 AGN 11 54 12.2719925760 +00 08 11.823367524   14.59 14.19     ~ 139 1
19 NGC 4216 AGN 12 15 54.444 +13 08 57.84 11.51 10.99 10.01     ~ 424 1
20 NGC 4236 GiG 12 16 42.118 +69 27 45.25 10.97 10.58 10.08 9.90   ~ 415 1
21 NGC 4369 AGN 12 24 36.204 +39 22 58.73   12.3       ~ 210 1
22 NGC 4389 GiG 12 25 35.098 +45 41 04.81   12.64   11.46   ~ 157 0
23 NGC 4449 EmG 12 28 11.118 +44 05 36.81 10.11 9.98 9.64 9.45   ~ 1192 1
24 NGC 4449N G 12 28 16 +44 06.8           ~ 3 0
25 NGC 4490 GiG 12 30 34.5 +41 38 26 10.03 10.22 9.79     ~ 616 3
26 NGC 4656 GiP 12 43 57.6889089768 +32 10 13.345914504   10.96 10.52     ~ 385 3
27 NGC 4670 AG? 12 45 17.150 +27 07 31.76   12.6 12.90     ~ 271 0
28 NGC 4691 Sy1 12 48 13.60 -03 19 57.7 11.59 11.66 11.08 11.8 11.3 ~ 263 2
29 NGC 4713 GiG 12 49 57.8802780576 +05 18 40.933127196   12.3       ~ 320 1
30 NGC 4808 GiG 12 55 48.940 +04 18 14.74   12.5       ~ 244 1
31 NGC 4861 H2G 12 59 02.340 +34 51 33.98   12.90 12.32     ~ 389 2
32 NGC 4900 AGN 13 00 39.1193785512 +02 30 05.154593868   12.8       ~ 267 1
33 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2778 2
34 NGC 5253 rG 13 39 55.990 -31 38 24.11 11.48 10.94 10.49 10.33 13.47 ~ 1421 4
35 W 49n HII 19 10 13.2 +09 06 12           ~ 497 3
36 NAME Cas A SNR 23 23 26.0 +58 48 41     14.30     ~ 3033 1

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