2025AJ....170..201D

Query : 2025AJ....170..201D

2025AJ....170..201D - Astron. J., 170, 201 (2025/October-0)

Classifying Compact Radio Emission in Nearby Galaxies: A 10 GHz Study of Active Galactic Nuclei, Supernovae, Anomalous Microwave Emission, and Star-forming Regions.

DAGE K.C., KOCH E.W., TREMOU E., OH K., SETT S., EIBENSTEINER C., LINDEN S.T., MAHIDA A.D., MURPHY E.J., ALDHALEMI M.R., BUSTANI Z., ISMAIL FAWAZ M., HARFF H.J., KHALYLEH A., McBRIDE T., MASON J., PRESTON A., RINEHART C., VINSON E., PANURACH T., PLOTKIN R.M. and RIVERA SANDOVAL L.

Abstract (from CDS):

We present 115 compact radio point sources in three galaxies, NGC 5474, NGC 4631, and M51, taken in the most extended (A-)configuration of the Karl G. Jansky Very Large Array at 10 GHz. Several of these compact radio point sources have diffuse counterparts identified in previous multiband studies of resolved radio continuum emission. We find compact counterparts to eight star forming regions, four anomalous microwave emission candidates, and one supernova remnant (SN 2011dh). Nine of the compact radio sources match X-ray counterparts, the majority of which are background galaxies. These AGN are all within the D25 (isophotal diameter) of the host galaxy and might act as contaminants for X-ray binary population studies, highlighting the need for high-resolution multiband imaging. This study showcases the broad number of science cases that require sensitive radio facilities, like the upcoming Square Kilometre Array and the planned next generation Very Large Array.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Active galactic nuclei - Supernova remnants - X-ray binary stars

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR. // All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 20

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Number of rows : 20
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 TYC 8-572-1 * 00 14 09.8802898752 +05 59 15.830878812   12.95 11.68 12.22   ~ 2 0
2 NGC 4361 PN 12 24 30.7510527528 -18 47 05.567336304   12.8 13.2     [WC] 407 0
3 NGC 4631 GiC 12 42 08.009 +32 32 29.44   9.78 9.19 9.10   ~ 1154 3
4 [MCK2007] 2 SNR 13 29 36.60 +47 11 05.4           ~ 4 0
5 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
6 CXOU J132954.1+471130 HXB 13 29 54.28 +47 11 29.9           ~ 5 0
7 CXOU J132954.9+470922 HXB 13 29 54.97 +47 09 22.6           ~ 7 0
8 [KLK2016] X279 SFR 13 29 55.87 +47 11 44.6           ~ 7 0
9 RX J133000+47159 X 13 29 59.52 +47 15 58.2           ~ 12 0
10 SN 2011dh SN* 13 30 05.10555 +47 10 10.9227           SNIIb 445 1
11 CXOM51 J133011.0+471041 HXB 13 30 11.02 +47 10 41.0           ~ 5 0
12 2CXO J133016.0+471024 rG 13 30 16.02650 +47 10 24.3525           ~ 4 0
13 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
14 NAME M101 Group GrG 14 03 +54.3           ~ 112 1
15 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
16 NAME NGC 5474-X1 UX? 14 04 59.74 +53 38 09.0           ~ 11 0
17 CXO J140500.0+533813 HXB 14 04 59.99 +53 38 13.5           ~ 2 0
18 NGC 5474 GiP 14 05 01.608 +53 39 43.95   11.28 10.79     ~ 475 1
19 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
20 NAME NGC 4631 Group GrG ~ ~           ~ 21 0

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