2018MNRAS.477.3552O

Query : 2018MNRAS.477.3552O

2018MNRAS.477.3552O - Mon. Not. R. Astron. Soc., 477, 3552-3566 (2018/July-1)

Far-infrared-radio correlation and magnetic field strength in star-forming early-type galaxies.

OMAR A. and PASWAN A.

Abstract (from CDS):

A tight far-infrared-radio correlation similar to that in star-forming late-type galaxies is also indicated in star-forming blue early-type galaxies, in which the nuclear optical-line emissions are primarily due to star-forming activities without a significant contribution from active galactic nuclei. The average value of far-infrared to 1.4 GHz radio flux ratio commonly represented as the q parameter is estimated to be 2.35 ± 0.05 with a scatter of 0.16 dex. The average star formation rate estimated using 1.4 GHz radio continuum is ∼6 M☉ yr–1 in good agreement with those estimated using far-infrared and H α luminosities. The radio emission is detected mainly from central region that could be associated with the star-forming activities, most likely triggered by recent tidal interactions. The average thermal contribution to total radio flux is estimated to be ∼12 per cent. The average value of the magnetic field strengths in the star-forming early-type galaxies is estimated to be 12+11–4µG. These magnetic fields are very likely generated via fast amplification in small-scale turbulent dynamos acting in the starbursting regions.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: magnetic field - galaxies: star formation - radio continuum: galaxies

Simbad objects: 55

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Number of rows : 55
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 2MASX J01035875+1514505 EmG 01 03 58.7453499552 +15 14 50.132857704           ~ 22 0
2 IRAS F01390+1325 Sy1 01 41 43.18509 +13 40 32.8649   17.37 16.88     ~ 39 0
3 LEDA 1152587 G 03 01 26.2416174384 -00 04 25.552863228   16.80   15.60   ~ 18 0
4 2MASX J07472310+2220409 LSB 07 47 23.1169345536 +22 20 41.230704660           ~ 12 0
5 Z 118-20 G 07 54 20.5998804528 +25 51 33.288477012   15.6       ~ 20 0
6 LEDA 1531380 G 07 56 08.6656555224 +17 22 50.404965240           ~ 17 0
7 LEDA 1568705 G 07 56 36.3197475264 +18 44 17.613378636           ~ 13 0
8 LEDA 139044 G 07 59 12.38304 +53 33 25.9575   16.0       ~ 23 0
9 SDSS J081020.14+561226.2 G 08 10 20.1413460720 +56 12 26.233941024           ~ 7 0
10 NVSS J081755+470714 rG 08 17 56.2645107344 +47 07 19.573096877     16.5     ~ 19 0
11 LEDA 2424487 G 08 29 09.1221249096 +52 49 06.857587128           ~ 9 0
12 LEDA 1954122 G 08 43 46.7342971824 +31 34 52.533883704           ~ 8 0
13 FIRST J085311.4+370807 rG 08 53 11.4071452128 +37 08 06.595492632           ~ 20 0
14 LEDA 3087129 G 09 24 29.5727366760 +53 41 37.872917844           ~ 10 0
15 LEDA 3092305 G 10 16 28.3627970232 +03 35 02.809647096           ~ 15 0
16 LEDA 1859977 G 10 20 34.9234191048 +29 14 10.745175624     16.08     ~ 11 0
17 LEDA 1807525 G 10 25 24.7041710328 +27 25 06.246455052           ~ 12 0
18 Z 9-41 rG 10 26 54.5931640296 -00 32 29.429500308   15.5   14.838   ~ 37 0
19 LEDA 3404309 G 10 54 37.8928446288 +55 39 45.865633392           ~ 10 0
20 SDSS J112326.88-004248.8 G 11 23 26.9771573976 -00 42 48.906424548   16.757   15.604   ~ 16 1
21 Z 185-78 rG 11 31 22.0425432048 +32 42 22.760042328   15.4       ~ 26 0
22 LEDA 2272981 G 11 52 04.9889626392 +45 57 06.565398732           ~ 8 0
23 NVSS J120616+633818 rG 12 06 17.0883286872 +63 38 19.071142728           ~ 18 0
24 2MASX J12064725+0117100 GiC 12 06 47.2184025480 +01 17 09.848618808   16.471   15.348   ~ 30 0
25 Z 13-83 G 12 08 23.5237621536 +00 06 36.994323096   15.2       ~ 34 0
26 LEDA 1355018 G 12 20 23.1198886224 +08 51 37.184095800           ~ 11 0
27 LEDA 2538114 G 12 20 37.4399948328 +56 28 46.121841516           ~ 10 0
28 Mrk 217 H2G 12 35 02.6398711584 +66 22 33.390111936   16.0       ~ 20 0
29 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1465 2
30 M 94 SyG 12 50 53.0737971432 +41 07 12.900884628 9.15 8.96 8.24 7.78   ~ 1476 2
31 Z 43-97 GiG 13 01 41.4408904920 +04 40 49.927340424   15.4       ~ 22 0
32 Z 161-50 GiC 13 26 20.7969466848 +31 41 59.770484520   15.732       ~ 19 0
33 Z 73-76 rG 13 47 47.7163044312 +11 16 26.937251004   15.6       ~ 22 0
34 NGC 5373 G 13 57 07.4603906376 +05 15 06.798004632   15.3       ~ 33 0
35 LEDA 2416525 G 14 02 48.7958920032 +52 30 00.742216572   17.0       ~ 14 0
36 Z 18-51 rG 14 06 56.3747832240 -01 35 40.957148616   15.1   14.511   ~ 40 0
37 LEDA 3087201 G 14 07 47.2049917248 +52 38 09.652575912           ~ 12 0
38 FIRST J141433.2+404523 rG 14 14 33.2301694536 +40 45 22.965144300           ~ 16 0
39 LEDA 2078954 G 14 17 32.5862662488 +36 20 19.109069268           ~ 10 0
40 Z 296-10 rG 14 32 22.7044148328 +56 51 08.358389100   15.6       ~ 38 0
41 LEDA 1338406 G 14 37 32.9468323800 +08 04 42.994482888           ~ 15 0
42 LEDA 2628657 G 14 51 15.6534145200 +62 00 14.668718436           ~ 20 0
43 LEDA 3088129 G 14 53 23.3956879848 +39 04 13.559684556           ~ 17 0
44 LEDA 1249854 G 15 17 19.7380444392 +03 19 18.923673900           ~ 11 0
45 LEDA 1138317 EmG 15 23 47.1064348872 -00 38 22.943238684   16.85   15.40   ~ 19 0
46 LEDA 1543633 G 15 44 51.4582618608 +17 51 22.496233896           ~ 12 0
47 Z 222-54 GiG 15 50 00.4651943232 +41 58 11.207456796   15.5       ~ 22 0
48 LEDA 3088922 G 15 53 35.5593244800 +32 18 20.492185932           ~ 13 0
49 LEDA 1515973 G 16 04 39.4066870296 +16 44 43.560446568           ~ 7 0
50 LEDA 1614660 G 16 07 53.98005 +20 03 03.8192           ~ 15 0
51 2MASX J16181870+3406397 GiC 16 18 18.6843615192 +34 06 40.161112812   16.5       ~ 18 0
52 Z 110-6 EmG 16 44 30.7515165528 +19 56 26.697342624   15.40       ~ 53 0
53 NVSS J165116+280650 rG 16 51 16.6814042016 +28 06 52.622270712           ~ 10 0
54 LEDA 1818668 G 17 23 24.8706649824 +27 48 46.269449712           ~ 14 0
55 LEDA 993205 Sy2 22 15 16.1835828192 -09 15 47.524684032   15.90   14.74   ~ 25 0

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