2018A&A...614L...1L


Query : 2018A&A...614L...1L

2018A&A...614L...1L - Astronomy and Astrophysics, volume 614, L1-1 (2018/6-1)

Radio jets and gamma-ray emission in radio-silent narrow-line Seyfert 1 galaxies.

LAHTEENMAKI A., JARVELA E., RAMAKRISHNAN V., TORNIKOSKI M., TAMMI J., VERA R.J.C. and CHAMANI W.

Abstract (from CDS):

We have detected six narrow-line Seyfert 1 (NLS1) galaxies at 37 GHz that were previously classified as radio silent and two that were classified as radio quiet. These detections reveal the presumption that NLS1 galaxies labelled radio quiet or radio silent and hosted by spiral galaxies are unable to launch jets to be incorrect. The detections are a plausible indicator of the presence of a powerful, most likely relativistic jet because this intensity of emission at 37 GHz cannot be explained by, for example, radiation from supernova remnants. Additionally, one of the detected NLS1 galaxies is a newly discovered source of gamma rays and three others are candidates for future detections.

Abstract Copyright: © ESO 2018

Journal keyword(s): galaxies: active - galaxies: Seyfert - gamma rays: galaxies

VizieR on-line data: <Available at CDS (J/A+A/614/L1): table1.dat nls1-37.dat>

Simbad objects: 15

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Number of rows : 15
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 3C 84 Sy2 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 3835 3
2 MJV 09737 Rad 09 01 09.225 +46 57 21.19           ~ 1 0
3 US 2152 Sy1 09 01 13.2304512480 +46 57 34.700741568   19.69 19.36     ~ 29 0
4 SDSS J102906.68+555625.2 Sy1 10 29 06.6863465784 +55 56 25.208590020   19.55 19.33     ~ 21 0
5 Mrk 421 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2553 1
6 7C 1219+2830 BLL 12 21 31.6904439888 +28 13 58.500308172   16.81 16.11 14.24   ~ 826 1
7 2MASS J12284479+5017513 Sy1 12 28 44.8187524128 +50 17 51.242638020   18.86 18.39     ~ 28 0
8 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 6784 3
9 2MASSI J1232200+495721 Sy1 12 32 20.1171538776 +49 57 21.778344180   17.99 17.73     ~ 43 0
10 1RXS J150916.0+613646 Sy1 15 09 16.1805341496 +61 37 16.754346372   19.39 19.00     ~ 13 0
11 2MASS J15102005+5547221 Sy1 15 10 20.0414986560 +55 47 22.003387944   19.48 18.93     ~ 14 0
12 2MASX J15220541+3934407 Sy1 15 22 05.3512796184 +39 34 41.567954304   16.26 15.55     ~ 13 0
13 2MASX J16410006+3454527 Sy1 16 41 00.0964151352 +34 54 52.658959788   19.36 18.58     ~ 22 0
14 GRS G081.70 +00.50 SFR 20 39 01.6 +42 19 38           O4.5 1016 0
15 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2412 1

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2022.12.04-06:58:36

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