2011MNRAS.413.1671F

Query : 2011MNRAS.413.1671F

2011MNRAS.413.1671F - Mon. Not. R. Astron. Soc., 413, 1671-1677 (2011/May-3)

The first gamma-ray outburst of a narrow-line Seyfert 1 galaxy: the case of PMN J0948+0022 in 2010 July.

FOSCHINI L., GHISELLINI G., KOVALEV Y.Y., LISTER M.L., D'AMMANDO F., THOMPSON D.J., TRAMACERE A., ANGELAKIS E., DONATO D., FALCONE A., FUHRMANN L., HAUSER M., KOVALEV Yu.A., MANNHEIM K., MARASCHI L., MAX-MOERBECK W., NESTORAS I., PAVLIDOU V., PEARSON T.J., PUSHKAREV A.B., READHEAD A.C.S., RICHARDS J.L., STEVENSON M.A., TAGLIAFERRI G., TIBOLLA O., TAVECCHIO F. and WAGNER S.

Abstract (from CDS):

We report on a multiwavelength campaign for the radio-loud narrow-line Seyfert 1 (NLS1) galaxy PMN J0948+0022 (z= 0.5846) performed in 2010 July–September and triggered by a high-energy γ-ray outburst observed by the Large Area Telescope onboard the Fermi Gamma-ray Space Telescope. The peak flux in the 0.1–100 GeV energy band exceeded, for the first time in this type of source, the value of ∼10–6 photon/cm2/s, corresponding to an observed luminosity of ∼1048 erg/s. Although the source was too close to the Sun position to organize a densely sampled follow-up, it was possible to gather some multiwavelength data that confirmed the state of high activity across the sampled electromagnetic spectrum. The comparison of the spectral energy distribution of the NLS1 PMN J0948+0022 with that of a typical blazar – such as 3C 273 – shows that the power emitted at γ-rays is extreme.

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): galaxies: individual: PMN J0948+0022 - galaxies: jets - galaxies: Seyfert

Simbad objects: 7

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Number of rows : 7
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 6C 032130+340016 BLL 03 24 41.1612813408 +34 10 45.857918460     15.72 13.1   ~ 314 1
2 QSO B0558-5026 BLL 05 59 47.3916612936 -50 26 52.025952120   15.18 14.97     ~ 307 1
3 QSO J0948+0022 Bla 09 48 57.32005819 +00 22 25.5596984   18.85 18.61 18.17   ~ 350 2
4 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 6022 1
5 QSO B1502+1041 Bla 15 04 24.97978391 +10 29 39.1985309   18.97 18.56 18.94   ~ 634 1
6 QSO B1830-211 Bla 18 33 39.9399138048 -21 03 39.368838780     18.70 21   ~ 724 1
7 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 3004 2

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