2013ApJ...765...56W

Query : 2013ApJ...765...56W

2013ApJ...765...56W - Astrophys. J., 765, 56 (2013/March-1)

Chandra, Keck, and VLA observations of the Crab nebula during the 2011-April gamma-ray flare.

WEISSKOPF M.C., TENNANT A.F., ARONS J., BLANDFORD R., BUEHLER R., CARAVEO P., CHEUNG C.C., COSTA E., DE LUCA A., FERRIGNO C., FU H., FUNK S., HABERMEHL M., HORNS D., LINFORD J.D., LOBANOV A., MAX C., MIGNANI R., O'DELL S.L., ROMANI R.W., STRIANI E., TAVANI M., TAYLOR G.B., UCHIYAMA Y. and YUAN Y.

Abstract (from CDS):

We present results from our analysis of Chandra X-Ray Observatory, W. M. Keck Observatory, and Karl G. Jansky Very Large Array (VLA) images of the Crab Nebula that were contemporaneous with the γ-ray flare of 2011 April. Despite hints in the X-ray data, we find no evidence for statistically significant variations that pinpoint the specific location of the flares within the Nebula. The Keck observations extend this conclusion to the "inner knot," i.e., the feature within an arcsecond of the pulsar. The VLA observations support this conclusion. We also discuss theoretical implications of the γ-ray flares and suggest that the most dramatic γ-ray flares are due to radiation-reaction-limited synchrotron emission associated with sudden, dissipative changes in the current system sustained by the central pulsar.

Abstract Copyright: ∼

Journal keyword(s): gamma rays: ISM - infrared: ISM - ISM: individual (Crab Nebula, M1) - magnetic reconnection - radio continuum: ISM - X-rays: individual (Crab Nebula, M1)

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 M 1 SNR 05 34 30.9 +22 00 53           ~ 6212 1
2 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5271 0
3 PKS 0531+19 rG 05 34 44.51221055 +19 27 21.4860450   17.7       ~ 56 1
4 ICRF J054236.1+495107 Sy1 05 42 36.13789710 +49 51 07.2337139   18.45 17.80 17.210   ~ 1502 1
5 NVSS J055932+235354 Rad 05 59 32.03313313 +23 53 53.9267334           ~ 49 1

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