Multi-Messenger Astrophysics


Instruments and Observations
Neutrino
	Basics
		Observatories:	IceCube, ANTARES, KM3NET
		Interactions (CC, NC)

	Properties of this neutrino
		cc -> muon
		129TeV
	
		Followup of Antares showed nothing


High Energy gamma ray
	Instruments
		Satellites(Fermi-LAT / AGILE)

	Observations
		Pinning to TXS 0506+056
			0.1 grad from best-fitting direction
			is blazar BL Lac
			redshift measured from a study triggered by this neutrion observation

		Elevated gamma emission
		automated processing showed flare (usual)
		

VHE gamma
	Instruments
		IACT (HESS / MAGIC / VERITAS )
		HAWC

	Observations
		Upper limits  on gamma-flux
		flux(E>175GeV) < 1e-11 1/cm/s

		MAGIC 2: signal 374 +- 62 photons
		probability constant flux: <0.0135
		
		Further observations prevented by full moon

		HAWC: no signal

		upper limits on redshift by attenuation of extragalactic background light
		z_upp = 0.6 to 1 depending on EBL model

Radio
	Instruments
		VLA / OVRO
	Observations
		gradual increase over 18 months prior

Optical
	Instruments

	redshift measure by Gran Telescopio Canarias

X-ray
	Instruments
		Satellites

	Observations
	Spectrum fitting gives
		

Total Spectrum
	
Interpretations

	IceCube archival data -> neutrino in 2014
	Coincidence probability
		associate \nu with \gamma
		chance disfavored at 3\sigma
	Science to be extracted
