Please use this identifier to cite or link to this item: http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1911
On the sensitivity of the HAWC observatory to gamma-ray bursts
Alberto Carramiñana Alonso
MAXIMINO LUIS ARROYO CARRASCO
Eduardo Mendoza Torres
DANIEL ROSA GONZALEZ
SERGIY SILICH
GUILLERMO TENORIO TAGLE
WILLIAM FRANK WALL
Acceso Abierto
Atribución-NoComercial-SinDerivadas
We present the sensitivity of HAWC to Gamma Ray Bursts (GRBs). HAWC is a very high-energy gammaray observatory currently under construction in Mexico at an altitude of 4100m. It will observe atmospheric air showers via the water Cherenkov method. HAWC will consist of 300 large water tanks instrumented with 4 photomultipliers each. HAWC has two data acquisition (DAQ) systems. The main DAQ system reads out coincident signals in the tanks and reconstructs the direction and energy of individual atmospheric showers. The scaler DAQ counts the hits in each photomultiplier tube (PMT) in the detector and searches for a statistical excess over the noise of all PMTs. We show that HAWC has a realistic opportunity to observe the high-energy power law components of GRBs that extend at least up to 30 GeV, as it has been observed by Fermi LAT. The two DAQ systems have an energy threshold that is low enough to observe events similar to GRB 090510 and GRB 090902b with the characteristics observed by Fermi LAT. HAWC will provide information about the high-energy spectra of GRBs which in turn could help to understanding about e-pair attenuation in GRB jets, extragalactic background light absorption, as well as establishing the highest energy to which GRBs accelerate particles.
Astroparticle Physics
2012-05
Artículo
Inglés
Estudiantes
Investigadores
Público en general
Abeysekara, A. U., et al., (2012), On the sensitivity of the HAWC observatory to gamma-ray bursts, Astroparticle Physics, Vol. 35(10): 641-650
ASTRONOMÍA Y ASTROFÍSICA
Versión aceptada
acceptedVersion - Versión aceptada
Appears in Collections:Artículos de Astrofísica

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