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The HAWC Real-time Flare Monitor for Rapid Detection of Transient Events

MPG-Autoren
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Lopez Coto,  Ruben
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Zitation

Abeysekara, A. U., Alfaro, R., Alvarez, C., Alvarez, J. D., Arceo, R., Arteaga-Velazquez, J. C., et al. (2017). The HAWC Real-time Flare Monitor for Rapid Detection of Transient Events. Astrophysical Journal, 843(2): 116. doi:10.3847/1538-4357/aa789f.


Zitierlink: https://hdl.handle.net/21.11116/0000-0001-092B-6
Zusammenfassung
We present the development of a real-time flare monitor for the High Altitude Water Cherenkov (HAWC) observatory. The flare monitor has been fully operational since 2017 January and is designed to detect very high energy (VHE; E greater than or similar to 100 GeV) transient events from blazars on timescales lasting from 2 minutes to 10 hr in order to facilitate multiwavelength and multimessenger studies. These flares provide information for investigations into the mechanisms that power the blazars' relativistic jets and accelerate particles within them, and they may also serve as probes of the populations of particles and fields in intergalactic space. To date, the detection of blazar flares in the VHE range has relied primarily on pointed observations by imaging atmospheric Cherenkov telescopes. The recently completed HAWC observatory offers the opportunity to study VHE flares in survey mode, scanning two-thirds of the entire sky every day with a field of view of similar to 1.8 steradians. In this work, we report on the sensitivity of the HAWC real-time flare monitor and demonstrate its capabilities via the detection of three high-confidence VHE events in the blazars Markarian 421 and Markarian 501.