Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-05T08:12:13.028Z Has data issue: false hasContentIssue false

First results from HAWC: monitoring the TeV gamma-ray sky

Published online by Cambridge University Press:  24 March 2015

Robert J. Lauer
Affiliation:
Dept. of Physics & Astronomy, University of New Mexico, 1919 Lomas Blvd. NE, MSC07 4220, Albuquerque, NM 87131, USA email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The High Altitude Water Cherenkov (HAWC) Observatory is a wide-field gamma-ray detector sensitive to primary energies between 100 GeV and 100 TeV. The array is being built at an altitude of 4100 m a.s.l. on the Sierra Negra volcano near Puebla, Mexico. Data taking has already started while construction continues, with the completion projected for early 2015. The design is optimized to detect extended air showers induced by gamma rays that pass through the array and to reconstruct the directions and energies of the primary photons. With a duty cycle close to 100% and a daily coverage of ~8 sr of the sky, HAWC will perform a survey of TeV emissions from many different sources. The northern active galactic nuclei will be monitored for up to 6 hours each day, providing unprecedented light curve coverage at energies comparable to those of imaging air Cherenkov telescopes. HAWC has been in scientific operation with more than 100 detector modules since August 2013. Here we present a preliminary look at the first results and discuss the efforts to integrate HAWC in multi-wavelength studies of extragalactic jets.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2015 

References

Abeysekara, A. U.et al., 2015, Astropart. Phys., 62, 125Google Scholar
Fermi-LAT Collaboration (Ackermann, M.et al.) 2013, ApJS, 209, 11CrossRefGoogle Scholar
HAWC Collaboration (Abeysekara, A. U.et al.) 2012, Astropart. Phys. 35, 641Google Scholar
HAWC Collaboration (Abeysekara, A. U.et al.) 2013, Astropart. Phys. 50, 26CrossRefGoogle Scholar
HAWC Collaboration (Abeysekara, A. U.et al.) 2014a, ApJ, 796, 108Google Scholar
HAWC Collaboration (Abeysekara, A. U.et al.) 2014b, Phys. Rev. D, 90, 122002Google Scholar
HAWC Collaboration (Abeysekara, A. U.et al.) 2014c, ApJ, submitted; arXiv:1410.1536Google Scholar
Milagro Collaboration (Atkins, R.et al.) 2004, ApJ, 608, 680Google Scholar