HAWC

Publications

Journal Articles
Astronomer's Telegrams
Ph.D. Theses
Conference Proceedings
Technical Documents

---

Journal Articles

Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC
HAWC Collaboration: A.U. Abeysekara et al., accepted for publication in Physical Review Letters, Jan. 2020.

Measurement of the Crab Nebula Spectrum past 100 TeV with HAWC
HAWC Collaboration: A.U. Abeysekara et al., ApJ881(2019), 134.

All-Sky Measurement of the Anisotropy of Cosmic Rays at 10 TeV and Mapping of the Local Interstellar Magnetic Field
HAWC Collaboration: A.U. Abeysekara et al., and IceCube Collaboration, M.G. Aartsen et al., accepted for publication in ApJ, Dec. 2018.

Searching for Dark Matter Sub-structure with HAWC
HAWC Collaboration: A.U. Abeysekara et al., submitted to JCAP, Nov. 2018.

Very high energy particle acceleration powered by the jets of the microquasar SS 433
HAWC Collaboration: A.U. Abeysekara et al., Nature 562 (2018), 82-85.

VERITAS and Fermi-LAT Observations of TeV Gamma-Ray Sources Discovered by HAWC in the 2HWC Catalog
VERITAS Collaboration: A.U. Abeysekara et al.; Fermi-LAT Collaboration: S. Abdollahi et al.; HAWC Collaboration: R. Alfaro et al., ApJ 866 (2018), 24.

Constraints on Spin-Dependent Dark Matter Scattering with Long-Lived Mediators from TeV Observations of the Sun with HAWC
HAWC Collaboration: A. Albert et al., submitted to PRD.

First HAWC Observations of the Sun Constrain Steady TeV Gamma-Ray Emission
HAWC Collaboration: A. Albert et al., submitted to PRD.

Multi-messenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A
The IceCube, Fermi-LAT, MAGIC, AGILE, ASAS-SN, HAWC Collaborations, etc., Science 361 (2018), 146-155.

Observation of Anisotropy of TeV Cosmic Rays with Two Years of HAWC
HAWC Collaboration: A.U. Abeysekara et al., ApJ 865 (2018), 57-71.

Search for Dark Matter Gamma-ray Emission from the Andromeda Galaxy with the High-Altitude Water Cherenkov Observatory
HAWC Collaboration: A.U. Albert et al., JCAP 1806 (2018), 043.

Constraining the p/p Ratio in TeV Cosmic Rays with Observations of the Moon Shadow by HAWC
HAWC Collaboration: A.U. Abeysekara et al., Phys. Rev. D 97, 102005 (2018).

A Search for Dark Matter in the Galactic Halo with HAWC
HAWC Collaboration: A.U. Abeysekara et al., JCAP 02 (2018), 049.

Data Acquisition Architecture and Online Processing System for the HAWC gamma-ray observatory
HAWC Collaboration: A.U. Abeysekara et al., NIM A888 (2018), 138-146.

Dark Matter Limits from Dwarf Spheroidal Galaxies with the HAWC Gamma-Ray Observatory
HAWC Collaboration: A. Albert et al., ApJ 853 (2018), 154.

Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth
HAWC Collaboration: A.U. Abeysekara et al., Science 6365 (2017), 911-914.

Multi-messenger Observations of a Binary Neutron Star Merger
LIGO Collaboration, Virgo Collaboration, HAWC Collaboration, etc., ApJ 848 (2017), L12.

All-particle cosmic ray energy spectrum measured by the HAWC experiment from 10 to 500 TeV
HAWC Collaboration: R. Alfaro et al., Phys. Rev. D 96 (2017), 122001.

The HAWC real-time flare monitor for rapid detection of transient events
HAWC Collaboration: A.U. Abeysekara et al., ApJ 843 (2017), 116.

Search for very-high-energy emission from Gamma-ray Bursts using the first 18 months of data from the HAWC Gamma-ray Observatory
HAWC Collaboration: R. Alfaro et al., ApJ 843 (2017), 88.

The 2HWC HAWC Observatory Gamma-Ray Catalog
HAWC Collaboration: A.U. Abeysekara et al., ApJ 843 (2017), 40.

Observation of the Crab Nebula with the HAWC Gamma-Ray Observatory
HAWC Collaboration: A.U. Abeysekara et al., ApJ 843 (2017), 39.

Search for Very High Energy Gamma Rays from the Northern Fermi Bubble Region with HAWC
HAWC Collaboration: A.U. Abeysekara et al., ApJ 842 (2017), 85.

Daily monitoring of TeV gamma-ray emission from Mrk 421, Mrk 501, and the Crab Nebula with HAWC
HAWC Collaboration: A.U. Abeysekara et al., ApJ 841 (2017), 100.

Multiwavelength follow-up of a rare IceCube neutrino multiplet
HAWC, IceCube, Fermi-LAT Collaboration: M.G. Aartsen et al., A&A 607 (2017), A115.

Primordial Black Holes: Observational Characteristics of the Final Evaporation
T.N. Ukwatta, D.R. Stump, J.T. Linnemann, J.H. MacGibbon, S.S. Marinelli, T. Yapici, and K. Tollefson, Astropart. Phys. 80 (2016), 90-114.

Search for TeV Emission from Point-like Sources in the Galactic Plane with a Partial Configuration of the HAWC Observatory
HAWC Collaboration: A.U. Abeysekara et al., Astrophys. J. 817 (2016), 3.

Experimental Constraints on γ-ray Pulsar Gap Models and the Pulsar GeV to Pulsar Wind Nebula TeV Connection
A.U. Abeysekara and J.T. Linnemann, Astrophys. J 804 (2015), 25.

GPS Timing and Control System of the HAWC Detector
A.U. Abeysekara, T. Ukwatta, D. Edmunds, J. Linnemann, A. Imran, G. Kunde, and I. Wisher.

Search for Gamma Rays from the Unusually Bright GRB 130427A with the HAWC Gamma-Ray Observatory
HAWC Collaboration: A.U. Abeysekara et al., Astrophys. J. 800 (2015), 78.

Milagro Limits and HAWC Sensitivity for the Rate-Density of Evaporating Primordial Black Holes
Milagro Collaboration (A.A. Abdo et al.) and HAWC Collaboration (A.U. Abeysekara et al.) Astropart. Phys. 64 (2015), 4-12.

VAMOS: A Pathfinder for the HAWC Gamma-Ray Observatory
HAWC Collaboration: A.U. Abeysekara et al., Astropart. Phys. 62 (2015), 125-133.

Observation of Small-Scale Anisotropy in the Arrival Direction Distribution of TeV Cosmic Rays with HAWC
HAWC Collaboration: A.U. Abeysekara et al., Astrophys. J. 796 (2014), 108.

The Sensitivity of HAWC to High-Mass Dark Matter Annihilations
HAWC Collaboration: A. U. Abeysekara et al., Phys. Rev. D 90 (2014), 122002.

Prospects for the Detection of GRBs with HAWC
I. Taboada, R.C. Gilmore, NIM A 742 (2014), 276-277.

Sensitivity of the High Altitude Water Cherenkov Detector to Sources of Multi-TeV Gamma Rays
HAWC Collaboration: A. U. Abeysekara et al., Astropart. Phys. 50-52 (2013), 26-32.

On the Sensitivity of the HAWC Observatory to Gamma-Ray Bursts
HAWC Collaboration: A. U. Abeysekara et al., Astropart. Phys. 35 (2012) 641-650.

---

Astronomer's Telegrams

Enhanced Activity of Mrk 421 for an extended period over 30 days measured by HAWC
Jose Andres Garcia-Gonzalez (IF-UNAM) and Israel Martinez (UMD) on behalf of the HAWC Collaboration (ATel #12683 on 23 Apr 2019; 18:47 UT).

HAWC detection of TeV source HAWC J0635+070
Chad Brisbois (Michigan Technological University), Colas Riviere (University of Maryland), Henrike Fleischhack (Michigan Technological University), Andrew Smith (University of Maryland) on behalf of the HAWC collaboration (ATel #12013 on 6 Sep 2018; 14:47 UT).

HAWC detection of a candidate TeV transient event from 2FHL J1037.6+5710
Thomas Weisgarber (UW-Madison) for the HAWC Collaboration (ATel #11806 on 2 Jul 2018, 21:50 UT).

HAWC follow up for gamma-rays emission coincident with the position of AT2018cow
Jose Andres Garcia-Gonzalez (IF-UNAM), Magdalena Gonzalez (IA-UNAM), Israel Martinez (UMD), for the HAWC Collaboration (ATel #11792 on 28 Jun 2018, 20:00 UT).

HAWC observation of Mrk421 reaching peak TeV flux in month-long enhanced activity
J. A. Garcia-Gonzalez (UNAM, Ciudad de Mexico, Mexico), I. Martinez-Castellanos (UMD, College Park, USA) on behalf of the HAWC collaboration (ATel #11194 on 17 Jan 2018, 22:12 UT).

HAWC detection of TeV emission near PSR B0540+23
Colas Riviere (University of Maryland), Henrike Fleischhack (Michigan Technological University), Andres Sandoval (Universidad Nacional Autonoma de Mexico) on behalf of the HAWC Collaboration (ATel #10941 on 9 Nov 2017; 23:11 UT).

HAWC gamma ray data prior to IceCube-170922A
Israel Martinez, Ignacio Taboada, Michelle Hui and Robert Lauer for the HAWC Collaboration (ATel #10802 on 30 Sep 2017; 02:10 UT).

HAWC detection of further increase in TeV gamma-ray flux from Mrk 421
I. Martinez (University of Maryland), J. Wood (University of Wisconsin), R. Lauer (University of New Mexico) (ATel #9946 on 6 Jan 2017; 17:39 UT).

Increased TeV gamma-ray activity from Mrk 421 on January 1-4
J. Wood (University of Wisconsin), I. Martinez (University of Maryland), R. Lauer (University of New Mexico) (ATel #9936 on 4 Jan 2017; 17:20 UT).

Enhanced and increasing activity in gamma rays and X-rays from the HBL Mrk421
A. Biland (ETH Zurich) and D. Dorner (University of Wuerzburg, FAU Erlangen) for the FACT Collaboration, R. Lauer (University of New Mexico) and J. Wood (University of Maryland) for the HAWC Collaobration, B. Kapanadze (Abastumani Astrophysical Observatory, Ilia State University), A. Kreikenbohm (University of Wuerzburg) (ATel #9137 on 10 Jun 2016; 19:00 UT).

HAWC detection of increased TeV flux state for Markarian 501
Andres Sandoval (IF-UNAM), Robert Lauer (UNM), Joshua Wood (UMD) on behalf of the HAWC Collaboration (ATel #8922 on 7 Apr 2016; 23:38 UT).

HAWC TeV gamma-ray follow-up observation of the sky region of IceCube's multi-PeV neutrino-induced event
Ignacio Taboada (GATECH) on behalf of the HAWC Collaboration (ATel #7868 on 3 Aug 2015; 13:25 UT).

---

Ph.D. Theses

Reconstruction and Analysis of Highest Energy Gamma-Rays and its Application to Pulsar Wind Nebulae
Vikas Joshi
Ruperto-Carola University of Heidelberg (2019)

Constraints on Lorentz Invariance Violation with the HAWC Observatory
Sam Marinelli
Michigan State University (2019)

Constraining TeV-scale Astrophysical Foregrounds for Dark Matter Searches with HAWC
Mehr Un Nisa
University of Rochester (2019)

Improving the Low Energy Sensitivity of the HAWC Observatory
Zhixiang Ren
University of New Mexico (2018)

A Survey of the Highest-Energy Astrophysical Sources with the HAWC Observatory
Kelly Malone
Pennsylvania State University (2018)

Cosmic Ray Observations at the TeV Scale with the HAWC Observatory
Zigfried Hampel-Arias
University of Wisconsin-Madison (2017)

Real-time Transient Monitoring with the HAWC Detector: Design and Performance
Ian Wisher
University of Wisconsin-Madison (2016)

An All-Sky Search for Bursts of Very High Energy Gamma Rays with HAWC
Joshua Wood
University of Maryland (2016)

A Spectral Analysis of the Crab Nebula and Other Sources with HAWC
Michael Gussert
Colorado State University (2016)

Dark Matter Annihilation Cross-Section Limits of Dwarf Spheroidal Galaxies with the High Altitude Water Cherenkov (HAWC) Gamma-ray Observatory and on the Design of a Water Cherenkov Detector Prototype
Megan Longo Proper
Colorado State University (2016)

Search for High-Energy Gamma Rays in the Northern Fermi Bubble Region with the HAWC Observatory
Hugo Alberto Ayala Solares
Michigan Technological University (2016)

Search for TeV Gamma-Ray Sources in the Galactic Plane with the HAWC Observatory
Hao Zhou
Michigan Technologial University (2015)

A Likelihood Search for Very High-Energy Gamma-Ray Bursts with the High Altitude Water Cherenkov Observatory
Kathryne Sparks Woodle
Pennsylvania State University (2015)

Observation of TeV-Energy Cosmic-Ray Anisotropy with the HAWC Observatory
Daniel Fiorino
University of Wisconsin-Madison (2015)

A Search for Supersymmetric Q-balls with the High Altitude Water Cherenkov Observatory
Peter Karn
University of California-Irvine (2014)

Understanding Nature's Particle Accelerators using High Energy Gamma-Ray Survey Instruments
Anushka Udara Abeysekara
Michigan State University (2014)

---

Conference Proceedings

• HAWC Contributions to the 35th International Cosmic Ray Conference (ICRC2017)
  12 - 20 July 2017, Busan, South Korea
  • Operation, calibration, and analysis
  • Galactic gamma-ray physics
  • Extragalactic gamma-ray physics
  • Cosmic-ray physics
  • Fundamental physics
  • Detector upgrades
• Proceedings of the 6th International Meeting on High Energy Gamma-Ray Astronomy
  July 11-15, 2016, Heidelberg, Germany
  • Search for a very high-energy gamma-ray signal in the northern Fermi bubble region with HAWC
    H.A. Ayala Solares
  • HAWC detection of very extended nearby PWNe powered by old pulsars and their relation to the positrons at the Earth
    R. López-Coto, F. Salesa, and H. Zhou
  • First study of combined blazar light curves with FACT and HAWC
    D. Dorner, R. Lauer, et al.
  • The HAWC GRB Programme
    D. Lennarz, I. Taboada, and J. Wood
  • Searching for Dark Matter Signatures from the Virgo Cluster with HAWC
    S. Hernández Cadena
  • Triggered searches of delayed or extended VHE GRB emissions with HAWC
    A.D. Becerril, M.M. González, and J.R. Alfaro
  • A New Eye on the VHE Transient Universe with the HAWC Online Flare Monitor
    T. Weisgarber
  • HAWC Upgrade for Multi-TeV Gamma-Ray Detection
    A. Jardin-Blicq and V. Joshi
  • Monitoring the Variable Gamma-Ray Sky with HAWC
    R. Lauer
  • Preliminary HAWC 1st Year Catalog
    C. Rivière
• HAWC Contributions to the 34th International Cosmic Ray Conference (ICRC2015)
  30 July - 6 August 2015, The Hague, The Netherlands
  HAWC overview plus 29 contributions on:
  • Detector operations and analysis
  • Galactic gamma-ray physics
  • Extragalactic gamma-ray physics
  • Cosmic-ray physics
  • Fundamental physics
  • Detector upgrades
• Surveying the TeV Sky with HAWC
  R. Lauer
  Proceedings of CIPANP 2015, May 2015, Vale, CO
• The Gamma-Ray Sky as Seen with HAWC
  P. Hüntemeyer
  Proceedings of SuGAR 2015, Searching for the Sources of Galactic Cosmic Rays, January 2015, Geneva, Switzerland
• Measuring TeV Cosmic Rays at the High Altitude Water Cherenkov Observatory
  S. BenZvi
  Proceedings of SuGAR 2015, Searching for the Sources of Galactic Cosmic Rays, January 2015, Geneva, Switzerland
• First scientific contributions from the High Altitude Water Cherenkov Observatory
  H León Vargas
  Proceedings of Cocoyoc 2015, XXXVIII Symposium on Nuclear Physics, January 2015, Cocoyoc, Mexico
• First Results from HAWC: Monitoring the TeV Gamma-Ray Sky
  R. Lauer
  Proceedings of the IAU: IAUS 313, Extragalactic Jets from Every Angle, September 2014, Puerto Ayora, Ecuador
• First Results from the High-Altitude Water Cherenkov Observatory
  S. BenZvi
  Proceedings of TAUP, September 2013, Asilomar, CA
• The Search for TeV-scale Dark Matter with the HAWC Observatory J. P. Harding
  Proceedings of TAUP, September 2013, Asilomar, CA
• First Light with the HAWC Gamma-ray Observatory
  S. Westerhoff
  Proceedings of the 2013 European Physical Society Conf. on High-Energy Physics (EPS-HEP), July 2013, Stockholm, Sweden
• Gamma-ray Astronomy with the HAWC Observatory
  R. Lauer
  Proceedings of the 4th Meeting on High Energy Phenomena in Relativistic Outflows (HEPRO IV), July 2013, Heidelberg, Germany
• Proceedings of the 33rd International Cosmic Ray Conference
  July 2013, Rio de Janeiro, Brazil
  • Sensitivity to Steady and Transient Sources of Gamma Rays
  • Observations of Cosmic Rays
  • Dark Matter, Cosmology, and Fundamental Physics
  • Design, Calibration, and Operation
• The HAWC Observatory as GRB Detector
  D. Zaborov
  Proceedings of the 4th International Fermi Symposium, November 2012, Monterey, CA
• Gamma-ray Astronomy: From Fermi up to the HAWC High-Energy Gamma-ray Observatory in Sierra Negra
  A. Carramiñana
  Proceedings of 2nd CINVESTAV-UNAM Symposium on High Energy Physics, Particles and Neutrinos in an Astrophysical Context, October 2012, Mexico City, Mexico
• HAWC: The High Altitude Water Cherenkov Detector
  A. Tepe
  Proceedings of TAUP, September 2012, Munich, Germany
• HAWC: A Next-Generation All-Sky Gamma-ray Telescope
  S. Westerhoff
  Proceedings of the 39th COSPAR Scientific Assembly, July 2012, Mysore, India
• HAWC: The High Altitude Water Cherenkov Observatory
  J. Goodman
  Proceedings of the Centenary Symposium 2012: Discovery of Cosmic Rays, June 2012, Denver, CO
• Status and Updates from the High Altitude Water Cherenkov (HAWC) Observatory
  B. Baughman
  Proceedings of SciNeGHE, June 2012, Lecce, Italy
• The HAWC Experiment and its Sensitivity to Gamma-ray Bursts
  D. Zaborov
  Proceedings of GRB 2012, May 2012, Munich, Germany
• The High Altitude Water Cherenkov (HAWC) TeV Gamma Ray Observatory
  E. de la Fuente, T. Oceguera-Becerra, G. García-Torales, J.L. García-Luna
  Proceedings of the Workshop on Cosmic-Ray Induced Phenomena in Star-Forming Environments, April 2012, Sant Cugat, Spain
• Simulation of the Fano Factor at the HAWC-30 Array
  M. A. Castillo, H. Salazar, A. Tepe, and L. Villaseñor
  Proceedings of XIII Mexican Workshop on Particles and Fields, October 2011, Guanajuato, México
• Proceedings of the 32nd International Cosmic Ray Conference: August 2011, Beijing, China
  • The HAWC Observatory
    J. Goodman and J. Braun
  • Calibration of the HAWC Observatory
    P. Hüntemeyer et al.
  • Sensitivity of HAWC to GRBs
    I. Taboada
  • Study of HAWC Senstivity to Active Galactic Nuclei
    A. Imran
  • Low-Energy Triggering with HAWC
    J. Pretz
  • Online Digital FPGA Time-Over-Threshold Trigger System for the HAWC Experiment
    J. Aguilar et al.
  • Gamma/Hadron Separation Study for the HAWC Detector
    V. Grabski et al.
  • A Water Cherenkov Detector Prototype for the HAWC Gamma-Ray Observatory
    M. Mostafá et al.
  • Site Development of the HAWC Gamma-Ray Observatory in Sierra Negra
    I. Torres et al.
• The HAWC Observatory
  T. De Young
  Proceedings of the 3rd Roma International Conf. on Astro-Particle Physics (RICAP 11), May 2011, Rome, Italy
• Study of Capabilities of the HAWC Observatory to Detect GRBs
  M. A. Castillo, H. Salazar, and L. Villaseñor
  Proceedings of XIV Mexican School of Particles and Fields, November 2010, Michoacán, México
• Status of the High Altitude Water Cherenkov (HAWC) Gamma Ray Observatory
  W. Springer
  Proceedings of ICATPP Conf. on Cosmic Rays for Particle and Astroparticle Physics, October 2010, Como, Italy
• The HAWC TeV Gamma-ray Observatory
  G. Sinnis
  Proceedings of SciNeGHE, September 2010, Trieste, Italy
• Recent Results from Milagro and Prospects for HAWC
  J. Pretz and S. Westerhoff
  Proceedings of 35th International Conference of High Energy Physics, August 2010, Paris, France
• Performance of the First Prototype of the HAWC Gamma Ray Observatory
  A. Sandoval et al.
  Proceedings of 2009 Fermi Symposium, November 2009, Washington, DC
• Proceedings of the 31st International Cosmic Ray Conference: July 2009, Łodz, Poland
  • HAWC in the Fermi Era
    J. Goodman
  • Performance of a Prototype Water Cherenkov Detector of the HAWC Observatory
    A. Sandoval et al.
  • A Robot to Characterize the Photocathode Response of the HAWC 8" Photomultipliers
    R. Alfaro et al.
  • Measurement of the Response of Water Cherenkov Detectors to Secondary Cosmic-Ray Particles in the HAWC Engineering Array Using a Fast Custom-Made DAQ System
    L. Villaseñor et al.
  • Light Collection Optimization of HAWC Water Cherenkov Detectors by Means of Simulations
    V. Grabski, A. Smith, and A. Gonzalez
  • The High Altitude Water Cherenkov Observatory, HAWC. Design and Performance
    M.M. González
  • The HAWC Observatory and its Synergies at Volcán Sierra Negra
    H. Salazar
  • Sensitivity and Design Optimization of HAWC
    A.J. Smith
  • HAWC Timing Calibration
    P. Hüntemeyer, J.A.J. Matthews, B. Dingus
• Proceedings of the 4th Heidelberg International Symposium on High-Energy Gamma Ray Astronomy: July 2008, Heidelberg, Germany
  • Physics with HAWC
    B. Dingus
  • Construction of the HAWC Observatory at Volcán Sierra Negra
    A. Sandoval et al.
• Proceedings of the 30th International Cosmic Ray Conference: August 2007, Mérida, México
  • HAWC @ Mexico
    A. Carramiñana et al.
  • Capability of Extended Air Shower Arrays for Gamma-Ray Astronomy
    A.J. Smith
  • Coincident Neutrino and TeV Gamma Ray Observations
    J. Goodman
  • Observing the Universe at TeV Energies with the HAWC Observatory
    M. González
  • Sensitivity of the High Altitude Water Cherenkov Experiment to Observe Gamma Ray Bursts
    M. González
• HAWC (High-Altitude Water Cherenkov) Observatory for Surveying the TeV Sky
  B. Dingus
  Proceedings of 1st GLAST Symposium, February 2007, Stanford, California
• HAWC: A Next Generation All-Sky Gamma-ray Telescope
  A. Smith
  Proceedings of the 2nd Workshop on TeV Particle Astrophysics, August 2006, Madison, Wisconsin

---

Technical Documents

HAWC @ México - Un Observatorio de Rayos Gamma de Gran Altura
HAWC Collaboration (México): A. Carramiñana et al. Proposal submitted to CONACyT (2007).

The HAWC Experiment at the Parque Nacional Pico de Orizaba
A. Carramiñana et al. Whitepaper discussing the practicalities of locating HAWC in Mexico (2007).