Director of the Center for Multimessenger Astrophysics
Education
M.S. in Nuclear Engineering, Instituto Balseiro, Bariloche, Argentina
Ph.D in Particle Physics, Instituto Balseiro, Bariloche, Argentina
Specialties:
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- Experimental
- Ultra-high energy cosmic rays
- Very-high energy gamma rays
- High energy neutrinos
- Multimessenger astrophysics
Selected recent publications:
- HAWC observations of the acceleration of very-high-energy cosmic rays in the Cygnus Cocoon, Nature Astron (2021)
- Evidence of 200 TeV photons from HAWC J1825-134, ApJL 907 (2021), L30
- A measurement of the cosmic-ray energy spectrum above 2.5x1018 eV using the Pierre Auger Observatory, Physical Review D 102 (2020) 062005
Selected as Editor's suggestion. - The Astrophysical Multimessenger Observatory Network (AMON): Performance and science program, Astropart.Phys. 114 (2020) 68-76
- Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC, Physical Review Letters 124 (2020) 021102
Selected for a Synopsis in Physics. - The Giant Radio Array for Neutrino Detection (GRAND): Science and Design, Science China 63 (2020) no.1, 219501
- Astrophysics Uniquely Enabled by Observations of High-Energy Cosmic Neutrinos, Bull.Am.Astron.Soc. 51 (2019) 185
- Very high energy particle acceleration powered by the jets of the microquasar SS 433, Nature 562 (2018) no.7725, 82-85
- Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A, Science 361 (2018) no.6398, eaat1378
- Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth, Science 358 (2017) no.6365, 911-914
- Search for High-energy Neutrinos from Binary Neutron Star Merger GW170817 with ANTARES, IceCube, and the Pierre Auger Observatory, Astrophys.J. 850 (2017) no.2, L35
- Multi-messenger Observations of a Binary Neutron Star Merger, Astrophys.J. 848 (2017) no.2, L12
- Observation of a Large-scale Anisotropy in the Arrival Directions of Cosmic Rays above 8×1018 eV, Science 357 (2017) no.6537, 1266-1270
Renowned papers:
- Multi-messenger Observations of a Binary Neutron Star Merger, Astrophys.J. 848 (2017) no.2, L12
- Measurement of the Energy Spectrum of Cosmic Rays above 10^18 eV Using the Pierre Auger Observatory, Phys.Lett. B685 (2010) 239-246
- Measurement of the Depth of Maximum of Extensive Air Showers above 10^18 eV, Phys.Rev.Lett. 104 (2010) 091101
- Observation of the suppression of the flux of cosmic rays above 4×10^19 eV, Phys.Rev.Lett. 101 (2008) 061101
- Correlation of the highest energy cosmic rays with nearby extragalactic objects, Science 318 (2007) 938-943
- The Upgraded D0 detector, Nucl.Instrum.Meth. A565 (2006) 463-537
- Properties and performance of the prototype instrument for the Pierre Auger Observatory, Nucl.Instrum.Meth. A523 (2004) 50-95
- Observation and properties of the ?(3872) decaying to ?/??+?− in ?-bar(?) collisions at √s=1.96 TeV, Phys.Rev.Lett. 93 (2004) 162002
Honors and Awards
- Elected Fellow of the American Physical Society in 2016
- 2016 C.I. Noll Award for Excellence in Teaching sponsored by the Eberly College of Science Alumni Society at Penn State
- Outstanding Mentor Award presented by the Students as Leaders in Science at Colorado State University in 2009
- Student Choice Award 2007 sponsored by the Associated Students of the University of Utah