John Evans

About

John Evans is an Associate Professor in the Ann and H.J. Smead Aerospace Engineering Sciences at the University of Colorado Boulder. His research focuses on computational mechanics with an emphasis on fluid dynamics, fluid-structure interaction, and turbulence modeling and simulation. He specializes in high-order and structure-preserving methods. Evans has a strong academic background with a PhD and MS in Computational and Applied Mathematics from The University of Texas at Austin, and a BS and MS in Mathematics and Applied Mathematics from Rensselaer Polytechnic Institute. He has been recognized for his contributions to the field through numerous awards, including the Educator of the Year by the Rocky Mountain Section of the American Institute of Aeronautics and Astronautics in 2021, the Gallagher Young Investigator Medal from the United States Association for Computational Mechanics in 2021, and the Outstanding Junior Faculty Award from the Smead Aerospace Engineering Sciences in 2020. Evans has also been distinguished as a Clarivate Analytics Highly Cited Researcher multiple years and has held prestigious fellowships such as the Institute for Computational Engineering and Sciences Postdoctoral Fellowship and the Department of Energy Computational Science Graduate Fellowship. His professional experience includes positions as a Visiting Assistant Professor and Assistant Professor at the University of Colorado Boulder, and a Postdoctoral Fellow at the University of Texas at…

Research topics

• Particle physics
• Astrophysics
• Computer Science
• Physics
• Artificial Intelligence
• Astronomy
• Cardiology
• Radiology
• Pathology
• Optics

Selected publications

• Evidence for neutrino emission from the nearby active galaxy NGC 1068

  Science · 2022 · 446 citations

  A supermassive black hole, obscured by cosmic dust, powers the nearby active galaxy NGC 1068. Neutrinos, which rarely interact with matter, could provide information on the galaxy's active core. We searched for neutrino emission from astrophysical objects using data recorded with the IceCube neutrino detector between 2011 and 2020. The positions of 110 known gamma-ray sources were individually searched for neutrino detections above atmospheric and cosmic backgrounds. We found that NGC 1068 has a…

  DOI

• Graph Neural Networks for low-energy event classification & reconstruction in IceCube

  Journal of Instrumentation · 2022 · 38 citations

  Abstract IceCube, a cubic-kilometer array of optical sensors built to detect atmospheric and astrophysical neutrinos between 1 GeV and 1 PeV, is deployed 1.45 km to 2.45 km below the surface of the ice sheet at the South Pole. The classification and reconstruction of events from the in-ice detectors play a central role in the analysis of data from IceCube. Reconstructing and classifying events is a challenge due to the irregular detector geometry, inhomogeneous scattering and absorption of light…

  DOI

• IceCube Search for Neutrino Emission from X-Ray Bright Seyfert Galaxies

  The Astrophysical Journal · 2025-07-18 · 22 citations

  articleOpen access

  Abstract The recent IceCube detection of TeV neutrino emission from the nearby active galaxy NGC 1068 suggests that active galactic nuclei (AGNs) could make a sizable contribution to the diffuse flux of astrophysical neutrinos. The absence of TeV γ -rays from NGC 1068 indicates neutrino production in the vicinity of the supermassive black hole, where the high radiation density leads to γ -ray attenuation. Therefore, any potential neutrino emission from similar sources is not expected to correlat…

  PublisherDOI

• Erratum: “Limits on Neutrino Emission from GRB 221009A from MeV to PeV Using the IceCube Neutrino Observatory” (2023, ApJL, 946, L26)

  The Astrophysical Journal Letters · 2024-07-30 · 3 citations

  erratumOpen access

  Erratum: “Limits on Neutrino Emission from GRB 221009A from MeV to PeV Using the IceCube Neutrino Observatory” (2023, ApJL, 946, L26), R. Abbasi, M. Ackermann, J. Adams, S. K. Agarwalla, N. Aggarwal, J. A. Aguilar, M. Ahlers, J. M. Alameddine, N. M. Amin, K. Andeen, G. Anton, C. Argüelles, Y. Ashida, S. Athanasiadou, S. N. Axani, X. Bai, A. Balagopal V., M. Baricevic, S. W. Barwick, V. Basu, R. Bay, J. J. Beatty, K.-H. Becker, J. Becker Tjus, J. Beise, C. Bellenghi, S. BenZvi, D. Berley, E. Bern…

  PublisherOA PDFDOI

• Search for High-Energy Neutrinos from TDE-like Flares with IceCube

  2023-07-25 · 3 citations

  articleOpen access

  The collected data of IceCube, a cubic kilometre neutrino detector array in the Antarctic ice, reveal a diffuse flux of astrophysical neutrinos. The extragalactic sources of the majority of these neutrinos however have yet to be discovered. Tidal Disruption Events (TDEs), disruption outbursts from black holes that accrete at an enhanced rate, are candidates for being the sources of extragalactic, high-energy neutrinos. Stein et al. (2021) and Reusch et al. (2022) have reported the coincidence of…

  PublisherOA PDFDOI

Frequent coauthors

• Kwok Lung Fan

  199 shared

• C. H. Wiebusch

  144 shared

• S. R. Klein

  142 shared

• Patrick Reichherzer

  139 shared

• S. Sarkar

  139 shared

• L. Halve

  139 shared

• Philipp Fürst

  Clark Atlanta University

  138 shared

• Erik Ganster

  137 shared

Labs

• Computational Mechanics and Geometry LaboratoryPI

Education

• Ph.D., Computational and Applied Mathematics

  The University of Texas at Austin

  2011

• M.S., Computational and Applied Mathematics

  The University of Texas at Austin

  2008

• M.S., Applied Mathematics

  Rensselaer Polytechnic Institute

  2006

• B.S., Mathematics

  Rensselaer Polytechnic Institute

  2006

Awards & honors

• Educator of the Year (College/University), Rocky Mountain Se…
• Gallagher Young Investigator Medal, United States Associatio…
• Outstanding Junior Faculty Award, Smead Aerospace Engineerin…
• Outstanding Graduate Teaching and Mentoring Award, Smead Aer…
• Simons Visiting Professor, Oberwolfach Research Institute, 2…

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