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Professor John Hewitt

John Hewitt

Faculty Member

 https://orcid.org/0000-0001-5254-2248

Personal profile

Related documents

Education/Academic qualification

Physics & Astronomy, Ph.D., Northwestern University

2009 → …

Disciplines

  • Astrophysics and Astronomy

  • Combined dark matter search towards dwarf spheroidal galaxies with Fermi-LAT, HAWC, H.E.S.S., MAGIC, and VERITAS

    Fermi LAT collaboration, HAWC collaboration, H.E.S.S. collaboration, MAGIC collaboration & VERITAS collaboration, Mar 1 2026, In: Journal of Cosmology and Astroparticle Physics. 2026, 3, 035.

    Research output: Contribution to journal › Article › peer-review

    Open Access

  • A Systematic Search for MeV–GeV Pulsar Wind Nebulae without Gamma-Ray Detected Pulsars

    Fermi LAT collaboration, Oct 2025, In: Astrophysical Journal. 989, 1, p. 110 110.

    Research output: Contribution to journal › Article › peer-review

    Open Access

  • Fermi detection of gamma-ray emission from the hot coronae of radio-quiet active galactic nuclei

    Fermi LAT collaboration, Jun 20 2025, In: Nature Astronomy. 9, 7, p. 1086-1097 12 p.

    Research output: Contribution to journal › Article › peer-review

    Open Access

  • GRB 221009A: The B.O.A.T. Burst that Shines in Gamma Rays

    Fermi LAT collaboration & Fermi GBM collaboration, Jan 2025, In: Astrophysical Journal, Supplement Series. 277, 1, p. 24 24.

    Research output: Contribution to journal › Article › peer-review

    Open Access

  • Puzzling Variation of Gamma Rays from the Sun over the Solar Cycle Revealed with Fermi-LAT

    Acharyya, A., Adelfio, A., Ajello, M., Baldini, L., Bartolini, C., Bastieri, D., Becerra Gonzalez, J., Bellazzini, R., Berenji, B., Bissaldi, E., Blandford, R. D., Bonino, R., Bottacini, E., Buson, S., Cameron, R. A., Caraveo, P. A., Casaburo, F., Casini, F., Cavazzuti, E. & Cerasole, D. & 91 others, Cibrario, N., Ciprini, S., Cozzolongo, G., Cristarella Orestano, P., Cuna, F., Cuoco, A., Cutini, S., D’Ammando, F., Depalo, D., Digel, S. W., Di Lalla, N., Di Venere, L., Domínguez, A., Fiori, A., Fukazawa, Y., Fusco, P., Gargano, F., Gasbarra, C., Gasparrini, D., Germani, S., Giacchino, F., Giglietto, N., Giliberti, M., Giordano, F., Giroletti, M., Guiriec, S., Gupta, R., Hashizume, M., Hays, E., Hewitt, J. W., Holzmann Airasca, A., Horan, D., Hou, X., Kayanoki, T., Kuss, M., Larsson, S., Laviron, A., Li, J., Liguori, A., Liodakis, I., Loizzo, P., Longo, F., Loparco, F., López Pérez, S., Lorusso, L., Lovellette, M. N., Lubrano, P., Maldera, S., Manfreda, A., Martí-Devesa, G., Martinelli, R., Mazziotta, M. N., McEnery, J. E., Mereu, I., Michailidis, M., Michelson, P. F., Mirabal, N., Mizuno, T., Monti-Guarnieri, P., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Omodei, N., Orlando, E., Ormes, J. F., Paneque, D., Panzarini, G., Persic, M., Pesce-Rollins, M., Petrosian, V., Pillera, R., Principe, G., Rainò, S., Rando, R., Rani, B., Razzano, M., Reimer, A., Reimer, O., Sánchez-Conde, M., Saz Parkinson, P. M., Serini, D., Sgrò, C., Siskind, E. J., Spinelli, P., Tak, D., Tibaldo, L., Torres, D. F., Valverde, J., Wadiasingh, Z. & Zhang, W., Oct 2025, In: Astrophysical Journal Letters. 989, 1, p. L16 L16.

    Research output: Contribution to journal › Article › peer-review

    Open Access
View all 109 Research outputs

  • The Fermi LAT fourth source catalog (4FGL)

    Abdollahi, S. (Creator), Acero, F. (Creator), Ackermann, M. (Creator), Ajello, M. (Creator), Atwood, W. B. (Creator), Axelsson, M. (Creator), Baldini, L. (Creator), Ballet, J. (Creator), Barbiellini, G. (Creator), Bastieri, D. (Creator), Becerra, G. J. (Creator), Bellazzini, R. (Creator), Berretta, A. (Creator), Bissaldi, E. (Creator), Blandford, R. D. (Creator), Bloom, E. D. (Creator), Bonino, R. (Creator), Bottacini, E. (Creator), Brandt, T. J. (Creator), Bregeon, J. (Creator), Bruel, P. (Creator), Buehler, R. (Creator), Burnett, T. H. (Creator), Buson, S. (Creator), Cameron, R. A. (Creator), Caputo, R. (Creator), Caraveo, P. A. (Creator), Casandjian, J. M. (Creator), Castro, D. (Creator), Cavazzuti, E. (Creator), Charles, E. (Creator), Chaty, S. (Creator), Chen, S. (Creator), Cheung, C. C. (Creator), Chiaro, G. (Creator), Ciprini, S. (Creator), Cohen-Tanugi, J. (Creator), Cominsky, L. R. (Creator), Coronado-Blazquez, J. (Contributor), Costantin, D. (Creator), Cuoco, A. (Creator), Cutini, S. (Creator), D'Ammando, F. (Creator), Deklotz, M. (Contributor), Torre Luque, P. D. L. (Contributor), De, P. F. (Creator), Desai, A. (Creator), Digel, S. W. (Creator), Lalla, N. D. (Contributor), Mauro, M. D. (Contributor), Venere, L. D. (Contributor), Dominguez, A. (Contributor), Dumora, D. (Creator), Dirirsa, F. F. (Contributor), Fegan, S. J. (Creator), Ferrara, E. C. (Creator), Franckowiak, A. (Creator), Fukazawa, Y. (Creator), Funk, S. (Creator), Fusco, P. (Creator), Gargano, F. (Creator), Gasparrini, D. (Creator), Giglietto, N. (Creator), Giommi, P. (Creator), Giordano, F. (Creator), Giroletti, M. (Creator), Glanzman, T. (Creator), Green, D. (Creator), Grenier, I. A. (Creator), Griffin, S. (Creator), Grondin, M.-H. (Creator), Grove, J. E. (Creator), Guiriec, S. (Creator), Harding, A. K. (Creator), Hayashi, K. (Creator), Hays, E. (Creator), Hewitt, J. W. (Creator), Horan, D. (Creator), Johannesson, G. (Contributor), Johnson, T. J. (Creator), Kamae, T. (Creator), Kerr, M. (Creator), Kocevski, D. (Creator), Kuss, M. (Creator), Landriu, D. (Creator), Larsson, S. (Creator), Latronico, L. (Creator), Lemoine-Goumard, M. (Creator), Li, J. (Creator), Liodakis, I. (Creator), Longo, F. (Creator), Loparco, F. (Creator), Lott, B. (Creator), Lovellette, M. N. (Creator), Lubrano, P. (Creator), Madejski, G. M. (Creator), Maldera, S. (Creator), Malyshev, D. (Creator), Manfreda, A. (Creator), Marchesini, E. J. (Creator), Marcotulli, L. (Creator), Marti-Devesa, G. (Contributor), Martin, P. (Creator), Massaro, F. (Creator), Mazziotta, M. N. (Creator), McEnery, J. E. (Creator), Mereu, I. (Creator), Meyer, M. (Creator), Michelson, P. F. (Creator), Mirabal, N. (Creator), Mizuno, T. (Creator), Monzani, M. E. (Creator), Morselli, A. (Creator), Moskalenko, I. V. (Creator), Negro, M. (Creator), Nuss, E. (Creator), Ojha, R. (Creator), Omodei, N. (Creator), Orienti, M. (Creator), Orlando, E. (Creator), Ormes, J. F. (Creator), Palatiello, M. (Creator), Paliya, V. S. (Creator), Paneque, D. (Creator), Pei, Z. (Creator), Perkins, J. S. (Creator), Persic, M. (Creator), Pesce-Rollins, M. (Creator), Petrosian, V. (Creator), Petrov, L. (Creator), Piron, F. (Creator), Poon, H. (Creator), Porter, T. A. (Creator), Principe, G. (Creator), Rando, R. (Creator), Razzano, M. (Creator), Razzaque, S. (Creator), Reimer, A. (Creator), Reimer, O. (Creator), Remy, Q. (Creator), Reposeur, T. (Creator), Romani, R. W. (Creator), Parkinson, P. M. S. (Contributor), Schinzel, F. K. (Creator), Serini, D. (Creator), Siskind, E. J. (Creator), Smith, D. A. (Creator), Spandre, G. (Creator), Spinelli, P. (Creator), Strong, A. W. (Creator), Suson, D. J. (Creator), Tajima, H. (Creator), Takahashi, M. N. (Creator), Tak, D. (Creator), Thayer, J. B. (Creator), Thompson, D. J. (Creator), Tibaldo, L. (Creator), Torres, D. F. (Creator), Torresi, E. (Creator), Valverde, J. (Creator), Klaveren, B. V. (Contributor), Zyl, P. V. (Contributor), Wood, K. (Creator), Yassine, M. (Creator), Zaharijas, G. (Creator), Kovac'evic', M. (Creator), Pena-Herazo, H. (Creator), Raino, S. (Creator) & Sgro, C. (Creator), 2020

    DOI: 10.26093/cds/vizier.22470033, https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/247/33

    Dataset

  • 4FGL sources with sp. breaks between 50MeV-1GeV

    Abdollahi, S. (Creator), Acero, F. (Creator), Ackermann, M. (Creator), Baldini, L. (Creator), Ballet, J. (Creator), Barbiellini, G. (Creator), Bastieri, D. (Creator), Bellazzini, R. (Creator), Berenji, B. (Creator), Berretta, A. (Creator), Bissaldi, E. (Creator), Blandford, R. D. (Creator), Bonino, R. (Creator), Bruel, P. (Creator), Buson, S. (Creator), Cameron, R. A. (Creator), Caputo, R. (Creator), Caraveo, P. A. (Creator), Castro, D. (Creator), Chiaro, G. (Creator), Cibrario, N. (Creator), Ciprini, S. (Creator), Coronado-Blazquez, J. (Contributor), Crnogorcevic, M. (Creator), Cutini, S. (Creator), D'Ammando, F. (Creator), De, G. S. (Creator), Di, L. N. (Creator), Dirirsa, F. (Creator), Di, V. L. (Creator), Dominguez, A. (Contributor), Fegan, S. J. (Creator), Fiori, A. (Creator), Fleischhack, H. (Creator), Franckowiak, A. (Creator), Fukazawa, Y. (Creator), Fusco, P. (Creator), Gammaldi, V. (Creator), Gargano, F. (Creator), Gasparrini, D. (Creator), Giacchino, F. (Creator), Giglietto, N. (Creator), Giordano, F. (Creator), Giroletti, M. (Creator), Glanzman, T. (Creator), Green, D. (Creator), Grenier, I. A. (Creator), Grondin, M.-H. (Creator), Guiriec, S. (Creator), Gustafsson, M. (Creator), Harding, A. K. (Creator), Hays, E. (Creator), Hewitt, J. W. (Creator), Horan, D. (Creator), Hou, X. (Creator), Johannesson, G. (Contributor), Kayanoki, T. (Creator), Kerr, M. (Creator), Kuss, M. (Creator), Larsson, S. (Creator), Latronico, L. (Creator), Lemoine-Goumard, M. (Creator), Li, J. (Creator), Longo, F. (Creator), Loparco, F. (Creator), Lubrano, P. (Creator), Maldera, S. (Creator), Malyshev, D. (Creator), Manfreda, A. (Creator), Marti-Devesa, G. (Contributor), Mazziotta, M. N. (Creator), Mereu, I. (Creator), Michelson, P. F. (Creator), Mirabal, N. (Creator), Mitthumsiri, W. (Creator), Mizuno, T. (Creator), Monzani, M. E. (Creator), Morselli, A. (Creator), Moskalenko, I. V. (Creator), Nuss, E. (Creator), Omodei, N. (Creator), Orienti, M. (Creator), Orlando, E. (Creator), Ormes, J. F. (Creator), Paneque, D. (Creator), Pei, Z. (Creator), Persic, M. (Creator), Pesce-Rollins, M. (Creator), Pillera, R. (Creator), Poon, H. (Creator), Porter, T. A. (Creator), Principe, G. (Creator), Raino, S. (Contributor), Rando, R. (Creator), Rani, B. (Creator), Razzano, M. (Creator), Razzaque, S. (Creator), Reimer, A. (Creator), Reimer, O. (Creator), Reposeur, T. (Creator), Sanchez-Conde, M. (Contributor), Saz, P. P. M. (Creator), Scotton, L. (Creator), Serini, D. (Creator), Sgro, C. (Contributor), Siskind, E. J. (Creator), Spandre, G. (Creator), Spinelli, P. (Creator), Sueoka, K. (Creator), Suson, D. J. (Creator), Tajima, H. (Creator), Tak, D. (Creator), Thayer, J. B. (Creator), Torres, D. F. (Creator), Troja, E. (Creator), Valverde, J. (Creator), Wadiasingh, Z. (Creator), Wood, K. (Creator) & Zaharijas, G. (Creator), 2025

    DOI: 10.26093/cds/vizier.19330204, https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/933/204

    Dataset

  • The first Fermi LAT SNR catalog (1SC)

    Acero, F. (Creator), Ackermann, M. (Creator), Ajello, M. (Creator), Baldini, L. (Creator), Ballet, J. (Creator), Barbiellini, G. (Creator), Bastieri, D. (Creator), Bellazzini, R. (Creator), Bissaldi, E. (Creator), Blandford, R. D. (Creator), Bloom, E. D. (Creator), Bonino, R. (Creator), Bottacini, E. (Creator), Brandt, T. J. (Creator), Bregeon, J. (Creator), Bruel, P. (Creator), Buehler, R. (Creator), Buson, S. (Creator), Caliandro, G. A. (Creator), Cameron, R. A. (Creator), Caputo, R. (Creator), Caragiulo, M. (Creator), Caraveo, P. A. (Creator), Casandjian, J. M. (Creator), Cavazzuti, E. (Creator), Cecchi, C. (Creator), Chekhtman, A. (Creator), Chiang, J. (Creator), Chiaro, G. (Creator), Ciprini, S. (Creator), Claus, R. (Creator), Cohen, J. M. (Creator), Cohen-Tanugi, J. (Creator), Cominsky, L. R. (Creator), Condon, B. (Creator), Conrad, J. (Creator), Cutini, S. (Creator), D'Ammando, F. (Creator), Angelis, A. D. (Contributor), Palma, F. D. (Contributor), Desiante, R. (Creator), Digel, S. W. (Creator), Venere, L. D. (Contributor), Drell, P. S. (Creator), Drlica-Wagner, A. (Creator), Favuzzi, C. (Creator), Ferrara, E. C. (Creator), Franckowiak, A. (Creator), Fukazawa, Y. (Creator), Funk, S. (Creator), Fusco, P. (Creator), Gargano, F. (Creator), Gasparrini, D. (Creator), Giglietto, N. (Creator), Giommi, P. (Creator), Giordano, F. (Creator), Giroletti, M. (Creator), Glanzman, T. (Creator), Godfrey, G. (Creator), Gomez-Vargas, G. A. (Creator), Grenier, I. A. (Creator), Grondin, M.-H. (Creator), Guillemot, L. (Creator), Guiriec, S. (Creator), Gustafsson, M. (Creator), Hadasch, D. (Creator), Harding, A. K. (Creator), Hayashida, M. (Creator), Hays, E. (Creator), Hewitt, J. W. (Creator), Hill, A. B. (Creator), Horan, D. (Creator), Hou, X. (Creator), Iafrate, G. (Creator), Jogler, T. (Creator), Johannesson, G. (Contributor), Johnson, A. S. (Creator), Kamae, T. (Creator), Katagiri, H. (Creator), Kataoka, J. (Creator), Katsuta, J. (Creator), Kerr, M. (Creator), Knodlseder, J. (Contributor), Kocevski, D. (Creator), Kuss, M. (Creator), Laffon, H. (Creator), Lande, J. (Creator), Larsson, S. (Creator), Latronico, L. (Creator), Lemoine-Goumard, M. (Creator), Li, J. (Creator), Li, L. (Creator), Longo, F. (Creator), Loparco, F. (Creator), Lovellette, M. N. (Creator), Lubrano, P. (Creator), Magill, J. (Creator), Maldera, S. (Creator), Marelli, M. (Creator), Mayer, M. (Creator), Mazziotta, M. N. (Creator), Michelson, P. F. (Creator), Mitthumsiri, W. (Creator), Mizuno, T. (Creator), Moiseev, A. A. (Creator), Monzani, M. E. (Creator), Moretti, E. (Creator), Morselli, A. (Creator), Moskalenko, I. V. (Creator), Murgia, S. (Creator), Nemmen, R. (Creator), Nuss, E. (Creator), Ohsugi, T. (Creator), Omodei, N. (Creator), Orienti, M. (Creator), Orlando, E. (Creator), Ormes, J. F. (Creator), Paneque, D. (Creator), Perkins, J. S. (Creator), Pesce-Rollins, M. (Creator), Petrosian, V. (Creator), Piron, F. (Creator), Pivato, G. (Creator), Porter, T. A. (Creator), Raino, S. (Contributor), Rando, R. (Creator), Razzano, M. (Creator), Razzaque, S. (Creator), Reimer, A. (Creator), Reimer, O. (Creator), Renaud, M. (Creator), Reposeur, T. (Creator), Rousseau, R. (Creator), Parkinson, P. M. S. (Contributor), Schmid, J. (Creator), Schulz, A. (Creator), Sgro, C. (Contributor), Siskind, E. J. (Creator), Spada, F. (Creator), Spandre, G. (Creator), Spinelli, P. (Creator), Strong, A. W. (Creator), Suson, D. J. (Creator), Tajima, H. (Creator), Takahashi, H. (Creator), Tanaka, T. (Creator), Thayer, J. B. (Creator), Thompson, D. J. (Creator), Tibaldo, L. (Creator), Tibolla, O. (Creator), Torres, D. F. (Creator), Tosti, G. (Creator), Troja, E. (Creator), Uchiyama, Y. (Creator), Vianello, G. (Creator), Wells, B. (Creator), Wood, K. S. (Creator), Wood, M. (Creator), Yassine, M. (Creator), Den, H. P. R. (Creator) & Zimmer, S. (Creator), 2016

    DOI: 10.26093/cds/vizier.22240008, https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/224/8

    Dataset

  • Air shower reconstruction using a Graph Neural Network for the IceAct telescopes

    Paul, L. (Contributor), Zink, A. (Contributor), Hewitt, J. W. (Contributor) & Bretz, T. (Contributor), ZENODO, Feb 1 2022

    DOI: 10.5281/zenodo.6354743, https://zenodo.org/records/6354743

    Dataset

  • First Fermi-LAT Inner Galaxy point source catalog

    Ajello, M. (Creator), Albert, A. (Creator), Atwood, W. B. (Creator), Barbiellini, G. (Creator), Bastieri, D. (Creator), Bechtol, K. (Creator), Bellazzini, R. (Creator), Bissaldi, E. (Creator), Blandford, R. D. (Creator), Bloom, E. D. (Creator), Bonino, R. (Creator), Bottacini, E. (Creator), Brandt, T. J. (Creator), Bregeon, J. (Creator), Bruel, P. (Creator), Buehler, R. (Creator), Buson, S. (Creator), Caliandro, G. A. (Creator), Cameron, R. A. (Creator), Caputo, R. (Creator), Caragiulo, M. (Creator), Caraveo, P. A. (Creator), Cecchi, C. (Creator), Chekhtman, A. (Creator), Chiang, J. (Creator), Chiaro, G. (Creator), Ciprini, S. (Creator), Cohen-Tanugi, J. (Creator), Cominsky, L. R. (Creator), Conrad, J. (Creator), Cutini, S. (Creator), D'Ammando, F. (Creator), De, A. A. (Creator), De, P. F. (Creator), Desiante, R. (Creator), Di, V. L. (Creator), Drell, P. S. (Creator), Favuzzi, C. (Creator), Ferrara, E. C. (Creator), Fusco, P. (Creator), Gargano, F. (Creator), Gasparrini, D. (Creator), Giglietto, N. (Creator), Giommi, P. (Creator), Giordano, F. (Creator), Giroletti, M. (Creator), Glanzman, T. (Creator), Godfrey, G. (Creator), Gomez-Vargas, G. A. (Creator), Grenier, I. A. (Creator), Guiriec, S. (Creator), Gustafsson, M. (Creator), Harding, A. K. (Creator), Hewitt, J. W. (Creator), Hill, A. B. (Creator), Horan, D. (Creator), Jogler, T. (Creator), Johannesson, G. (Contributor), Johnson, A. S. (Creator), Kamae, T. (Creator), Karwin, C. (Creator), Knodlseder, J. (Contributor), Kuss, M. (Creator), Larsson, S. (Creator), Latronico, L. (Creator), Li, J. (Creator), Li, L. (Creator), Longo, F. (Creator), Loparco, F. (Creator), Lovellette, M. N. (Creator), Lubrano, P. (Creator), Magill, J. (Creator), Maldera, S. (Creator), Malyshev, D. (Creator), Manfreda, A. (Creator), Mayer, M. (Creator), Mazziotta, M. N. (Creator), Michelson, P. F. (Creator), Mitthumsiri, W. (Creator), Mizuno, T. (Creator), Moiseev, A. A. (Creator), Monzani, M. E. (Creator), Morselli, A. (Creator), Moskalenko, I. V. (Creator), Murgia, S. (Creator), Nuss, E. (Creator), Ohno, M. (Creator), Ohsugi, T. (Creator), Omodei, N. (Creator), Orlando, E. (Creator), Ormes, J. F. (Creator), Paneque, D. (Creator), Pesce-Rollins, M. (Creator), Piron, F. (Creator), Pivato, G. (Creator), Porter, T. A. (Creator), Raino, S. (Contributor), Rando, R. (Creator), Razzano, M. (Creator), Reimer, A. (Creator), Reimer, O. (Creator), Ritz, S. (Creator), Sanchez-Conde, M. (Contributor), Sgro, C. (Contributor), Siskind, E. J. (Creator), Smith, D. A. (Creator), Spada, F. (Creator), Spandre, G. (Creator), Spinelli, P. (Creator), Suson, D. J. (Creator), Tajima, H. (Creator), Takahashi, H. (Creator), Thayer, J. B. (Creator), Torres, D. F. (Creator), Tosti, G. (Creator), Troja, E. (Creator), Uchiyama, Y. (Creator), Vianello, G. (Creator), Winer, B. L. (Creator), Wood, K. S. (Creator), Zaharijas, G. (Creator), Zimmer, S. (Creator) & Parkinson, P. M. S. (Contributor), 2018

    DOI: 10.26093/cds/vizier.18190044, https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/819/44

    Dataset

View all 9 datasets
  • 5 Membership of network