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Stephen Fegan

Associate Research Scientist, CNRS

1999 …2025

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

    Fermi LAT Collaboration, 1 Jul 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, 1 Mar 2025, In: Astrophysical Journal, Supplement Series. 277, 1, 24.

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

    Open Access

  • newASTROGAM – The New MeV to GeV Gamma-ray Observatory

    newASTROGAM proposal team, 30 Dec 2025, In: Proceedings of Science. 501, 572.

    Research output: Contribution to journal › Conference article › peer-review

    Open Access

  • Prospects for dark matter observations in dwarf spheroidal galaxies with the Cherenkov Telescope Array Observatory

    Abe, K., Abe, S., Abhir, J., Abhishek, A., Acero, F., Acharyya, A., Adam, R., Aguasca-Cabot, A., Agudo, I., Aguirre-Santaella, A., Alfaro, J., Alfaro, R., Alispach, C., Alves Batista, R., Amans, J. P., Amato, E., Ambrosi, G., Ambrosino, D., Ambrosino, F. & Angel, L. & 474 others, Antonelli, L. A., Aramo, C., Arcaro, C., Asano, K., Ascasibar, Y., Augusto Stuani, L., Backes, M., Balazs, C., Balbo, M., Baquero Larriva, A., Barbosa Martins, V., Barrio, J. A., Barrios-Jiménez, L., Bartolini, C., Batista, P. I., Batković, I., Batzofin, R., Becerra González, J., Beck, G., Becker Tjus, J., Benbow, W., Berge, D., Bernardini, E., Bernete, J., Berti, A., Bertucci, B., Beshley, V., Bhattacharjee, P., Bhattacharyya, S., Bigongiari, C., Biland, A., Bissaldi, E., Blanch, O., Blazek, J., Bonnoli, G., Bonollo, A., Bosnjak, Z., Bottacini, E., Böttcher, M., Bringmann, T., Bronzini, E., Brose, R., Brunelli, G., Buces Sáez, J., Bunse, M., Burmistrov, L., Burton, M., Calisse, P. G., Campoy-Ordaz, A., Cantlay, B. K., Capasso, G., Caproni, A., Capuzzo-Dolcetta, R., Caraveo, P., Caroff, S., Carosi, R., Carquin, E., Carrasco, M. S., Cascone, E., Castignani, G., Castro-Tirado, A. J., Cerasole, D., Cerruti, M., Cerviño Cortínez, A., Chadwick, P. M., Chai, Y., Chaty, S., Chen, A. W., Chen, Y., Chernyakova, M., Chiavassa, A., Chon, G., Chudoba, J., Cicciari, G. M., Cifuentes, A., Coimbra Araujo, C. H., Colapietro, M., Conforti, V., Contreras, J. L., Cornejo, B., Cortina, J., Costa, A., Costantini, H., Cotter, G., Cristofari, P., Cuevas, O., Curtis-Ginsberg, Z., D’Amico, G., D’Ammando, F., David, L., Dazzi, F., De Angelis, A., de Bony de Lavergne, M., De Frondat Laadim, F., de Gouveia Dal Pino, E. M., De Lotto, B., de Naurois, M., De Palma, G., de Souza, V., Del Burgo, R., del Peral, L., del Valle, M. V., Delgado, C., della Volpe, D., Depaoli, D., Di Girolamo, T., Di Piano, A., Di Pierro, F., Di Tria, R., Di Venere, L., Diebold, S., Dinesh, A., Djuvsland, J., Donini, A., Dörner, J., Doro, M., Duangchan, C., Ducci, L., Dwarkadas, V. V., Ebr, J., Eckner, C., Egberts, K., Elsässer, D., Emery, G., Escañuela Nieves, C., Escarate, P., Escobar Godoy, M., Esposito, P., Ettori, S., Falceta-Goncalves, D., Fedorova, E., Fegan, S., Feng, Q., Ferrand, G., Ferrarotto, F., Fiandrini, E., Fiasson, A., Filipovic, M., Fioretti, V., Foffano, L., Fontaine, G., Frías García-Lago, F., Fukazawa, Y., Fukui, Y., Furniss, A., Galanti, G., Galaz, G., Gallozzi, S., Gammaldi, V., García Soto, S., Garczarczyk, M., Gasbarra, C., Gasparrini, D., Gaug, M., Germani, S., Ghalumyan, A., Gianotti, F., Giesbrecht Formiga Paiva, J. G., Giglietto, N., Giordano, F., Giuffrida, R., Glicenstein, J. F., Glombitza, J., Goldoni, P., González, J. M., Goulart Coelho, J., Gradetzke, T., Granot, J., Gréaux, L., Green, D., Green, J. G., Grolleron, G., Guedes, L. M. V., Gueta, O., Hadasch, D., Hamal, P., Hanlon, W., Hara, S., Harvey, V. M., Hassan, T., Hayashi, K., Heß, B., Heckmann, L., Heller, M., Hiroshima, N., Hnatyk, B., Hnatyk, R., Hoffmann, D., Hofmann, W., Horan, D., Horvath, P., Hrupec, D., Hussain, S., Iarlori, M., Inada, T., Incardona, F., Inoue, S., Inoue, Y., Iocco, F., Iuliano, A., Jahanvi, Jamrozy, M., Janecek, P., Jankowsky, F., Jarnot, C., Jaroschewski, I., Jean, P., Jiménez Martínez, I., Jin, W., Jurysek, J., Kalekin, O., Karas, V., Kataoka, J., Kaufmann, S., Kazanas, D., Keita, T., Kerszberg, D., Kieda, D. B., Kissmann, R., Kluźniak, W., Kohri, K., Kolar, D., Komin, N., Kornecki, P., Kowal, G., Kubo, H., Kushida, J., La Barbera, A., La Palombara, N., Lacave, B., Láinez, M., Lamastra, A., Lapington, J., Lazarević, S., Lenain, J. P., Leone, F., Leonora, E., Li, Y., Lindfors, E., Linhoff, M., Lombardi, S., Longo, F., López-Coto, R., López-Moya, M., López-Oramas, A., Loporchio, S., Lozano Bahilo, J., Luciani, H., Luque-Escamilla, P. L., Lyard, E., Macias, O., Mackey, J., Majumdar, P., Malyshev, D., Mandat, D., Mangano, S., Manicò, G., Marchetti, A., Mariotti, M., Márquez, I., Marsella, G., Martín Domínguez, D., Martínez, G. A., Martínez, M., Martinez, O., Mazin, D., Mello, A. J. T. S., Méndez Gallego, J., Menon, S., Mereghetti, S., Meyer, D. M. A., Meyer, M., Miceli, D., Miceli, M., Michailidis, M., Miener, T., Miranda, J. M., Mitchell, A., Molero, M., Molfese, C., Molina Delicado, M., Molina, E., Montaruli, T., Moralejo, A., Moreno Ramos, A., Morselli, A., Moulin, E., Moya Zamanillo, V., Munari, K., Murach, T., Muraczewski, A., Muraishi, H., Nakamori, T., Nemmen, R., Neto, J. P., Niemiec, J., Nieto, D., Nievas Rosillo, M., Nikołajuk, M., Nishijima, K., Noda, K., Nosek, D., Novotny, V., Nozaki, S., Okumura, A., Olive, J. F., Ong, R. A., Orito, R., Orlandini, M., Orlando, E., Orlando, S., Otero-Santos, J., Oya, I., Ozlati Moghadam, M., Pagliaro, A., Palatiello, M., Pandey, A., Panebianco, G., Paneque, D., Pantaleo, F. R., Paoletti, R., Paredes, J. M., Parmiggiani, N., Patricelli, B., Pech, M., Pecimotika, M., Peresano, M., Pérez Aguilera, A., Pérez-Romero, J., Peron, G., Perrotta, F., Persic, M., Petruk, O., Pfeifle, F., Pietropaolo, E., Pinchbeck, L., Pintore, F., Pirola, G., Pittori, C., Podobnik, F., Pohl, M., Poireau, V., Pollet, V., Ponti, G., Pozo González, C., Prandini, E., Principe, G., Prouza, M., Pueschel, E., Pühlhofer, G., Pumo, M. L., Quirrenbach, A., Rainò, S., Rando, R., Recchia, S., Regeard, M., Reimer, A., Reimer, O., Reis, I., Reisenegger, A., Rhode, W., Ribó, M., Ricci, C., Richtler, T., Rico, J., Rieger, F., Riitano, L., Ríos, C., Rizi, V., Roache, E., Rodríguez-Fernández, G., Rodríguez Frías, M. D., Rodríguez-Vázquez, J. J., Romano, P., Romeo, G., Rosado, J., Rosales de Leon, A., Rowell, G., Roy, A., Rudak, B., Ruina, A., Ruiz-Velasco, E., Queiroz, F. S., Sadeh, I., Saha, L., Salzmann, H., Sánchez-Conde, M., Sangiorgi, P., Sano, H., Santos-Lima, R., Sapienza, V., Sarkar, S., Saturni, F. G., Savarese, S., Savchenko, V., Scherer, A., Schiavone, F., Schipani, P., Schussler, F., Sengupta, D., Sergijenko, O., Sguera, V., Siejkowski, H., Silvestri, G., Simongini, A., Siqueira, C., Sliusar, V., Sofia, I., Sol, H., Spiga, D., Spinello, S., Stamerra, A., Stanič, S., Starecki, T., Starling, R., Stolarczyk, T., Suda, Y., Tajima, H., Takahashi, M., Takeishi, R., Tanaka, S. J., Tejedor, L. A., Teshima, M., Testa, V., Tian, W. W., Tibaldo, L., Tibolla, O., Tingay, S. J., Tombesi, F., Tonev, D., Torradeflot, F., Torres, D. F., Tothill, N., Tramacere, A., Travnicek, P., Trois, A., Truzzi, S., Tutone, A., Vacula, M., van Eldik, C., Vandenbroucke, J., Vassiliev, V., Vázquez Acosta, M., Vecchi, M., Ventura, S., Vercellone, S., Verna, G., Viale, I., Viana, A., Viaux, N., Vigliano, A., Vignatti, J., Vigorito, C. F., Visentin, E., Vitale, V., Voitsekhovskyi, V., Vorobiov, S., Voutsinas, G., Walter, R., Wechakama, M., White, M., Wierzcholska, A., Wohlleben, F., Xotta, F., Yamazaki, R., Yao, Y., Yoshikoshi, T., Zavrtanik, D., Zavrtanik, M., Zech, A., Zhang, W., Zhdanov, V. I., Živec, M. & Zuriaga-Puig, J., 1 Dec 2025, In: Monthly Notices of the Royal Astronomical Society. 544, 3, p. 2946-2986 41 p.

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

    Open Access

  • Revisiting Two Decades of GRB Observations: Assessing Missed Very High-Energy Detections and Future Prospects

    Ashkar, H., Fegan, S. & Sangaré, A., 30 Dec 2025, In: Proceedings of Science. 501, 555.

    Research output: Contribution to journal › Conference article › peer-review

    Open Access

  • The H.E.S.S. Extragalactic sky survey with the first decade of observations

    Aharonian, F., Ait Benkhali, F., Aschersleben, J., Ashkar, H., Backes, M., Barbosa Martins, V., Batzofin, R., Becherini, Y., Berge, D., Bernlöhr, K., Böttcher, M., Boisson, C., Bolmont, J., De Bony De Lavergne, M., Borowska, J., Bouyahiaoui, M., Bradascio, F., Brose, R., Brown, A. & Brun, F. & 122 others, Bruno, B., Bulik, T., Burger-Scheidlin, C., Bylund, T., Casanova, S., Celic, J., Cerruti, M., Chand, T., Chandra, S., Chen, A., Chibueze, J., Chibueze, O., Cotter, G., Cristofari, P., Mbarubucyeye, J. D., Davids, I. D., Devin, J., Djuvsland, J., Dmytriiev, A., Egberts, K., Einecke, S., Fegan, S., Fontaine, G., Funk, S., Gabici, S., Glicenstein, J. F., Glombitza, J., Goswami, P., Grolleron, G., Haerer, L., Hea, B., Hinton, J. A., Hofmann, W., Holch, T. L., Holler, M., Horns, D., Huang, Z., Jamrozy, M., Jankowsky, F., Jardin-Blicq, A., Kasai, E., Katarzyaski, K., Khatoon, R., Khélifi, B., Komin, N., Kosack, K., Kostunin, D., Kundu, A., Lang, R. G., Le Stum, S., Lemière, A., Lemoine-Goumard, M., Lenain, J. P., Leuschner, F., Luashvili, A., Mackey, J., Malyshev, D., Marandon, V., Martí-Devesa, G., Marx, R., Mehta, A., Mitchell, A., Moderski, R., Mohrmann, L., Montanari, A., De Naurois, M., Niemiec, J., O-Brien, P., Olivera-Nieto, L., De Ona Wilhelmi, E., Ostrowski, M., Panny, S., Panter, M., Pensec, U., Pühlhofer, G., Punch, M., Quirrenbach, A., Ravikularaman, S., Regeard, M., Reimer, A., Reimer, O., Reis, I., Ren, H., Reville, B., Rieger, F., Rowell, G., Rudak, B., Ruiz-Velasco, E., Sahakian, V., Salzmann, H., Sanchez, D. A., Santangelo, A., Sasaki, M., Schäfer, J., Schüssler, F., Shapopi, J. N. S., Sharma, A., Sol, H., Spencer, S., Stawarz, Steenkamp, R., Steinmassl, S., Steppa, C., Suzuki, H., Takahashi, T., Tanaka, T., Taylor, A. M., Terrier, R., Thakur, A., Tsirou, M., Van Eldik, C., Vecchi, M., Venter, C., Vink, J., Völk, H. J., Wach, T., Wagner, S. J., Wierzcholska, A., Zacharias, M., Zdziarski, A. A., Zech, A. & Åywucka, N., 1 Mar 2025, In: Astronomy and Astrophysics. 695, A261.

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

    Open Access

  • All sky archival search for FRB high energy counterparts with Swift and Fermi

    Ashkar, H., El Bouhaddouti, M., Fegan, S. & Schüssler, F., 27 Sept 2024, In: Proceedings of Science. 444, 555.

    Research output: Contribution to journal › Conference article › peer-review

  • Bright blazar flares with CTA

    CTA Consortium, 27 Sept 2024, In: Proceedings of Science. 444, 850.

    Research output: Contribution to journal › Conference article › peer-review

  • Broadband multi-wavelength properties of M87 during the 2018 EHT campaign including a very high energy flaring episode

    The Event Horizon Telescope - Multi-wavelength science working group, The Event Horizon Telescope Collaboration, The Fermi Large Area Telescope Collaboration, H.E.S.S. Collaboration, MAGIC Collaboration, VERITAS collaboration & EAVN Collaboration, 1 Dec 2024, In: Astronomy and Astrophysics. 692, A140.

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

    Open Access

  • Ctapipe - Prototype Open Event Reconstruction Pipeline for the Cherenkov Telescope Array

    CTA Consortium and Observatory, 27 Sept 2024, In: Proceedings of Science. 444, 703.

    Research output: Contribution to journal › Conference article › peer-review

View all 483 research outputs