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Halim Ashkar

Post-doctoral Researcher

20192026

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  • A MeerKAT search for persistent radio sources towards twenty-five localized fast radio bursts

    Mfulwane, L. L., Chibueze, J. O., Letsele, T. P., Nyambe, T. M., Venter, C., Bezuidenhout, M. C., Stappers, B. W., Spitler, L. G., Caleb, M., Deller, A., Fortunato, J. A. S., Cornejo, B., Schüssler, F., Ashkar, H., Bradascio, F., Kalita, S., Kundu, A., Kramer, M., Keane, E. F. & Weltman, A., 1 Mar 2026, In: Monthly Notices of the Royal Astronomical Society. 546, 3, stag166.

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

    Open Access

  • Constraining the nature of the most extreme Galactic particle accelerator: H.E.S.S. observations of the microquasar V4641 Sgr

    Acharyya, A., Aharonian, F., Ashkar, H., Backes, M., Batzofin, R., Berge, D., Bernlöhr, K., Böttcher, M., Boisson, C., Bolmont, J., Brun, F., Bruno, B., Burger-Scheidlin, C., Bylund, T., Casanova, S., Celic, J., Cerruti, M., Chen, A., Chernyakova, M. & Chibueze, J. O. & 114 others, Chibueze, O., Cornejo, B., Cotter, G., De Assis Scarpin, J., De Bony De Lavergne, M., De Naurois, M., De Oña Wilhelmi, E., Delgado Giler, A. G., Devin, J., Djannati-Ataï, A., Dmytriiev, A., Egberts, K., Egg, K., Ernenwein, J. P., Escañuela Nieves, C., Fauverge, P., Feijen, K., Filipovic, M. D., Fontaine, G., Funk, S., Gabici, S., Gallant, Y. A., Glicenstein, J. F., Glombitza, J., Goswami, P., Grondin, M. H., Heckmann, L., Heß, B., Hinton, J. A., Hofmann, W., Holch, T. L., Holler, M., Jamrozy, M., Jankowsky, F., Jardin-Blicq, A., Jaroschewski, I., Jimeno, D., Jung-Richardt, I., Katarzyski, K., Kerszberg, D., Khélifi, B., Komin, N., Kosack, K., Kostunin, D., Lang, R. G., Lazarevic, S., Lemière, A., Lemoine-Goumard, M., Lenain, J. P., Liniewicz, P., Luashvili, A., Mackey, J., Malyshev, D., Marandon, V., Mayer, M. G. F., Mehta, A., Mitchell, A. M. W., Moderski, R., Mohrmann, L., Montanari, A., Moulin, E., Niemiec, J., Olivera-Nieto, L., Moghadam, M. O., Panny, S., Parsons, R. D., Pensec, U., Pichard, P., Preis, T., Pühlhofer, G., Punch, M., Quirrenbach, A., Reimer, A., Reimer, O., Reis, I., Remy, Q., Ren, H. X., Reville, B., Rieger, F., Roellinghoff, G., Rowell, G., Rudak, B., Sabri, K., Safi-Harb, S., Sahakian, V., Santangelo, A., Sasaki, M., Schüssler, F., Shapopi, J. N. S., Si Said, W., Sol, H., Stawarz, Steinmassl, S., Tanaka, T., Taylor, A. M., Taylor, G. L., Terrier, R., Tian, Y., Timmermans, A., Tsirou, M., Tsuji, N., Unbehaun, T., Van Eldik, C., Vecchi, M., Venter, C., Vink, J., Voitsekhovskyi, V., Wagner, S. J., Wierzcholska, A., Zacharias, M., Zdziarski, A. A., Zech, A., Zhong, W. & Takekawa, S., 1 Feb 2026, In: Astronomy and Astrophysics. 706, A8.

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

    Open Access

  • Detection of very high-energy gamma-ray emission from Eta Carinae during its 2020 periastron passage

    Aharonian, F., Ait Benkhali, F., Aschersleben, J., Ashkar, H., Barbosa Martins, V., Batzofin, R., Becherini, Y., Berge, D., Bernlöhr, K., Böttcher, M., Boisson, C., Bolmont, J., De Bony De Lavergne, M., Bradascio, F., Brose, R., Brown, A., Brun, F., Bruno, B., Burger-Scheidlin, C. & Casanova, S. & 119 others, Celic, J., Cerruti, M., Chand, T., Chandra, S., Chen, A., Chibueze, J., Chibueze, O., Collins, T., Cotter, G., Damascene Mbarubucyeye, J., De Assis Scarpin, J., Devin, J., Djannati-Ataï, A., Djuvsland, J., Dmytriiev, A., Egberts, K., Einecke, S., Ernenwein, J. P., Escañuela Nieves, C., Feijen, K., Filipovic, M., Fontaine, G., Funk, S., Gabici, S., Glicenstein, J. F., Grolleron, G., Grondin, M. H., Haerer, L., Heaß, B., Hinton, J. A., Hofmann, W., Holch, T. L., Holler, M., Horns, D., Huang, Z., Jamrozy, M., Jankowsky, F., Jardin-Blicq, A., Jung-Richardt, I., Katarzyński, K., Khatoon, R., Khélifi, B., Kluźniak, W., Komin, N., Kosack, K., Kostunin, D., Lang, R. G., Le Stum, S., Lemière, A., Lemoine-Goumard, M., Lenain, J. P., Luashvili, A., Mackey, J., Malyshev, D., Marandon, V., Marcowith, A., Martí-Devesa, G., Marx, R., Mehta, A., Mitchell, A., Moderski, R., Moghadam, M. O., Mohrmann, L., Moulin, E., De Naurois, M., Niemiec, J., Ohm, S., Olivera-Nieto, L., De Ona Wilhelmi, E., Ostrowski, M., Panny, S., Panter, M., Parsons, R. D., Pensec, U., Pühlhofer, G., Quirrenbach, A., Ravikularaman, S., Regeard, M., Reimer, A., Reimer, O., Remy, Q., Ren, H., Reville, B., Rieger, F., Rowell, G., Rudak, B., Ruiz-Velasco, E., Sabri, K., Sahakian, V., Salzmann, H., Santangelo, A., Sasaki, M., Schäfer, J., Schüssler, F., Schutte, H. M., Shapopi, J. N. S., Spencer, S., Stawarz, Steenkamp, R., Steinmassl, S., Steppa, C., Streil, K., Tanaka, T., Terrier, R., Tluczykont, M., Tsirou, M., Tsuji, N., Van Eldik, C., Vecchi, M., Venter, C., Wach, T., Wagner, S. J., Werner, F., White, R., Wierzcholska, A., Zacharias, M., Zdziarski, A. A., Zech, A. & Zywucka, N., 1 Feb 2025, In: Astronomy and Astrophysics. 694, A328.

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

    Open Access

  • H.E.S.S. programme searching for VHE gamma rays associated with FRBs

    the H.E.S.S. Collaboration, 1 Jul 2025, In: Journal of Cosmology and Astroparticle Physics. 2025, 7, 086.

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

    Open Access

  • Investigating Fast Radio Bursts with H.E.S.S. Multi-Wavelength Follow-Up and Constraints on Gamma-Ray Emission

    H.E.S.S. Collaboration, 30 Dec 2025, In: Proceedings of Science. 501, 582.

    Research output: Contribution to journal › Conference 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

  • The H.E.S.S. Gravitational Wave and Gamma-Ray Burst Follow-Up Programs

    H.E.S.S. Collaboration, 30 Dec 2025, In: Proceedings of Science. 501, 615.

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

    Open Access

  • tilepy: Smart Scheduling for Multi-Messenger Astronomy from Earth to Orbit

    Ashkar, H., Seglar-Arroyo, M., Schussler, F., Kiendrébéogo, W. & de Bony de Lavergne, M., 30 Dec 2025, In: Proceedings of Science. 501, 914.

    Research output: Contribution to journal › Conference 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

View all 130 research outputs