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1. Millinovae: a new class of transient supersoft X-ray sources

Author

Mróz, Przemek, Król, Krzysztof, Szegedi, Hélène, Charles, Philip, Page, Kim L., Udalski, Andrzej, Buckley, David A. H., Dewangan, Gulab, Meintjes, Pieter, Szymański, Michał K., Soszyński, Igor, Pietrukowicz, Paweł, Kozłowski, Szymon, Poleski, Radosław, Skowron, Jan, Ulaczyk, Krzysztof, Gromadzki, Mariusz, Rybicki, Krzysztof, Iwanek, Patryk, Wrona, Marcin, and Mróz, Mateusz J.

Subjects
Astrophysics - Solar and Stellar Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

Some accreting binary systems containing a white dwarf (such as classical novae or persistent supersoft sources) are seen to emit low energy X-rays with temperatures of ~10^6 K and luminosities exceeding 10^35 erg/s. These X-rays are thought to originate from nuclear burning on the white dwarf surface, either caused by a thermonuclear runaway (classical novae) or a high mass accretion rate that sustains steady nuclear burning (persistent sources). The discovery of transient supersoft X-rays from ASASSN-16oh challenged these ideas, as no signatures of nuclear fusion were detected, and the origin of these X-rays remains controversial. It was unclear whether this star was one of a kind or representative of a larger, as yet undiscovered, group. Here we present the discovery of 29 stars located in the direction of the Magellanic Clouds exhibiting long-duration, symmetrical optical outbursts similar to that seen in ASASSN-16oh. We observed one of these objects during an optical outburst and found it to be emitting transient supersoft X-rays, while no signatures of mass ejection (indicative of a classical nova eruption) were detected. We therefore propose that these objects form a homogeneous group of transient supersoft X-ray sources, which we dub `millinovae' because their optical luminosities are approximately a thousand times fainter than those of ordinary classical novae., Comment: submitted to AAS Journals

Published
2024

2. Transient behavior of three SU UMa-type dwarf novae; AR Pic, QW Ser and V521 Peg

Author

Szegedi, Hélène, Charles, Philip A., Meintjes, Pieter J., and Odendaal, Alida

Subjects
Astrophysics - Solar and Stellar Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

Changes in the supercycle lengths of some SU UMa-type dwarf novae have been detected by other studies, and indicate that the mass transfer rates noticeably decrease over time. We investigated the supercycle lengths of three SU UMa-type dwarf novae: AR Pic, QW Ser and V521 Peg, to determine if they have detectable changes in their supercycles. We present the results of optical spectroscopic and photometric observations of these sources. Our observations were conducted in 2016 and 2017 at the Boyden Observatory and the Sutherland station of the South African Astronomical Observatory. The quiescent results indicated that all three sources are typical SU UMa-type dwarf novae. We also present results of AR Pic and QW Ser in outburst and of V521 Peg during a precursor outburst and superoutburst. Light curves were supplemented by the Catalina Real-Time Transient Survey, the ASAS-3 and ASAS-SN archives, and the AAVSO International database in order to investigate the long-term behavior of these sources. Our results combined with catalogued properties for all short-period dwarf novae, shows a possible relationship between the supercycle time in SU UMa systems and their orbital periods, which is interpreted as the decline in the mass transfer rate as systems evolve toward and away from the 'period minimum'. At the shortest orbital periods, SU UMa systems are almost indistinguishable from WZ Sge systems. However, we propose that the scaleheight between the secondary's photosphere and L1 may be a factor that distinguish the SU UMa subclasses., Comment: 14 pages, 19 figures, accepted for publication in MNRAS

Published
2022
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4. The Eta Carinae 2020 periastron passage as seen by H.E.S.S.

Author

Steinmassl, Simon, primary, Marandon, Vincent, additional, Remy, Quentin, additional, Hinton, Jim, additional, Collaboration, H.E.S.S., additional, Aharonian, Felix, additional, Ait-Benkhali, Faical, additional, Alkan, Attila, additional, Aschersleben, Jann, additional, Ashkar, Halim, additional, Backes, Michael, additional, Baktash, Ali, additional, Barbosa Martins, Victor, additional, Barnacka, Anna, additional, Barnard, Joleen, additional, Batzofin, Rowan William, additional, Becherini, Yvonne, additional, Beck, Geoffrey, additional, Berge, David, additional, Bernloehr, Konrad, additional, Bi, Baiyang, additional, Boettcher, Markus, additional, Boisson, Catherine, additional, Bolmont, Julien, additional, Bony (de), Mathieu, additional, Borowska, Jowita, additional, Bouyahiaoui, Makarim, additional, Bradascio, Federica, additional, Breuhaus, Mischa, additional, Brose, Robert, additional, Brown, Anthony, additional, Brun, Francois, additional, Bruno, Benedetta, additional, Bulik, Tomasz, additional, Burger-Scheidlin, Christopher, additional, Bylund, Thomas, additional, Cangemi, Floriane, additional, Caroff, Sami, additional, Casanova, Sabrina, additional, Cecil, Rahul, additional, Celic, Jelena, additional, Cerruti, Matteo, additional, Chambéry, Pauline, additional, Chand, Tej Bahadur, additional, Chandra, Sunil, additional, Chen, Andrew, additional, Chibueze, James Okwe, additional, Chibueze, Ogochukwu, additional, Collins, Tiffany, additional, Cotter, Garret, additional, Cristofari, Pierre, additional, Damascene Mbarubucyeye, Jean, additional, Davids, Isak Delberth, additional, Davies, James, additional, de Jonge, Laenita, additional, Devin, Justine, additional, Djannati-Ataï, Arache, additional, Djuvsland, Julia Isabel, additional, Dmytriiev, Anton, additional, Doroshenko, Victor, additional, Dreyer, Lente, additional, Du Plessis, Louis, additional, Egberts, Kathrin, additional, Einecke, Sabrina, additional, ERNENWEIN, Jean-Pierre, additional, Fegan, Steven, additional, Feijen, Kirsty, additional, Fichet de Clairfontaine, Gaëtan, additional, Fontaine, Gerard, additional, Frans, Lott, additional, Fuessling, Matthias, additional, Funk, Stefan, additional, Gabici, Stefano, additional, Gallant, Yves, additional, Ghafourizadeh, Shahede, additional, Giavitto, Gianluca, additional, Giunti, Luca, additional, Glawion, Dorit, additional, Glicenstein, Jean-Francois, additional, Glombitza, Jonas, additional, Goswami, Pranjupriya, additional, Grolleron, Guillaume, additional, Grondin, Marie-Hélène, additional, Haerer, Lucia, additional, Hattingh, Sumari, additional, Haupt, Maria, additional, HERMANN, German, additional, Hofmann, Werner, additional, Holch, Tim, additional, Holler, Markus, additional, Horns, Dieter, additional, Huang, Zhiqiu, additional, Jaitly, Annanay, additional, Jamrozy, Marek, additional, Jankowsky, Felix, additional, Jardin-Blicq, Armelle, additional, Joshi, Vikas, additional, Jung-Richardt, Ira, additional, Kasai, Eli, additional, Katarzynski, Krzysztof, additional, Katjaita, Hiiko, additional, Khangulyan, Dmitry, additional, Khatoon, Rukaiya, additional, Khelifi, Bruno, additional, Klepser, Stefan, additional, Kluzniak, Wlodek, additional, Komin, Nukri, additional, Konno, Ruslan, additional, Kosack, Karl, additional, Kostunin, Dmitriy, additional, Kundu, Anu, additional, Lamanna, Giovanni, additional, Lang, Rodrigo Guedes, additional, Le Stum, Sebastien, additional, Lefranc, Valentin, additional, Leitl, Franziska, additional, Lemiere, Anne, additional, Lemoine-Goumard, Marianne, additional, Lenain, Jean-Philippe, additional, Leuschner, Fabian, additional, Luashvili, Anna, additional, Lypova, Iryna, additional, Mackey, Jonathan, additional, Malyshev, Denys, additional, Malyshev, Dmitry, additional, Marcowith, Alexandre, additional, Marinos, Peter David, additional, Marti'i-Devesa, Guillem, additional, Marx, Ramin, additional, Maurin, Gilles, additional, Mehta, Abhay, additional, Meintjes, Pieter, additional, Meyer, Manuel, additional, Mitchell, Alison, additional, Moderski, Rafal, additional, Mohrmann, Lars, additional, Montanari, Alessandro, additional, Moore, Chris, additional, Moulin, Emmanuel, additional, Murach, Thomas, additional, Nakashima, Kaori, additional, Naurois (de), Mathieu, additional, Ndiyavala, Hambeleleni, additional, Niemiec, Jacek, additional, Noel, Angel, additional, O'Brien, Paul, additional, Ohm, Stefan, additional, Olivera-Nieto, Laura, additional, Ona-Wilhelmi (de), Emma, additional, Ostrowski, Michal, additional, Oukacha, Enzo, additional, Panny, Sebastian, additional, Panter, Michael, additional, Parsons, Dan, additional, Pensec, Ugo, additional, Peron, Giada, additional, Pita, Santiago, additional, Poireau, Vincent, additional, Prokhorov, Dmitry, additional, Prokoph, Heike, additional, PUEHLHOFER, Gerd, additional, Punch, Michael, additional, Quirrenbach, Andreas, additional, Regeard, Maxime, additional, Reichherzer, Patrick, additional, Reimer, Anita, additional, Reimer, Olaf, additional, Reis, Igor, additional, Ren, Helena X., additional, Renaud, Matthieu, additional, Reville, Brian, additional, Rieger, Frank, additional, Roellinghoff, Gerrit, additional, Rol, Evert, additional, Rowell, Gavin P, additional, Rudak, Bronislaw, additional, Rueda Ricarte, Hector, additional, Ruiz Velasco, Edna, additional, Sabri, Karim, additional, Sahakian, Vardan, additional, Sailer, Simon, additional, Salzmann, Heiko, additional, Sanchez, David, additional, Santangelo, Andrea, additional, Sasaki, Manami, additional, Schaefer, Johannes, additional, Schuessler, Fabian, additional, Schutte, Hester, additional, Senniappan, Mohanraj, additional, Shapopi, Jimmy N.S., additional, Shilunga, Sigrid, additional, Shiningayamwe, Kleopas, additional, Sol, Helene, additional, Spackman, Hugh, additional, Specovius, Andreas, additional, Spencer, Samuel, additional, Stawarz, Lukasz, additional, Steenkamp, Riaan, additional, Stegmann, Christian, additional, Steppa, Constantin, additional, Streil, Katrin, additional, Sushch, Iurii, additional, Suzuki, Hiromasa, additional, Takahashi, Tadayuki, additional, Tanaka, Takaaki, additional, Tavernier, Thomas, additional, Taylor, Andrew, additional, Terrier, Regis, additional, Thakur, Adnaan, additional, Thiersen, Hannes, additional, Thorpe-Morgan, Charles, additional, Tluczykont, Martin, additional, Tsirou, Michelle, additional, Tsuji, Naomi, additional, Tuffs, Richard, additional, Uchiyama, Yasunobu, additional, Ullmo, Marion, additional, Unbehaun, Tim, additional, van der Merwe, Pieter, additional, van Eldik, Christopher, additional, van Soelen, Brian, additional, Vasileiadis, George, additional, Vecchi, Manuela, additional, Veh, Johannes, additional, Venter, Christo, additional, Vink, Jacco, additional, Voelk, Heinrich, additional, Vogel, Naomi, additional, Wach, Tina, additional, Wagner, Stefan, additional, Werner, Felix, additional, White, Richard, additional, Wierzcholska, Alicja, additional, Wong, Yu Wun, additional, Yassin, Hend Mahmoud, additional, Zacharias, Michael, additional, Zargaryan, Davit, additional, Zdziarski, Andrzej, additional, Zech, Andreas, additional, Zhu, Sylvia, additional, Zmija, Andreas, additional, Zouari, Samuel, additional, and Żywucka, Natalia, additional

Published
2023
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5. The search for pulsed radio and gamma-ray emission from the cataclysmic variable system AE Aquarii using MeerKAT and Fermi-LAT data

Author

Madzime, Spencer Tendai, Meintjes, Pieter, Van Heerden, Hendrik, Meintjes, Pieter, and Van Heerden, Hendrik

Abstract

The nova-like AE Aquarii was extensively studied using 11 years of data and contemporaneous optical data with the aim to establish pulsed gamma-ray emission at the rotational period (33.08 s) of the white dwarf and the first harmonic (16.54 s). In addition the study was also aimed at identifying pulsed radio emissions at or near the fundamental frequency. Therefore the search of pulsed radio and gamma-ray emission using MeerKAT (radio) data and upgraded Fermi-LAT pass 8 (gamma-ray) datasets is presented. The L-band 45 mins observation of AE Aquarii resulted in the first detection of this source by the MeerKAT telescope. Also, the pulsed radio emission search resulted in the first detection of pulsed emission modulated at the white dwarf’s rotational period (33.08 s). Further investigation resulted in no indication of any pulsations at the first harmonic (16.54 s). The pulsed signal’s overall strength is confined to lower L-band frequencies at the onset of the flare event. No pulsations were significant at the peak of the flare-like event. The spectral variation investigations revealed an optically thin spectrum. This optically thin spectrum observed in the MeerKAT data appears to be uncorrelated to the overall radio spectrum up to 1000 GHz. Hence, a correlation between the MeerKAT data and observations at higher frequencies could be an exciting topic for in-depth follow-up studies. Investigation for gamma-ray emission from AE Aquarii was conducted using an 11-year baseline of the archived upgraded Fermi-LAT pass 8 dataset. The standard binned and unbinned analyses techniques resulted in no detection of any significant gamma-ray excess in the region of AE Aquarii. However, the search for transient burst-like gamma-ray emission through a light curve revealed sections of the data with an excess significance of 2 s. A search for pulsed gamma-ray emission from these sections resulted in substantial evidence of pulsed signal from some of these sections with excess significance. An additional search for pulsed gamma-ray emission using shorter time bins resulted in detecting more significant pulsations at both the fundamental (33.08 s) and the first harmonic (16.54 s) frequencies. The stacked periodogram displayed clear evidence of particle acceleration from two polar zones of the white dwarf in AE Aquarii, which resulted in a double pulse. Periods contemporaneous to observed optical flares displayed weak pulsations in the noise level. After stacking the periodograms, a significance of over 4 s is seen at the fundamental frequency (33.08 s). A further search for evidence of sporadic burst-like gamma-ray emission from AE Aquarii using refined or more selective filtered data resulted in the detection of AE Aquarii with a significance of 14 s from both the binned and unbinned analyses techniques. The gamma-rays detected from a more constrained refined filtered dataset show clear gamma-ray spectral hardening above the galactic gamma-ray emission. These results have significant implications for follow-up studies of AE Aquarii using ground-based Cherenkov telescopes.

Published
2022
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6. The search for high-energy gamma-ray emission from the close binary system AR Scorpii using Fermi -LAT data

Author

Kaplan, Quinton, Meintjes, Pieter, Van Heerden, Hendrik, Meintjes, Pieter, and Van Heerden, Hendrik

Abstract

AR Scorpii (AR Sco) is an enigmatic close binary system which is observable across most of the electromagnetic spectrum. Multi-wavelength emission consists of both thermal and non-thermal components, where pulsed non-thermal emission has been observed from radio to X-ray. The apparent lack of accretion in the system also suggests that the highly magnetic white dwarf is primarily spin-powered, similar to pulsars, where particles can be accelerated to produce non-thermal emission. The multi-wavelength nature from radio to X-ray of AR Sco has been extensively studied and presented since 2016, showing a clear non-thermal synchrotron component from optical to X-ray. However, the parameters and processes towards the high-energy regime still need to be clearly verified and explored. Hence, a search for non-thermal γ-ray emission from AR Sco using archival Fermi data from the past decade has been performed. By using updated Fermi -LAT software and Pass 8 analysis methods, low-level upper-limit emission has been observed above 100 MeV, with a possible low-level pulsed signal at the spin period (P s = 117 s) of the white dwarf. Given the results, the possibility of non-thermal emission at higher energies can not be excluded. An updated spectral energy distribution using Fermi -LAT data was also produced to serve as a template for future studies using more sensitive Cherenkov telescope detectors like e.g. the Cherenkov Telescope Array (CTA).

Published
2022
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10. Revisiting the PeVatron candidate MGRO J1908+06 with an updated H.E.S.S. analysis

Author

Abdalla, Hassan, Aharonian, Felix, Barbosa Martins, Victor, Lohse, Thomas, Luashvili, Anna, Lypova, Iryna, Mackey, Jonathan, Majumdar, Jhilik, Malyshev, Denys, MALYSHEV, Dmitry, Marandon, Vincent, Marchegiani, Paolo, Marcowith, Alexandre, Barnacka, Anna, Mares, Arnaud, Marti'i-Devesa, Guillem, Marx, Ramin, Maurin, Gilles, Meintjes, Pieter, Meyer, Manuel, Moderski, Rafal, Mohrmann, Lars, de Ona Wilhelmi, E., Joshi, Vikas, Barnard, Monica, Mitchell, Alison, Montanari, Alessandro, Moore, Chris, Morris, Paul, Moulin, Emmanuel, Muller, Jacques, Murach, Thomas, Nakashima, Kaori, Naurois , Mathieu, Nayerhoda, Amid, Batzofin, Rowan, Ndiyavala, Hambeleleni, Niemiec, Jacek, Noel, Angel, O'Brien, Paul, Oberholzer, Laenita Lorraine, Ohm, Stefan, Khelifi, Bruno, Giunti, Luca, Olivera-Nieto, Laura, de Ona Wilhelmi, Emma Maria, Becherini, Yvonne, Ostrowski, Michal, Panny, Sebastian, Panter, Michael, Parsons, Dan, Peron, Giada, Pita, Santiago, Poireau, Vincent, Prokhorov, Dmitry, Prokoph, Heike, PUEHLHOFER, Gerd, Berge, David, Punch, Michael, Quirrenbach, Andreas, Reichherzer, Patrick, Reimer, Anita, Reimer, Olaf, Remy, Quentin, Renaud, Matthieu, Reville, Brian, Rieger, Frank, Romoli, Carlo, Bernloehr, Konrad, Rowell, Gavin, Rudak, Bronislaw, Rueda Ricarte, Hector, Ruiz Velasco, Edna, Sahakian, Vardan, Sailer, Simon, Salzmann, Heiko, Sanchez, David, Santangelo, Andrea, Sasaki, Manami, Bi, Baiyang, Schaefer, Johannes, Schutte, Hester, Schwanke, Ullrich, Schüssler, Fabian, Senniappan, Mohanraj, Seyffert, Albert, Shapopi, Jimmy N. S., Shiningayamwe, Kleopas, Simoni, Rachel, Sinha, Atreyee, Boettcher, Markus, Sol, Helene, Spackman, Hugh, Specovius, Andreas, Spencer, Samuel Timothy, Spir-Jacob, Marion, Stawarz, Lukasz, Steenkamp, Riaan, Stegmann, Christian, Steinmassl, Simon, Steppa, Constantin, Boisson, Catherine, Sun, Lei, Takahashi, Tadayuki, Tanaka, Takaaki, Tavernier, Thomas, Taylor, Andrew, Terrier, Regis, Thiersen, Hannes, Thorpe-Morgan, Charles, Tluczykont, Martin, Tomankova, Lenka, Ait-Benkhali, Faical, Bolmont, Julien, Tsirou, Michelle, Tsuji, Naomi, Tuffs, Richard, Uchiyama, Yasunobu, van der Walt, Johann, van Eldik, Christopher, van Rensburg, Carlo, van Soelen, Brian, Vasileiadis, George, Veh, Johannes, Bony , Mathieu, Venter, Christo, Vincent, Pascal, Vink, Jacco, Völk, Heinrich J., Wagner, Stefan, Watson, Jason John, Werner, Felix, White, Richard, Wierzcholska, Alicja, Wong, Yu Wun, Breuhaus, Mischa, Yassin, Hend, Yusafzai, Anke, Zacharias, Michael, Zanin, Roberta, Zargaryan, Davit, Zdziarski, Andrzej, Zech, Andreas, Zhu, Sylvia Jiechen, Zmija, Andreas, Zouari, Samuel, Brose, Robert, Zywucka, Natalia, H. E. S. S. Collaboration, Brun, Francois, Bulik, Tomasz, Bylund, Thomas, Cangemi, Floriane, Caroff, Sami, Casanova, Sabrina, Anguener, Oguzhan, Catalano, Jaqueline, Chambery, Pauline, Chand, Tej Bahadur, Chen, Andrew, Cotter, Garret, Curlo, Malgorzata, Dalgleish, Hannah, Mbarubucyeye, Jean Damascene, Davids, Isak Delberth, Davies, James, Arcaro, Cornelia, Devin, Justine, Djannati-Ataï, Arache, Dmytriiev, Anton, Donath, Axel, Doroshenko, Victor, Dreyer, Lente, Du Plessis, Louis, Duffy, Connor, Egberts, Kathrin, Einecke, Sabrina, Armand, Celine, ERNENWEIN, Jean-Pierre, Fegan, Steven, Feijen, Kirsty, Fiasson, Armand, Fichet de Clairfontaine, Gaëtan, Fontaine, Gerard, Frans, Lott, Füssling, Matthias, Funk, Stefan, Gabici, Stefano, Armstrong, Tom, Gallant, Yves, Giavitto, Gianluca, Glawion, Dorit, Glicenstein, Jean-Francois, Grondin, Marie-Hélène, Hattingh, Sumari, Haupt, Maria, HERMANN, German, Hinton, Jim, Hofmann, Werner, Ashkar, Halim, Hoischen, Clemens, Holch, Tim Lukas, Holler, Markus, Horns, Dieter, Huang, Zhiqiu, Huber, David, Hörbe, Mario, Jamrozy, Marek, Jankowsky, Felix, JUNG, Ira, Backes, Michael, Kasai, Eli, Katarzynski, Krzysztof, Katz, Ulì, Khangulyan, Dmitry, Klepser, Stefan, Kluzniak, Wlodek, Komin, Nukri, Konno, Ruslan, Kosack, Karl, Kostiunin, Dmitriy, Baghmanyan, Vardan, Kreter, Michael, Kukec Mezek, Gašper, Kundu, Anu, Lamanna, Giovanni, Le Stum, Sébastien, Lemiere, Anne, Lemoine-Goumard, Marianne, Lenain, Jean-Philippe, Leuschner, Fabian, Levy, Christelle, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), H.E.S.S., Naurois , Mathieu, Bony , Mathieu, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Photon, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Astrophysics, emission [photon], Acceleration, Pulsar, photon: emission, emission [gamma ray], Angular resolution, ddc:530, galaxy [gamma ray], Supernova remnant, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), gamma ray: galaxy, energy: high, cosmic radiation: propagation, Molecular cloud, gamma ray: emission, 13. Climate action, cosmic radiation: galaxy, Milagro, HESS - Abteilung Hinton, high [energy], galaxy [cosmic radiation], propagation [cosmic radiation], Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

37th International Cosmic Ray Conference, ICRC 2021, Berlin, Germany - Online, 12 Jul 2021 - 23 Jul 2021; Proceedings of Science / International School for Advanced Studies (ICRC2021), 779 (2021). doi:10.22323/1.395.0779, Detecting and studying galactic gamma-ray sources emitting very-high energy photons sheds light on the acceleration and propagation of cosmic rays presumably created in these sources. Currently, there are few sources emitting photons with energies exceeding 100 TeV. In this work we revisit the unidentified source MGRO J1908+06, initially detected by Milagro, using an updated H.E.S.S. dataset and analysis pipeline. The vicinity of the source contains a supernova remnant and pulsars as well as molecular clouds. This makes the identification of the primary source(s) of galactic cosmic rays as well as the nature of the gamma-ray emission challenging, especially in light of the recent HAWC and LHAASO detection of the high energy tail of its spectrum. Exploiting the better angular resolution as compared to particle detectors, we investigate the morphology of the source as well as its spectral properties., Published by SISSA, Trieste

Published
2021
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11. Astronomy outreach in Namibia: H.E.S.S. and beyond

Author

Dalgleish, Hannah, primary, Prokoph, Heike, additional, Zhu, Sylvia, additional, Backes, Michael, additional, Cotter, Garret, additional, Catalano, Jacqueline, additional, Ruiz Velasco, Edna, additional, Kasai, Eli, additional, Abdalla, Hassan, additional, Aharonian, Felix, additional, Ait-Benkhali, Faical, additional, Anguener, Oguzhan, additional, Arcaro, Cornelia, additional, Armand, Celine, additional, Armstrong, Tom, additional, Ashkar, Halim, additional, Baghmanyan, Vardan, additional, Barbosa Martins, Victor, additional, Barnacka, Anna, additional, Barnard, Monica, additional, Batzofin, Rowan William, additional, Becherini, Yvonne, additional, Berge, David, additional, Bernloehr, Konrad, additional, Bi, Baiyang, additional, Böttcher, Markus, additional, Boisson, Catherine, additional, Bolmont, Julien, additional, Bony (de), Mathieu, additional, Breuhaus, Mischa, additional, Brose, Robert, additional, Brun, Francois, additional, Bulik, Tomasz, additional, Bylund, Thomas, additional, Cangemi, Floriane, additional, Caroff, Sami, additional, Casanova, Sabrina, additional, Catalano, Jaqueline, additional, Chambery, Pauline, additional, Chand, Tej Bahadur, additional, Chen, Andrew, additional, Curlo, Malgorzata, additional, Damascene Mbarubucyeye, Jean, additional, Davids, Isak Delberth, additional, Davies, James, additional, Devin, Justine, additional, Djannati-Ataï, Arache, additional, Dmytriiev, Anton, additional, Donath, Axel, additional, Doroshenko, Victor, additional, Dreyer, Lente, additional, Du Plessis, Louis, additional, Duffy, Connor, additional, Egberts, Kathrin, additional, Einecke, Sabrina, additional, ERNENWEIN, Jean-Pierre, additional, Fegan, Steven, additional, Feijen, Kirsty, additional, Fiasson, Armand, additional, Fichet de Clairfontaine, Gaëtan, additional, Fontaine, Gerard, additional, Frans, Lott, additional, Fuessling, Matthias, additional, Funk, Stefan, additional, Gabici, Stefano, additional, Gallant, Yves, additional, Giavitto, Gianluca, additional, Giunti, Luca, additional, Glawion, Dorit, additional, Glicenstein, Jean-Francois, additional, Grondin, Marie-Hélène, additional, Hattingh, Sumari, additional, Haupt, Maria, additional, HERMANN, German, additional, Hinton, Jim, additional, Hofmann, Werner, additional, Hoischen, Clemens, additional, Holch, Tim, additional, Holler, Markus, additional, Horns, Dieter, additional, Huang, Zhi-Qiu, additional, Huber, David, additional, Hörbe, Mario, additional, Jamrozy, Marek, additional, Jankowsky, Felix, additional, Joshi, Vikas, additional, JUNG, Ira, additional, Katarzynski, Krzysztof, additional, Katz, Ulì, additional, Khangulyan, Dmitry, additional, Khelifi, Bruno, additional, Klepser, Stefan, additional, Kluzniak, Wlodek, additional, Komin, Nukri, additional, Konno, Ruslan, additional, Kosack, Karl, additional, Kostunin, Dmitriy, additional, Kreter, Michael, additional, Kukec Mezek, Gašper, additional, Kundu, Anu, additional, Lamanna, Giovanni, additional, Le Stum, Sebastien, additional, Lemiere, Anne, additional, Lemoine-Goumard, Marianne, additional, Lenain, Jean-Philippe, additional, Leuschner, Fabian, additional, Levy, Christelle, additional, Lohse, Thomas, additional, Luashvili, Anna, additional, Lypova, Iryna, additional, Mackey, Jonathan, additional, Majumdar, Jhilik, additional, Malyshev, Denys, additional, Malyshev, Dmitry, additional, Marandon, Vincent, additional, Marchegiani, Paolo, additional, Marcowith, Alexandre, additional, Mares, Arnaud, additional, Martí-Devesa, Guillem, additional, Marx, Ramin, additional, Maurin, Gilles, additional, Meintjes, Pieter, additional, Meyer, Manuel, additional, Mitchell, Alison, additional, Moderski, Rafal, additional, Mohrmann, Lars, additional, Montanari, Alessandro, additional, Moore, Chris, additional, Morris, Paul, additional, Moulin, Emmanuel, additional, Muller, Jacques, additional, Murach, Thomas, additional, Nakashima, Kaori, additional, Naurois (de), Mathieu, additional, Nayerhoda, Amid, additional, Davids, Hambeleleni, additional, Niemiec, Jacek, additional, Noel, Angel, additional, O'Brien, Paul, additional, Oberholzer, Laenita Lorraine, additional, Ohm, Stefan, additional, Olivera-Nieto, Laura, additional, Ona-Wilhelmi (de), Emma, additional, Ostrowski, Michal, additional, Panny, Sebastian, additional, Panter, Michael, additional, Parsons, Dan, additional, Peron, Giada, additional, Pita, Santiago, additional, Poireau, Vincent, additional, Prokhorov, Dmitry A, additional, PUEHLHOFER, Gerd, additional, Punch, Michael, additional, Quirrenbach, Andreas, additional, Reichherzer, Patrick, additional, Reimer, Anita, additional, Reimer, Olaf, additional, Remy, Quentin, additional, Renaud, Matthieu, additional, Reville, Brian, additional, Rieger, Frank, additional, Romoli, Carlo, additional, Rowell, Gavin P, additional, Rudak, Bronislaw, additional, Rueda Ricarte, Hector, additional, Sahakian, Vardan, additional, Sailer, Simon, additional, Salzmann, Heiko, additional, Sanchez, David, additional, Santangelo, Andrea, additional, Sasaki, Manami, additional, Schaefer, Johannes, additional, Schutte, Hester, additional, Schwanke, Ullrich, additional, Schüssler, Fabian, additional, Senniappan, Mohanraj, additional, Seyffert, Albert, additional, Shapopi, Jimmy N.S., additional, Shiningayamwe, Kleopas, additional, Simoni, Rachel, additional, Sinha, Atreyee, additional, Sol, Helene, additional, Spackman, Hugh, additional, Specovius, Andreas, additional, Spencer, Samuel Timothy, additional, Spir-Jacob, Marion, additional, Stawarz, Lukasz, additional, Steenkamp, Riaan, additional, Stegmann, Christian, additional, Steinmassl, Simon, additional, Steppa, Constantin, additional, Sun, Lei, additional, Takahashi, Tadayuki, additional, Tanaka, Takaaki, additional, Tavernier, Thomas, additional, Taylor, Andrew, additional, Terrier, Regis, additional, Thiersen, Hannes, additional, Thorpe-Morgan, Charles, additional, Tluczykont, Martin, additional, Tomankova, Lenka, additional, Tsirou, Michelle, additional, Tsuji, Naomi, additional, Tuffs, Richard, additional, Uchiyama, Yasunobu, additional, van der Walt, Johann, additional, van Eldik, Christopher, additional, van Rensburg, Carlo, additional, van Soelen, Brian, additional, Vasileiadis, George, additional, Veh, Johannes, additional, Venter, Christo, additional, Vincent, Pascal, additional, Vink, Jacco, additional, Völk, Heinrich J., additional, Wagner, Stefan, additional, Watson, Jason John, additional, Werner, Felix, additional, White, Richard, additional, Wierzcholska, Alicja, additional, Wong, Yu Wun, additional, Yassin, Hend Mahmoud, additional, Yusafzai, Anke, additional, Zacharias, Michael, additional, Zanin, Roberta, additional, Zargaryan, Davit, additional, Zdziarski, Andrzej, additional, Zech, Andreas, additional, Zmija, Andreas, additional, Zouari, Samuel, additional, and Żywucka, Natalia, additional

Published
2021
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12. The young massive stellar cluster Westerlund 1 in gamma rays as seen with H.E.S.S.

Author

Mohrmann, Lars, primary, Abdalla, Hassan, additional, Aharonian, Felix, additional, Ait-Benkhali, Faical, additional, Anguener, Oguzhan, additional, Arcaro, Cornelia, additional, Armand, Celine, additional, Armstrong, Tom, additional, Ashkar, Halim, additional, Backes, Michael, additional, Baghmanyan, Vardan, additional, Barbosa Martins, Victor, additional, Barnacka, Anna, additional, Barnard, Monica, additional, Batzofin, Rowan William, additional, Becherini, Yvonne, additional, Berge, David, additional, Bernloehr, Konrad, additional, Bi, Baiyang, additional, Böttcher, Markus, additional, Boisson, Catherine, additional, Bolmont, Julien, additional, Bony (de), Mathieu, additional, Breuhaus, Mischa, additional, Brose, Robert, additional, Brun, Francois, additional, Bulik, Tomasz, additional, Bylund, Thomas, additional, Cangemi, Floriane, additional, Caroff, Sami, additional, Casanova, Sabrina, additional, Catalano, Jaqueline, additional, Chambery, Pauline, additional, Chand, Tej Bahadur, additional, Chen, Andrew, additional, Cotter, Garret, additional, Curlo, Malgorzata, additional, Dalgleish, Hannah, additional, Damascene Mbarubucyeye, Jean, additional, Davids, Isak Delberth, additional, Davies, James, additional, Devin, Justine, additional, Djannati-Ataï, Arache, additional, Dmytriiev, Anton, additional, Donath, Axel, additional, Doroshenko, Victor, additional, Dreyer, Lente, additional, Du Plessis, Louis, additional, Duffy, Connor, additional, Egberts, Kathrin, additional, Einecke, Sabrina, additional, ERNENWEIN, Jean-Pierre, additional, Fegan, Steven, additional, Feijen, Kirsty, additional, Fiasson, Armand, additional, Fichet de Clairfontaine, Gaëtan, additional, Fontaine, Gerard, additional, Frans, Lott, additional, Fuessling, Matthias, additional, Funk, Stefan, additional, Gabici, Stefano, additional, Gallant, Yves, additional, Giavitto, Gianluca, additional, Giunti, Luca, additional, Glawion, Dorit, additional, Glicenstein, Jean-Francois, additional, Grondin, Marie-Hélène, additional, Hattingh, Sumari, additional, Haupt, Maria, additional, HERMANN, German, additional, Hinton, Jim, additional, Hofmann, Werner, additional, Hoischen, Clemens, additional, Holch, Tim, additional, Holler, Markus, additional, Horns, Dieter, additional, Huang, Zhi-Qiu, additional, Huber, David, additional, Hörbe, Mario, additional, Jamrozy, Marek, additional, Jankowsky, Felix, additional, Joshi, Vikas, additional, JUNG, Ira, additional, Kasai, Eli, additional, Katarzynski, Krzysztof, additional, Katz, Ulì, additional, Khangulyan, Dmitry, additional, Khelifi, Bruno, additional, Klepser, Stefan, additional, Kluzniak, Wlodek, additional, Komin, Nukri, additional, Konno, Ruslan, additional, Kosack, Karl, additional, Kostunin, Dmitriy, additional, Kreter, Michael, additional, Kukec Mezek, Gašper, additional, Kundu, Anu, additional, Lamanna, Giovanni, additional, Le Stum, Sebastien, additional, Lemiere, Anne, additional, Lemoine-Goumard, Marianne, additional, Lenain, Jean-Philippe, additional, Leuschner, Fabian, additional, Levy, Christelle, additional, Lohse, Thomas, additional, Luashvili, Anna, additional, Lypova, Iryna, additional, Mackey, Jonathan, additional, Majumdar, Jhilik, additional, Malyshev, Denys, additional, Malyshev, Dmitry, additional, Marandon, Vincent, additional, Marchegiani, Paolo, additional, Marcowith, Alexandre, additional, Mares, Arnaud, additional, Martí-Devesa, Guillem, additional, Marx, Ramin, additional, Maurin, Gilles, additional, Meintjes, Pieter, additional, Meyer, Manuel, additional, Mitchell, Alison, additional, Moderski, Rafal, additional, Montanari, Alessandro, additional, Moore, Chris, additional, Morris, Paul, additional, Moulin, Emmanuel, additional, Muller, Jacques, additional, Murach, Thomas, additional, Nakashima, Kaori, additional, Naurois (de), Mathieu, additional, Nayerhoda, Amid, additional, Davids, Hambeleleni, additional, Niemiec, Jacek, additional, Noel, Angel, additional, O'Brien, Paul, additional, Oberholzer, Laenita Lorraine, additional, Ohm, Stefan, additional, Olivera-Nieto, Laura, additional, Ona-Wilhelmi (de), Emma, additional, Ostrowski, Michal, additional, Panny, Sebastian, additional, Panter, Michael, additional, Parsons, Dan, additional, Peron, Giada, additional, Pita, Santiago, additional, Poireau, Vincent, additional, Prokhorov, Dmitry A, additional, Prokoph, Heike, additional, PUEHLHOFER, Gerd, additional, Punch, Michael, additional, Quirrenbach, Andreas, additional, Rauth, Romed, additional, Reichherzer, Patrick, additional, Reimer, Anita, additional, Reimer, Olaf, additional, Remy, Quentin, additional, Renaud, Matthieu, additional, Reville, Brian, additional, Rieger, Frank, additional, Romoli, Carlo, additional, Rowell, Gavin P, additional, Rudak, Bronislaw, additional, Rueda Ricarte, Hector, additional, Ruiz Velasco, Edna, additional, Sahakian, Vardan, additional, Sailer, Simon, additional, Salzmann, Heiko, additional, Sanchez, David, additional, Santangelo, Andrea, additional, Sasaki, Manami, additional, Schaefer, Johannes, additional, Schutte, Hester, additional, Schwanke, Ullrich, additional, Schüssler, Fabian, additional, Senniappan, Mohanraj, additional, Seyffert, Albert, additional, Shapopi, Jimmy N.S., additional, Shiningayamwe, Kleopas, additional, Simoni, Rachel, additional, Sinha, Atreyee, additional, Sol, Helene, additional, Spackman, Hugh, additional, Specovius, Andreas, additional, Spencer, Samuel Timothy, additional, Spir-Jacob, Marion, additional, Stawarz, Lukasz, additional, Steenkamp, Riaan, additional, Stegmann, Christian, additional, Steinmassl, Simon, additional, Steppa, Constantin, additional, Sun, Lei, additional, Takahashi, Tadayuki, additional, Tanaka, Takaaki, additional, Tavernier, Thomas, additional, Taylor, Andrew, additional, Terrier, Regis, additional, Thiersen, Hannes, additional, Thorpe-Morgan, Charles, additional, Tluczykont, Martin, additional, Tomankova, Lenka, additional, Tsirou, Michelle, additional, Tsuji, Naomi, additional, Tuffs, Richard, additional, Uchiyama, Yasunobu, additional, van der Walt, Johann, additional, van Eldik, Christopher, additional, van Rensburg, Carlo, additional, van Soelen, Brian, additional, Vasileiadis, George, additional, Veh, Johannes, additional, Venter, Christo, additional, Vincent, Pascal, additional, Vink, Jacco, additional, Völk, Heinrich J., additional, Wagner, Stefan, additional, Watson, Jason John, additional, Werner, Felix, additional, White, Richard, additional, Wierzcholska, Alicja, additional, Wong, Yu Wun, additional, Yassin, Hend Mahmoud, additional, Yusafzai, Anke, additional, Zacharias, Michael, additional, Zanin, Roberta, additional, Zargaryan, Davit, additional, Zdziarski, Andrzej, additional, Zech, Andreas, additional, Zhu, Sylvia, additional, Zmija, Andreas, additional, Zouari, Samuel, additional, and Żywucka, Natalia, additional

Published
2021
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13. Detection of new Extreme BL Lac objects with H.E.S.S. and Swift XRT

Author

Noel, Angel Priyana, primary, Abdalla, Hassan, additional, Aharonian, Felix, additional, Ait-Benkhali, Faical, additional, Anguener, Oguzhan, additional, Arcaro, Cornelia, additional, Armand, Celine, additional, Armstrong, Tom, additional, Ashkar, Halim, additional, Backes, Michael, additional, Baghmanyan, Vardan, additional, Barbosa Martins, Victor, additional, Barnacka, Anna, additional, Barnard, Monica, additional, Batzofin, Rowan William, additional, Becherini, Yvonne, additional, Berge, David, additional, Bernloehr, Konrad, additional, Bi, Baiyang, additional, Böttcher, Markus, additional, Boisson, Catherine, additional, Bolmont, Julien, additional, Bony (de), Mathieu, additional, Breuhaus, Mischa, additional, Brose, Robert, additional, Brun, Francois, additional, Bulik, Tomasz, additional, Bylund, Thomas, additional, Cangemi, Floriane, additional, Caroff, Sami, additional, Casanova, Sabrina, additional, Catalano, Jaqueline, additional, Chambery, Pauline, additional, Chand, Tej Bahadur, additional, Chen, Andrew, additional, Cotter, Garret, additional, Curlo, Malgorzata, additional, Dalgleish, Hannah, additional, Damascene Mbarubucyeye, Jean, additional, Davids, Isak Delberth, additional, Davies, James, additional, Devin, Justine, additional, Djannati-Ataï, Arache, additional, Dmytriiev, Anton, additional, Donath, Axel, additional, Doroshenko, Victor, additional, Dreyer, Lente, additional, Du Plessis, Louis, additional, Duffy, Connor, additional, Egberts, Kathrin, additional, Einecke, Sabrina, additional, ERNENWEIN, Jean-Pierre, additional, Fegan, Steven, additional, Feijen, Kirsty, additional, Fiasson, Armand, additional, Fichet de Clairfontaine, Gaëtan, additional, Fontaine, Gerard, additional, Frans, Lott, additional, Fuessling, Matthias, additional, Funk, Stefan, additional, Gabici, Stefano, additional, Gallant, Yves, additional, Giavitto, Gianluca, additional, Giunti, Luca, additional, Glawion, Dorit, additional, Glicenstein, Jean-Francois, additional, Grondin, Marie-Hélène, additional, Hattingh, Sumari, additional, Haupt, Maria, additional, HERMANN, German, additional, Hinton, Jim, additional, Hofmann, Werner, additional, Hoischen, Clemens, additional, Holch, Tim, additional, Holler, Markus, additional, Horns, Dieter, additional, Huang, Zhi-Qiu, additional, Huber, David, additional, Hörbe, Mario, additional, Jamrozy, Marek, additional, Jankowsky, Felix, additional, Joshi, Vikas, additional, JUNG, Ira, additional, Kasai, Eli, additional, Katarzynski, Krzysztof, additional, Katz, Ulì, additional, Khangulyan, Dmitry, additional, Khelifi, Bruno, additional, Klepser, Stefan, additional, Kluzniak, Wlodek, additional, Komin, Nukri, additional, Konno, Ruslan, additional, Kosack, Karl, additional, Kostunin, Dmitriy, additional, Kreter, Michael, additional, Kukec Mezek, Gašper, additional, Kundu, Anu, additional, Lamanna, Giovanni, additional, Le Stum, Sebastien, additional, Lemiere, Anne, additional, Lemoine-Goumard, Marianne, additional, Lenain, Jean-Philippe, additional, Leuschner, Fabian, additional, Levy, Christelle, additional, Lohse, Thomas, additional, Luashvili, Anna, additional, Lypova, Iryna, additional, Mackey, Jonathan, additional, Majumdar, Jhilik, additional, Malyshev, Denys, additional, Malyshev, Dmitry, additional, Marandon, Vincent, additional, Marchegiani, Paolo, additional, Marcowith, Alexandre, additional, Mares, Arnaud, additional, Martí-Devesa, Guillem, additional, Marx, Ramin, additional, Maurin, Gilles, additional, Meintjes, Pieter, additional, Meyer, Manuel, additional, Mitchell, Alison, additional, Moderski, Rafal, additional, Mohrmann, Lars, additional, Montanari, Alessandro, additional, Moore, Chris, additional, Morris, Paul, additional, Moulin, Emmanuel, additional, Muller, Jacques, additional, Murach, Thomas, additional, Nakashima, Kaori, additional, Naurois (de), Mathieu, additional, Nayerhoda, Amid, additional, Davids, Hambeleleni, additional, Niemiec, Jacek, additional, O'Brien, Paul, additional, Oberholzer, Laenita Lorraine, additional, Ohm, Stefan, additional, Olivera-Nieto, Laura, additional, Ona-Wilhelmi (de), Emma, additional, Ostrowski, Michal, additional, Panny, Sebastian, additional, Panter, Michael, additional, Parsons, Dan, additional, Peron, Giada, additional, Pita, Santiago, additional, Poireau, Vincent, additional, Prokhorov, Dmitry A, additional, Prokoph, Heike, additional, PUEHLHOFER, Gerd, additional, Punch, Michael, additional, Quirrenbach, Andreas, additional, Reichherzer, Patrick, additional, Reimer, Anita, additional, Reimer, Olaf, additional, Remy, Quentin, additional, Renaud, Matthieu, additional, Reville, Brian, additional, Rieger, Frank, additional, Romoli, Carlo, additional, Rowell, Gavin P, additional, Rudak, Bronislaw, additional, Rueda Ricarte, Hector, additional, Ruiz Velasco, Edna, additional, Sahakian, Vardan, additional, Sailer, Simon, additional, Salzmann, Heiko, additional, Sanchez, David, additional, Santangelo, Andrea, additional, Sasaki, Manami, additional, Schaefer, Johannes, additional, Schutte, Hester, additional, Schwanke, Ullrich, additional, Schüssler, Fabian, additional, Senniappan, Mohanraj, additional, Seyffert, Albert, additional, Shapopi, Jimmy N.S., additional, Shiningayamwe, Kleopas, additional, Simoni, Rachel, additional, Sinha, Atreyee, additional, Sol, Helene, additional, Spackman, Hugh, additional, Specovius, Andreas, additional, Spencer, Samuel Timothy, additional, Spir-Jacob, Marion, additional, Stawarz, Lukasz, additional, Steenkamp, Riaan, additional, Stegmann, Christian, additional, Steinmassl, Simon, additional, Steppa, Constantin, additional, Sun, Lei, additional, Takahashi, Tadayuki, additional, Tanaka, Takaaki, additional, Tavernier, Thomas, additional, Taylor, Andrew, additional, Terrier, Regis, additional, Thiersen, Hannes, additional, Thorpe-Morgan, Charles, additional, Tluczykont, Martin, additional, Tomankova, Lenka, additional, Tsirou, Michelle, additional, Tsuji, Naomi, additional, Tuffs, Richard, additional, Uchiyama, Yasunobu, additional, van der Walt, Johann, additional, van Eldik, Christopher, additional, van Rensburg, Carlo, additional, van Soelen, Brian, additional, Vasileiadis, George, additional, Veh, Johannes, additional, Venter, Christo, additional, Vincent, Pascal, additional, Vink, Jacco, additional, Völk, Heinrich J., additional, Wagner, Stefan, additional, Watson, Jason John, additional, Werner, Felix, additional, White, Richard, additional, Wierzcholska, Alicja, additional, Wong, Yu Wun, additional, Yassin, Hend Mahmoud, additional, Yusafzai, Anke, additional, Zacharias, Michael, additional, Zanin, Roberta, additional, Zargaryan, Davit, additional, Zdziarski, Andrzej, additional, Zech, Andreas, additional, Zhu, Sylvia, additional, Zmija, Andreas, additional, Zouari, Samuel, additional, and Żywucka, Natalia, additional

Published
2021
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14. Science verification of the new FlashCam-based camera in the 28m telescope of H.E.S.S.

Author

Puehlhofer, Gerd, primary, Bernlöhr, Konrad, additional, Bi, Baiyang, additional, HERMANN, German, additional, Hinton, Jim, additional, Jung-Richardt, Ira, additional, Leuschner, Fabian, additional, Marandon, Vincent, additional, Mitchell, Alison, additional, Mohrmann, Lars, additional, Parsons, Robert Daniel, additional, Sailer, Simon, additional, Salzmann, Heiko, additional, Steinmassl, Simon, additional, Werner, Felix, additional, Abdalla, Hassan, additional, Aharonian, Felix, additional, Ait-Benkhali, Faical, additional, Anguener, Oguzhan, additional, Arcaro, Cornelia, additional, Armand, Celine, additional, Armstrong, Tom, additional, Ashkar, Halim, additional, Backes, Michael, additional, Baghmanyan, Vardan, additional, Barbosa Martins, Victor, additional, Barnacka, Anna, additional, Barnard, Monica, additional, Batzofin, Rowan, additional, Becherini, Yvonne, additional, Berge, David, additional, Bernloehr, Konrad, additional, Böttcher, Markus, additional, Boisson, Catherine, additional, Bolmont, Julien, additional, Bony (de), Mathieu, additional, Breuhaus, Mischa, additional, Brose, Robert, additional, Brun, Francois, additional, Bulik, Tomasz, additional, Bylund, Thomas, additional, Cangemi, Floriane, additional, Caroff, Sami, additional, Casanova, Sabrina, additional, Catalano, Jaqueline, additional, Chambery, Pauline, additional, Chand, Tej Bahadur, additional, Chen, Andrew, additional, Cotter, Garret, additional, Curlo, Malgorzata, additional, Dalgleish, Hannah, additional, Damascene Mbarubucyeye, Jean, additional, Davids, Isak Delberth, additional, Davies, James, additional, Devin, Justine, additional, Djannati-Ataï, Arache, additional, Dmytriev, Anton, additional, Donath, Axel, additional, Doroshenko, Victor, additional, Dreyer, Lente, additional, Du Plessis, Louis, additional, Duffy, Connor, additional, Egberts, Kathrin, additional, Einecke, Sabrina, additional, ERNENWEIN, Jean-Pierre, additional, Fegan, Steven, additional, Feijen, Kirsty, additional, Fiasson, Armand, additional, Fichet de Clairfontaine, Gaëtan, additional, Fontaine, Gerard, additional, Frans, Lott, additional, Fuessling, Matthias, additional, Funk, Stefan, additional, Gabici, Stefano, additional, Gallant, Yves, additional, Giavitto, Gianluca, additional, Giunti, Luca, additional, Glawion, Dorit, additional, Glicenstein, Jean-Francois, additional, Grondin, Marie-Hélène, additional, Hattingh, Sumari, additional, Haupt, Maria, additional, Hörbe, Mario, additional, Hofmann, Werner, additional, Hoischen, Clemens, additional, Holch, Tim, additional, Holler, Markus, additional, Horns, Dieter, additional, Huang, Zhi-Qiu, additional, Huber, David, additional, Jamrozy, Marek, additional, Jankowsky, Felix, additional, Joshi, Vikas, additional, Kasai, Eli, additional, Katarzynski, Krzysztof, additional, Katz, Ulì, additional, Khangulyan, Dmitry, additional, Khelifi, Bruno, additional, Klepser, Stefan, additional, Kluzniak, Wlodek, additional, Komin, Nukri, additional, Konno, Ruslan, additional, Kosack, Karl, additional, Kostunin, Dmitriy, additional, Kreter, Michael, additional, Kukec Mezek, Gašper, additional, Kundu, Anu, additional, Lamanna, Giovanni, additional, Le Stum, Sébastien, additional, Lemiere, Anne, additional, Lemoine-Goumard, Marianne, additional, Lenain, Jean-Philippe, additional, Levy, Christelle, additional, Lohse, Thomas, additional, Luashvili, Anna, additional, Lypova, Iryna, additional, Mackey, Jonathan, additional, Majumdar, Jhilik, additional, Malyshev, Denys, additional, Malyshev, Dmitry, additional, Marchegiani, Paolo, additional, Marcowith, Alexandre, additional, Mares, Arnaud, additional, Martí-Devesa, Guillem, additional, Marx, Ramin, additional, Maurin, Gilles, additional, Meintjes, Pieter, additional, Meyer, Manuel, additional, Moderski, Rafal, additional, Montanari, Alessandro, additional, Moore, Chris, additional, Morris, Paul, additional, Moulin, Emmanuel, additional, Muller, Jacques, additional, Murach, Thomas, additional, Nakashima, Kaori, additional, Naurois (de), Mathieu, additional, Nayerhoda, Amid, additional, Davids, Hambeleleni, additional, Niemiec, Jacek, additional, Noel, Angel, additional, O'Brien, Paul, additional, Oberholzer, Laenita Lorraine, additional, Ohm, Stefan, additional, Olivera-Nieto, Laura, additional, Ona-Wilhelmi (de), Emma, additional, Ostrowski, Michal, additional, Panny, Sebastian, additional, Panter, Michael, additional, Parsons, Dan, additional, Peron, Giada, additional, Pita, Santiago, additional, Poireau, Vincent, additional, Prokhorov, Dmitry, additional, Prokoph, Heike, additional, Punch, Michael, additional, Quirrenbach, Andreas, additional, Reichherzer, Patrick, additional, Reimer, Anita, additional, Reimer, Olaf, additional, Remy, Quentin, additional, Renaud, Matthieu, additional, Reville, Brian, additional, Rieger, Frank, additional, Romoli, Carlo, additional, Rowell, Gavin, additional, Rudak, Bronislaw, additional, Rueda Ricarte, Hector, additional, Ruiz Velasco, Edna, additional, Sahakian, Vardan, additional, Sanchez, David, additional, Santangelo, Andrea, additional, Sasaki, Manami, additional, Schaefer, Johannes, additional, Schüssler, Fabian, additional, Schutte, Hester, additional, Schwanke, Ullrich, additional, Senniappan, Mohanraj, additional, Seyffert, Albert, additional, Shapopi, Jimmy N.S., additional, Shiningayamwe, Kleopas, additional, Simoni, Rachel, additional, Sinha, Atreyee, additional, Sol, Helene, additional, Spackman, Hugh, additional, Specovius, Andreas, additional, Spencer, Samuel Timothy, additional, Spir-Jacob, Marion, additional, Stawarz, Lukasz, additional, Steenkamp, Riaan, additional, Stegmann, Christian, additional, Steppa, Constantin, additional, Sun, Lei, additional, Takahashi, Tadayuki, additional, Tanaka, Takaaki, additional, Tavernier, Thomas, additional, Taylor, Andrew, additional, Terrier, Regis, additional, Thiersen, Hannes, additional, Thorpe-Morgan, Charles, additional, Tluczykont, Martin, additional, Tomankova, Lenka, additional, Tsirou, Michelle, additional, Tsuji, Naomi, additional, Tuffs, Richard, additional, Uchiyama, Yasunobu, additional, van der Walt, Johann, additional, van Eldik, Christopher, additional, van Rensburg, Carlo, additional, van Soelen, Brian, additional, Vasileiadis, George, additional, Veh, Johannes, additional, Venter, Christo, additional, Vincent, Pascal, additional, Vink, Jacco, additional, Völk, Heinrich J., additional, Wagner, Stefan, additional, Watson, Jason John, additional, White, Richard, additional, Wierzcholska, Alicja, additional, Wong, Yu Wun, additional, Yassin, Hend Mahmoud, additional, Yusafzai, Anke, additional, Zacharias, Michael, additional, Zanin, Roberta, additional, Zargaryan, Davit, additional, Zdziarski, Andrzej, additional, Zech, Andreas, additional, Zhu, Sylvia, additional, Zmija, Andreas, additional, Zouari, Samuel, additional, and Żywucka, Natalia, additional

Published
2021
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15. Observation of burst activity from SGR1935+2154 associated to first galactic FRB with H.E.S.S

Author

Abdalla, Hassan, Aharonian, Felix, Barbosa Martins, Victor, Lenain, Jean-Philippe, Leuschner, Fabian, Levy, Christelle, Lohse, Thomas, Luashvili, Anna, Lypova, Iryna, Mackey, Jonathan, Majumdar, Jhilik, Malyshev, Denys, Malyshev, Dmitry, Barnacka, Anna, Marandon, Vincent, Marchegiani, Paolo, Marcowith, Alexandre, Mares, Arnaud, Martí-Devesa, Guillem, Marx, Ramin, Maurin, Gilles, Meintjes, Pieter, Meyer, Manuel, Mitchell, Alison, Barnard, Monica, Moderski, Rafal, Mohrmann, Lars, Montanari, Alessandro, Moore, Chris, Morris, Paul, Moulin, Emmanuel, Muller, Jacques, Murach, Thomas, Nakashima, Kaori, Naurois , Mathieu, Batzofin, Rowan, Nayerhoda, Amid, Davids, Hambeleleni, Niemiec, Jacek, Noel, Angel, O'Brien, Paul, Oberholzer, Laenita Lorraine, Ohm, Stefan, Olivera-Nieto, Laura, Ona-Wilhelmi , Emma, Ostrowski, Michal, Becherini, Yvonne, Panny, Sebastian, Panter, Michael, Parsons, Dan, Peron, Giada, Pita, Santiago, Poireau, Vincent, Prokhorov, Dmitry, Prokoph, Heike, PUEHLHOFER, Gerd, Punch, Michael, Berge, David, Quirrenbach, Andreas, Reichherzer, Patrick, Reimer, Anita, Reimer, Olaf, Remy, Quentin, Renaud, Matthieu, Reville, Brian, Rieger, Frank, Romoli, Carlo, Rowell, Gavin, Bernloehr, Konrad, Rudak, Bronislaw, Rueda Ricarte, Hector, Ruiz Velasco, Edna, Sahakian, Vardan, Sailer, Simon, Salzmann, Heiko, Sanchez, David, Santangelo, Andrea, Sasaki, Manami, Schaefer, Johannes, Bi, Baiyang, Schutte, Hester, Schwanke, Ullrich, Schüssler, Fabian, Senniappan, Mohanraj, Seyffert, Albert, Shapopi, Jimmy N. S., Shiningayamwe, Kleopas, Simoni, Rachel, Sinha, Atreyee, Sol, Helene, Böttcher, Markus, Spackman, Hugh, Specovius, Andreas, Spencer, Samuel Timothy, Spir-Jacob, Marion, Stawarz, Lukasz, Steenkamp, Riaan, Stegmann, Christian, Steinmassl, Simon, Steppa, Constantin, Sun, Lei, Boisson, Catherine, Takahashi, Tadayuki, Tanaka, Takaaki, Tavernier, Thomas, Taylor, Andrew, Terrier, Regis, Thiersen, Hannes, Thorpe-Morgan, Charles, Tluczykont, Martin, Tomankova, Lenka, Tsirou, Michelle, Ait-Benkhali, Faical, Bolmont, Julien, Tsuji, Naomi, Tuffs, Richard, Uchiyama, Yasunobu, van der Walt, Johann, van Eldik, Christopher, van Rensburg, Carlo, van Soelen, Brian, Vasileiadis, George, Veh, Johannes, Venter, Christo, Bony , Mathieu, Vincent, Pascal, Vink, Jacco, Völk, Heinrich J., Wagner, Stefan, Watson, Jason John, Werner, Felix, White, Richard, Wierzcholska, Alicja, Wong, Yu Wun, Yassin, Hend Mahmoud, Breuhaus, Mischa, Yusafzai, Anke, Zacharias, Michael, Zanin, Roberta, Zargaryan, Davit, Zdziarski, Andrzej, Zech, Andreas, Zhu, Sylvia, Zmija, Andreas, Zouari, Samuel, Żywucka, Natalia, Brose, Robert, H. E. S. S. Collaboration, Brun, Francois, Bulik, Tomasz, Bylund, Thomas, Cangemi, Floriane, Caroff, Sami, Casanova, Sabrina, Anguener, Oguzhan, Catalano, Jaqueline, Chambery, Pauline, Chand, Tej Bahadur, Chen, Andrew, Cotter, Garret, Curlo, Malgorzata, Dalgleish, Hannah, Damascene Mbarubucyeye, Jean, Davids, Isak Delberth, Davies, James, Arcaro, Cornelia, Devin, Justine, Djannati-Ataï, Arache, Dmytriev, Anton, Donath, Axel, Doroshenko, Victor, Dreyer, Lente, Du Plessis, Louis, Duffy, Connor, Egberts, Kathrin, Einecke, Sabrina, Armand, Celine, ERNENWEIN, Jean-Pierre, Fegan, Steven, Feijen, Kirsty, Fiasson, Armand, Fichet de Clairfontaine, Gaëtan, Fontaine, Gerard, Frans, Lott, Fuessling, Matthias, Funk, Stefan, Gabici, Stefano, Armstrong, Tom, Gallant, Yves, Giavitto, Gianluca, Giunti, Luca, Glawion, Dorit, Glicenstein, Jean-Francois, Grondin, Marie-Hélène, Hattingh, Sumari, Haupt, Maria, HERMANN, German, Hinton, Jim, Ashkar, Halim, Hofmann, Werner, Hoischen, Clemens, Holch, Tim, Holler, Markus, Horns, Dieter, Huang, Zhi-Qiu, Huber, David, Hörbe, Mario, Jamrozy, Marek, Jankowsky, Felix, Backes, Michael, Joshi, Vikas, JUNG, Ira, Kasai, Eli, Katarzynski, Krzysztof, Katz, Ulì, Khangulyan, Dmitry, Khelifi, Bruno, Klepser, Stefan, Kluzniak, Wlodek, Komin, Nukri, Baghmanyan, Vardan, Konno, Ruslan, Kosack, Karl, Kostiunin, Dmitriy, Kreter, Michael, Kukec Mezek, Gašper, Kundu, Anu, Lamanna, Giovanni, Le Stum, Sébastien, Lemiere, Anne, Lemoine-Goumard, Marianne, Naurois , Mathieu, Bony , Mathieu, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, and H.E.S.S.

Subjects
Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Brightness, Astrophysics::High Energy Astrophysical Phenomena, atmosphere [Cherenkov counter], Soft gamma repeater, FOS: Physical sciences, burst [gamma ray], X-ray: burst, Astrophysics, gamma ray: burst, Cherenkov counter: atmosphere, Magnetar, Radio spectrum, Observational evidence, Pulsar, ddc:530, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - High Energy Astrophysical Phenomena, Cherenkov radiation, burst [X-ray]
Abstract

37th International Cosmic Ray Conference, ICRC2021, Berlin, Germany - Online, 12 Jul 2021 - 23 Jul 2021; Proceedings of Science / International School for Advanced Studies (ICRC2021), 777 (2021). doi:10.22323/1.395.0777, Fast radio bursts (FRB) are enigmatic powerful single radio pulses with durations of several milliseconds and high brightness temperatures suggesting coherent emission mechanism. For the time being a number of extragalactic FRBs have been detected in the high-frequency radio band including repeating ones. The most plausible explanation for these phenomena is magnetar hyperflares. The first observational evidence of this scenario was obtained in April 2020 when an FRB was detected from the direction of the Galactic magnetar and soft gamma repeater SGR1935+2154. The FRB was preceded with a number of soft gamma-ray bursts observed by Swift-BAT satellite, which triggered the follow-up program of the H.E.S.S. imaging atmospheric Cherenkov telescopes (IACTs). H.E.S.S. has observed SGR1935+2154 over a 2 hour window few hours prior to the FRB detection by STARE2 and CHIME. The observations overlapped with other X-ray bursts from the magnetar detected by INTEGRAL and Swift-BAT, thus providing first observations of a magnetar in a flaring state in the very-high energy domain. We present the analysis of these observations, discuss the obtained results and prospects of the H.E.S.S. follow-up program for soft gamma repeaters and anomalous X-ray pulsars., Published by SISSA, Trieste

Published
2021
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27. Transient emission of selected CRTS Cataclysmic Variables

Author

Szegedi, Helene, primary, Odendaal, Alida, additional, Meintjes, Pieter, additional, van Soelen, Brian, additional, Marais, Johannes Petrus, additional, Rajoelimanana, Andry, additional, Nyamai, Miriam M, additional, Britto, Richard, additional, Hanlon, Lorraine, additional, Murphy, David, additional, Martin-Carrillo, Antonio, additional, Motsoaledi, Mokhine, additional, and Thorstensen, John R, additional

Published
2018
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30. ThunderKAT: The MeerKAT Large Survey Project for Image-Plane Radio Transients

Author

Woudt, Patrick Alan, primary, Fender, Rob, additional, Corbel, Stephane, additional, Coriat, Mickaël, additional, Daigne, Frédéric, additional, Falcke, Heino, additional, Girard, Julien, additional, Heywood, Ian, additional, Horesh, Assaf, additional, Horrell, Jasper, additional, Jonker, Peter G., additional, Joseph, Tana, additional, Kamble, Atish, additional, Knigge, Christian, additional, Körding, Elmar, additional, Kotze, Marissa, additional, Kouveliotou, Chryssa, additional, Lynch, Christine, additional, Maccarone, Tom, additional, Meintjes, Pieter, additional, Migliari, Simone, additional, Murphy, Tara, additional, Nagayama, Takahiro, additional, Nelemans, Gijs, additional, Nicholson, George, additional, O’Brien, Tim, additional, Oodendaal, Alida, additional, Oozeer, Nadeem, additional, Osborne, Julian, additional, Perez-Torres, Miguel, additional, Ratcliffe, Simon, additional, Ribeiro, Valério A.R.M., additional, Rol, Evert, additional, Rushton, Anthony, additional, Scaife, Anna, additional, Schurch, Matthew, additional, Sivakoff, Greg, additional, Staley, Tim, additional, Steeghs, Danny, additional, Stewart, Ian, additional, Swinbank, John D., additional, Vergani, Susanna, additional, Warner, Brian, additional, Wiersema, Klaas, additional, Armstrong, Richard, additional, Groot, Paul, additional, McBride, Vanessa, additional, Miller-Jones, James C.A., additional, Mooley, Kunal, additional, Stappers, Ben, additional, Wijers, Ralph A.M.J., additional, Bietenholz, Michael, additional, Blyth, Sarah, additional, Böttcher, Markus, additional, Buckley, David, additional, Charles, Phil, additional, Chomiuk, Laura, additional, Coppejans, Deanne, additional, de Blok, W.J.G., additional, van der Heyden, Kurt, additional, van der Horst, Alexander, additional, and van Soelen, Brian, additional

Published
2018
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35. Large Scale Simulations of Astrophysical Jets

Author

Beall, James H., primary, Rose, D.V., additional, Lind, Kevin, additional, Kevin, Lind, additional, Wolff, Michael T., additional, Brian, van Soelen, additional, Izak, van_der_Westhuizen, additional, and Meintjes, Pieter, additional

Published
2017
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