Garret Cotter: Publications

How can astrotourism serve the sustainable development goals? The Namibian example

(2021)

Authors:

Hannah Dalgleish, Getachew Mengistie, Michael Backes, Garret Cotter, Eli Kasai

Search for Dark Matter Annihilation Signals from Unidentified Fermi-LAT Objects with H.E.S.S.

The Astrophysical Journal American Astronomical Society 918:1 (2021) 17

Authors:

H Abdalla, F Aharonian, F Ait Benkhali, EO Angüner, C Arcaro, C Armand, T Armstrong, H Ashkar, M Backes, V Baghmanyan, V Barbosa-Martins, A Barnacka, M Barnard, Y Becherini, D Berge, K Bernlöhr, B Bi, M Böttcher, C Boisson, J Bolmont, M de Bony de Lavergne, M Breuhaus, R Brose, F Brun, T Bulik, T Bylund, F Cangemi, S Caroff, S Casanova, P Chambery, J Catalano, T Chand, A Chen, G Cotter, M Curyło, H Dalgleish, J Damascene Mbarubucyeye, ID Davids, J Davies, J Devin, A Djannati-Ataï, A Dmytriiev, A Donath, V Doroshenko, L Dreyer, L du Plessis, C Duffy, K Egberts, S Einecke, G Emery, J-P Ernenwein, K Feijen, S Fegan, A Fiasson, G Fichet de Clairfontaine, G Fontaine, S Funk, M Füssling, S Gabici, YA Gallant, S Ghafourizade, G Giavitto, L Giunti, D Glawion, JF Glicenstein, M-H Grondin, S Hattingh, M Haupt, G Hermann, JA Hinton, W Hofmann, C Hoischen, TL Holch, M Holler, M Hörbe, D Horns, Z Huang, D Huber, M Jamrozy, D Jankowsky, F Jankowsky, V Joshi, I Jung-Richardt, E Kasai, K Katarzyński, U Katz, D Khangulyan, B Khélifi, S Klepser, W Kluźniak, Nu Komin, R Konno, K Kosack, D Kostunin, M Kreter, G Kukec Mezek, A Kundu, G Lamanna, S Le Stum, A Lemière, M Lemoine-Goumard, J-P Lenain, F Leuschner, C Levy, A Luashvili, T Lohse, I Lypova, J Mackey, J Majumdar, D Malyshev, D Malyshev, V Marandon, P Marchegiani, A Marcowith, A Mares, G Martí-Devesa, R Marx, G Maurin, PJ Meintjes, M Meyer, A Mitchell, R Moderski, L Mohrmann, A Montanari, C Moore, P Morris, E Moulin, J Muller, T Murach, K Nakashima, A Nayerhoda, M de Naurois, H Ndiyavala, J Niemiec, A Noel, L Oberholzer, P O’Brien, S Ohm, L Olivera-Nieto, E de Ona Wilhelmi, M Ostrowski, M Panter, S Panny, RD Parsons, G Peron, S Pita, V Poireau, DA Prokhorov, H Prokoph, G Pühlhofer, M Punch, A Quirrenbach, P Reichherzer, A Reimer, O Reimer, Q Remy, M Renaud, F Rieger, C Romoli, G Rowell, B Rudak, H Rueda Ricarte, E Ruiz-Velasco, V Sahakian, S Sailer, H Salzmann, DA Sanchez, A Santangelo, M Sasaki, J Schäfer, F Schüssler, HM Schutte, U Schwanke, M Senniappan, AS Seyffert, JNS Shapopi, K Shiningayamwe, R Simoni, A Sinha, H Spackman, H Sol, A Specovius, S Spencer, M Spir-Jacob, Ł Stawarz, L Sun, R Steenkamp, C Stegmann, S Steinmassl, C Steppa, T Takahashi, T Tanaka, T Tavernier, AM Taylor, R Terrier, C Thorpe-Morgan, JHE Thiersen, M Tluczykont, L Tomankova, M Tsirou, M Tsuji, R Tuffs, Y Uchiyama, DJ van der Walt, C van Eldik, C van Rensburg, B van Soelen, G Vasileiadis, J Veh, C Venter, P Vincent, A Viana, J Vink, HJ Völk, SJ Wagner, F Werner, R White, A Wierzcholska, Yu Wun Wong, H Yassin, A Yusafzai, M Zacharias, R Zanin, D Zargaryan, AA Zdziarski, A Zech, SJ Zhu, A Zmija, J Zorn, S Zouari, N Żywucka

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Evidence of 100 TeV γ-ray emission from HESS J1702-420: A new PeVatron candidate

Astronomy & Astrophysics EDP Sciences 653 (2021) a152

Authors:

H Abdalla, F Aharonian, F Ait Benkhali, EO Angüner, C Arcaro, C Armand, T Armstrong, H Ashkar, M Backes, V Baghmanyan, V Barbosa Martins, A Barnacka, M Barnard, Y Becherini, D Berge, K Bernlöhr, B Bi, M Böttcher, C Boisson, J Bolmont, M de Bony de Lavergne, M Breuhaus, F Brun, P Brun, M Bryan, M Büchele, T Bulik, T Bylund, S Caroff, A Carosi, S Casanova, T Chand, S Chandra, A Chen, G Cotter, M Curyło, J Damascene Mbarubucyeye, ID Davids, J Davies, C Deil, J Devin, L Dirson, A Djannati-Ataï, A Dmytriiev, A Donath, V Doroshenko, L Dreyer, C Duffy, J Dyks, K Egberts, F Eichhorn, S Einecke, G Emery, J-P Ernenwein, K Feijen, S Fegan, A Fiasson, G Fichet de Clairfontaine, G Fontaine, S Funk, M Füßling, S Gabici, YA Gallant, G Giavitto, L Giunti, D Glawion, JF Glicenstein, M-H Grondin, J Hahn, M Haupt, G Hermann, JA Hinton, W Hofmann, C Hoischen, TL Holch, M Holler, M Hörbe, D Horns, D Huber, M Jamrozy, D Jankowsky, F Jankowsky, A Jardin-Blicq, V Joshi, I Jung-Richardt, E Kasai, MA Kastendieck, K Katarzyński, U Katz, D Khangulyan, B Khélifi, S Klepser, W Kluźniak, Nu Komin, R Konno, K Kosack, D Kostunin, M Kreter, G Lamanna, A Lemière, M Lemoine-Goumard, J-P Lenain, F Leuschner, C Levy, T Lohse, I Lypova, J Mackey, J Majumdar, D Malyshev, D Malyshev, V Marandon, P Marchegiani, A Marcowith, A Mares, G Martí-Devesa, R Marx, G Maurin, PJ Meintjes, M Meyer, A Mitchell, R Moderski, L Mohrmann, A Montanari, C Moore, P Morris, E Moulin, J Muller, T Murach, K Nakashima, A Nayerhoda, M de Naurois, H Ndiyavala, J Niemiec, L Oakes, P O’Brien, H Odaka, S Ohm, L Olivera-Nieto, E de Ona Wilhelmi, M Ostrowski, S Panny, M Panter, RD Parsons, G Peron, B Peyaud, Q Piel, S Pita, V Poireau, A Priyana Noel, DA Prokhorov, H Prokoph, G Pühlhofer, M Punch, A Quirrenbach, S Raab, R Rauth, P Reichherzer, A Reimer, O Reimer, Q Remy, M Renaud, F Rieger, L Rinchiuso, C Romoli, G Rowell, B Rudak, E Ruiz-Velasco, V Sahakian, S Sailer, H Salzmann, DA Sanchez, A Santangelo, M Sasaki, M Scalici, J Schäfer, F Schüssler, HM Schutte, U Schwanke, M Seglar-Arroyo, M Senniappan, AS Seyffert, N Shafi, JNS Shapopi, K Shiningayamwe, R Simoni, A Sinha, H Sol, A Specovius, S Spencer, M Spir-Jacob, Ł Stawarz, L Sun, R Steenkamp, C Stegmann, S Steinmassl, C Steppa, T Takahashi, T Tavernier, AM Taylor, R Terrier, JHE Thiersen, D Tiziani, M Tluczykont, L Tomankova, C Trichard, M Tsirou, R Tuffs, Y Uchiyama, DJ van der Walt, C van Eldik, C van Rensburg, B van Soelen, G Vasileiadis, J Veh, C Venter, P Vincent, J Vink, HJ Völk, Z Wadiasingh, SJ Wagner, J Watson, F Werner, R White, A Wierzcholska, Yu Wun Wong, A Yusafzai, M Zacharias, R Zanin, D Zargaryan, AA Zdziarski, A Zech, SJ Zhu, J Zorn, S Zouari, N Żywucka, F Acero

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Southern African Large Telescope Spectroscopy of BL Lacs for the CTA project

(2021)

Authors:

E Kasai, P Goldoni, M Backes, G Cotter, S Pita, C Boisson, DA Williams, F D'Ammando, E Lindfors, U Barres de Almeida, W Max-Moerbeck, V Navarro-Aranguiz, J Becerra-Gonzalez, O Hervet, J-P Lenain, H Sol, S Wagner

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TeV emission of galactic plane sources with HAWC and H.E.S.S.

Astrophysical Journal IOP Publishing 917:1 (2021) 6

Authors:

H Abdalla, F Aharonian, F Ait Benkhali, Thomas Armstrong, G Cotter, J Davies

Abstract:

The High Altitude Water Cherenkov (HAWC) observatory and the High Energy Stereoscopic System (H.E.S.S.) are two leading instruments in the ground-based very-high-energy γ-ray domain. HAWC employs the water Cherenkov detection (WCD) technique, while H.E.S.S. is an array of Imaging Atmospheric Cherenkov Telescopes (IACTs). The two facilities therefore differ in multiple aspects, including their observation strategy, the size of their field of view, and their angular resolution, leading to different analysis approaches. Until now, it has been unclear if the results of observations by both types of instruments are consistent: several of the recently discovered HAWC sources have been followed up by IACTs, resulting in a confirmed detection only in a minority of cases. With this paper, we go further and try to resolve the tensions between previous results by performing a new analysis of the H.E.S.S. Galactic plane survey data, applying an analysis technique comparable between H.E.S.S. and HAWC. Events above 1 TeV are selected for both data sets, the point-spread function of H.E.S.S. is broadened to approach that of HAWC, and a similar background estimation method is used. This is the first detailed comparison of the Galactic plane observed by both instruments. H.E.S.S. can confirm the γ-ray emission of four HAWC sources among seven previously undetected by IACTs, while the three others have measured fluxes below the sensitivity of the H.E.S.S. data set. Remaining differences in the overall γ-ray flux can be explained by the systematic uncertainties. Therefore, we confirm a consistent view of the γ-ray sky between WCD and IACT techniques.

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Garret Cotter

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How can astrotourism serve the sustainable development goals? The Namibian example

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Search for Dark Matter Annihilation Signals from Unidentified Fermi-LAT Objects with H.E.S.S.

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Evidence of 100 TeV γ-ray emission from HESS J1702-420: A new PeVatron candidate

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Southern African Large Telescope Spectroscopy of BL Lacs for the CTA project

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TeV emission of galactic plane sources with HAWC and H.E.S.S.

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Garret Cotter

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How can astrotourism serve the sustainable development goals? The Namibian example

Authors:

Search for Dark Matter Annihilation Signals from Unidentified Fermi-LAT Objects with H.E.S.S.

Authors:

Evidence of 100 TeV γ-ray emission from HESS J1702-420: A new PeVatron candidate

Authors:

Southern African Large Telescope Spectroscopy of BL Lacs for the CTA project

Authors:

TeV emission of galactic plane sources with HAWC and H.E.S.S.

Authors:

Abstract: