Very high energy γ-ray emission from two blazars of unknown redshift and upper limits on their distance

We report on the detection of very high energy (VHE; E > 100 GeV) γ -ray emission from the BL Lac objects KUV 00311−1938 and PKS 1440−389 with the High Energy Stereoscopic System (H.E.S.S.). H.E.S.S. observations were accompanied or preceded by multiwavelength observations with Fermi/LAT, XRT and...

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Main Authors:	Abdalla, Hassan (Author) , Glawion, Dorit (Author) , Jankowsky, Felix (Author) , Marx, Ramin (Author) , Mohamed, Mahmoud (Author) , Quirrenbach, Andreas (Author) , Schwemmer, Stephanie (Author) , Wagner, Stefan (Author) , Wierzcholska, Alicja (Author)
Corporate Author:	H.E.S.S. Collaboration (Author)
Format:	Article (Journal)
Language:	English
Published:	23 April 2020
In:	Monthly notices of the Royal Astronomical Society Year: 2020, Volume: 494, Issue: 4, Pages: 5590-5602
ISSN:	1365-2966
DOI:	10.1093/mnras/staa999
Online Access:	Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1093/mnras/staa999 Verlag, lizenzpflichtig, Volltext: https://academic.oup.com/mnras/article/494/4/5590/5824174
Author Notes:	H Abdalla, R Adam, F Aharonian, F Ait Benkhali, E O Angüner, M Arakawa, 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, M Böttcher, C Boisson, J Bolmont, S Bonnefoy, J Bregeon, 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, I D Davids, J Davies, C Deil, J Devin, P deWilt, L Dirson, A Djannati-Ataï, A Dmytriiev, A Donath, V Doroshenko, J Dyks, K Egberts, F Eichhorn, G Emery, J -P Ernenwein, K Feijen, S Fegan, A Fiasson, G Fontaine, S Funk, M Füßling, S Gabici, Y A Gallant, G Giavitto, L Giunti, D Glawion, J F Glicenstein, D Gottschall, M -H Grondin, J Hahn, M Haupt, G Hermann, J A Hinton, W Hofmann, C Hoischen, T L Holch, M Holler, M Hörbe, D Horns, D Huber, H Iwasaki, M Jamrozy, D Jankowsky, F Jankowsky, A Jardin-Blicq, V Joshi, I Jung-Richardt, M A Kastendieck, K Katarzyński, M Katsuragawa, 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, E Leser, 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, P J Meintjes, R Moderski, M Mohamed, L Mohrmann, C Moore, P Morris, E Moulin, J Muller, T Murach, S Nakashima, K Nakashima, M de Naurois, H Ndiyavala, F Niederwanger, J Niemiec, L Oakes, P O’Brien, H Odaka, S Ohm, E de Oña Wilhelmi, M Ostrowski, M Panter, R D Parsons, B Peyaud, Q Piel, S Pita, V Poireau, A P Noel, D A Prokhorov, H Prokoph, G Pühlhofer, M Punch, A Quirrenbach, S Raab, R Rauth, 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, S Saito, D A Sanchez, A Santangelo, M Sasaki, M Scalici, F Schüssler, H M Schutte, U Schwanke, S Schwemmer, M Seglar-Arroyo, M Senniappan, A S Seyffert, N Shafi, K Shiningayamwe, R Simoni, A Sinha, H Sol, A Specovius, S Spencer, M Spir-Jacob, Ł Stawarz, R Steenkamp, C Stegmann, C Steppa, T Takahashi, T Tavernier, A M Taylor, R Terrier, D Tiziani, M Tluczykont, L Tomankova, C Trichard, M Tsirou, N Tsuji, R Tuffs, Y Uchiyama, D J van der Walt, C van Eldik, C van Rensburg, B van Soelen, G Vasileiadis, J Veh, C Venter, P Vincent, J Vink, H J Völk, T Vuillaume, Z Wadiasingh, S J Wagner, J Watson, F Werner, R White, A Wierzcholska, R Yang, H Yoneda, M Zacharias, R Zanin, D Zargaryan, A A Zdziarski, A Zech, S J Zhu, J Zorn, N Żywucka, and M Cerruti (H.E.S.S. Collaboration)