Autor: Veh, J. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: TeV flaring activity of the AGN PKS 0625–354 in November 2018
Autorzy:: Schüssler, F.
Holch, T. L.
Batzofin, R.
Mehta, A.
Holler, M.
Niemiec, J.
Barnard, J.
Fontaine, G.
Wierzcholska, A.
Lenain, J.-P.
Aharonian, F.
Kostunin, D.
Lang, R. G.
de Ona Wilhelmi, E.
Ren, H.
Streil, K.
Giavitto, G.
Caroff, S.
Ohm, S.
Glawion, D.
O’Brien, P.
Khatoon, R.
Kasai, E.
Sanchez, D. A.
Takahashi, T.
Sasaki, M.
Leitl, F.
Spencer, S.
Barbosa Martins, V.
Ait Benkhali, F.
Punch, M.
Brose, R.
Reimer, O.
Boisson, C.
Casanova, S.
Bradascio, F.
Katarzyński, K.
Venter, C.
Chibueze, O.
Kluźniak, W.
Bernlöhr, K.
Bulik, T.
Böttcher, M.
Brun, F.
Panny, S.
Cerruti, M.
Veh, J.
van Eldik, C.
Borowska, J.
Schutte, H. M.
Stawarz, Łukasz
Hinton, J. A.
Salzmann, H.
Bylund, T.
Rudak, B.
Bolmont, J.
Reimer, A.
Joshi, V.
Bi, B.
de Naurois, M.
Suzuki, H.
Moulin, E.
Kosack, K.
Wagner, S. J.
Zargaryan, D.
Chand, T.
Mitchell, A.
Gabici, S.
Funk, S.
Chen, A.
Baktash, A.
Steinmassl, S.
Olivera-Nieto, L.
Breuhaus, M.
Dmytriiev, A.
Chandra, S.
Davids, I. D.
Ernenwein, J.-P.
Ostrowski, Michał
Doroshenko, V.
Khélifi, B.
Le Stum, S.
Jamrozy, Marek
Shapopi, J. N. S.
Cotter, G.
Mackey, J.
Moderski, R.
Leuschner, F.
Ghafourizadeh, S.
Einecke, S.
Becherini, Y.
Quirrenbach, A.
Cecil, R.
Aschersleben, J.
Specovius, A.
Tanaka, T.
Damascene Mbarubucyeye, J.
Meyer, M.
Jung-Richardt, I.
Chibueze, J.
Bruno, B.
Haerer, L.
Backes, M.
Prokhorov, D. A.
Djuvsland, J.
Vecchi, M.
Żywucka, N.
Horns, D.
Grolleron, G.
Marx, R.
Glicenstein, J. F.
Reichherzer, P.
Zouari, S.
Goswami, P.
Rieger, F.
Berge, D.
Lemière, A.
Parsons, R. D.
Pühlhofer, G.
Celic, J.
Brown, A.
Ashkar, H.
de Bony de Lavergne, M.
Luashvili, A.
Egberts, K.
Sol, H.
Montanari, A.
Sushch, I.
Jankowsky, F.
Burger-Scheidlin, C.
Glombitza, J.
Füßling, M.
Pita, S.
Sahakian, V.
Zdziarski, A. A.
Zech, A.
Steenkamp, R.
Zacharias, M.
Komin, Nu.
Opis:: Most γ-ray detected active galactic nuclei are blazars with one of their relativistic jets pointing towards the Earth. Only a few objects belong to the class of radio galaxies or misaligned blazars. Here, we investigate the nature of the object PKS 0625−354, its γ-ray flux and spectral variability and its broad-band spectral emission with observations from H.E.S.S., Fermi-LAT, Swift-XRT, and UVOT taken in November 2018. The H.E.S.S. light curve above 200 GeV shows an outburst in the first night of observations followed by a declining flux with a halving time scale of 5.9 h. The γγ-opacity constrains the upper limit of the angle between the jet and the line of sight to ∼10°. The broad-band spectral energy distribution shows two humps and can be well fitted with a single-zone synchrotron self Compton emission model. We conclude that PKS 0625−354, as an object showing clear features of both blazars and radio galaxies, can be classified as an intermediate active galactic nuclei. Multi-wavelength studies of such intermediate objects exhibiting features of both blazars and radio galaxies are sparse but crucial for the understanding of the broad-band emission of γ-ray detected active galactic nuclei in general.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 2.

Tytuł:: Search for dark matter annihilation signals in the H.E.S.S. Inner Galaxy Survey
Autorzy:: de Clairfontaine, G. Fichet
Holler, M.
Funk, S.
Renaud, M.
Baghmanyan, V.
Katz, U.
Senniappan, M.
Zargaryan, D.
Komin, Nu.
Ruiz-Velasco, E.
Cerruti, M.
de Lavergne, M. de Bony
Armand, C.
Noel, Angel
Reimer, A.
Egberts, K.
White, R.
Fontaine, G.
Chen, A.
Gabici, S.
Kluźniak, W.
Kostunin, D.
Montanari, A.
Żywucka, N.
Bi, B.
Lamanna, G.
Lemoine-Goumard, M.
Moulin, E.
de Naurois, M.
Lohse, T.
Leuschner, F.
Malyshev, D.
Veh, J.
Zech, A.
Steinmassl, S.
Böttcher, M.
Chand, T.
Giavitto, G.
Khélifi, B.
Angüner, E. O.
Batzofin, R.
Meyer, M.
Moderski, R.
Schwanke, U.
Lypova, I.
Santangelo, A.
Fiasson, A.
Brose, R.
Specovius, A.
Jamrozy, Marek
Tsuji, N.
Devin, J.
Thorpe-Morgan, C.
Ohm, S.
Bernlöhr, K.
Lenain, J. -P.
Huang, Zhiqiu
Becherini, Y.
Doroshenko, V.
Kosack, K.
Ricarte, H. Rueda
Spencer, S.
Holch, T. L.
Takahashi, T.
Berge, D.
Wagner, S. J.
Marchegiani, P.
Marx, R.
Ashkar, H.
Peron, G.
Prokoph, H.
Parsons, R. D.
Punch, M.
Tsirou, M.
Horns, D.
Uchiyama, Y.
Cangemi, F.
Zacharias, M.
Djannati-Ataï, A.
Niemiec, J.
Mitchell, A.
Panter, M.
Salzmann, H.
Kasai, E.
Wierzcholska, Alicja
Olivera-Nieto, L.
Rudak, B.
Abdalla, H.
Stawarz, Łukasz
Grondin, M. -H.
Glawion, D.
Hofmann, W.
Panny, S.
Brun, F.
Cotter, G.
Marandon, V.
Mackey, J.
Luashvili, A.
Tanaka, T.
Wong, Yu Wun
Katarzyński, K.
Zouari, S.
Dmytriiev, A.
Shapopi, J. N. S.
Aharonian, F.
van Eldik, C.
Glicenstein, J. F.
Terrier, R.
Muller, J.
Bolmont, J.
Sasaki, M.
Stegmann, C.
Maurin, G.
Reimer, O.
Wilhelmi, E. de Ona
Steppa, C.
Reichherzer, P.
Martins, V. Barbosa
Sahakian, V.
Rowell, G.
Hinton, J. A.
Ostrowski, Michał
Zhu, S. J.
Pühlhofer, G.
Quirrenbach, A.
Backes, M.
Schüssler, F.
Schutte, H. M.
Zdziarski, A. A.
Tluczykont, M.
Jankowsky, F.
Vink, J.
Caroff, S.
Martí-Devesa, G.
Mbarubucyeye, J. Damascene
Sol, H.
Rieger, F.
Poireau, V.
Benkhali, F. Ait
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 3.

Tytuł:: Constraints on the Intergalactic Magnetic Field using Fermi-LAT and H.E.S.S. Blazar Observations
Autorzy:: Mitchell, A.
Takahashi, T.
Glicenstein, J. F.
Thorpe-Morgan, C.
de Bony, M.
Chibueze, O.
Marx, R.
Funk, S.
Schwanke, U.
Martí-Devesa, G.
Marcowith, A.
de Ona Wilhelmi, E.
Backes, M.
Aharonian, F.
Quirrenbach, A.
Lenain, J. -P.
Lang, R. G.
Ohm, S.
Steinmassl, S.
Mohrmann, L.
Goswami, P.
Malyshev, D.
Venter, C.
Le Stum, S.
Lemière, A.
Kluźniak, W.
Tanaka, T.
Füssling, M.
Jamrozy, Marek
Panter, M.
Jankowsky, F.
Bylund, T.
Wong, Yu Wun
Reimer, A.
Reichherzer, P.
Egberts, K.
Murach, T.
Burger-Scheidlin, C.
White, R.
Leuschner, F.
Chen, A.
Ghafourizadeh, S.
Leitl, F.
Schüssler, F.
Martins, V. Barbosa
Bulik, T.
Sanchez, D. A.
Marchegiani, P.
Breuhaus, M.
Pühlhofer, G.
Aschersleben, J.
Wagner, S. J.
Joshi, V.
Zdziarski, A. A.
Terrier, R.
Uchiyama, Y.
Sasaki, M.
Jung-Richardt, I.
Ruiz-Velasco, E.
Panny, S.
Niemiec, J.
Peron, G.
Bouyahiaoui, M.
Muller, J.
Grondin, M. -H.
Marandon, V.
Rudak, B.
Taylor, A. M.
Holch, T. L.
Horns, D.
Kosack, K.
Montanari, A.
Katarzyński, K.
Sol, H.
Wierzcholska, Alicja
Glawion, D.
Meyer, M.
Celic, J.
Lohse, T.
Brun, F.
Reville, B.
Fontaine, G.
Chandra, S.
Caroff, S.
Zargaryan, D.
Brose, R.
Gabici, S.
Sahakian, V.
Spencer, S.
Lypova, I.
Kostunin, D.
Berge, D.
Mackey, J.
Khatoon, R.
Kasai, E.
Rowell, G.
Suzuki, H.
Punch, M.
Parsons, R. D.
Tsuji, N.
Veh, J.
Ernenwein, J. -P.
Cotter, G.
Giavitto, G.
Prokhorov, D. A.
Prokoph, H.
Żywucka, N.
Chand, T.
Tsirou, M.
Casanova, S.
Reimer, O.
Haerer, L.
Fichet de Clairfontaine, G.
Nakashima, K.
Rieger, F.
Moulin, E.
Shapopi, J. N. S.
Becherini, Y.
Batzofin, R.
van Eldik, C.
Zacharias, M.
Khélifi, B.
Holler, M.
Bi, B.
Luashvili, A.
Bruno, B.
Cerruti, M.
Filipovic, M.
Zouari, S.
Chibueze, J.
Komin, Nu.
Moderski, R.
Olivera-Nieto, L.
Schutte, H. M.
Opis:: Magnetic fields in galaxies and galaxy clusters are believed to be the result of the amplification of intergalactic seed fields during the formation of large-scale structures in the universe. However, the origin, strength, and morphology of this intergalactic magnetic field (IGMF) remain unknown. Lower limits on (or indirect detection of) the IGMF can be obtained from observations of high-energy gamma rays from distant blazars. Gamma rays interact with the extragalactic background light to produce electron−positron pairs, which can subsequently initiate electromagnetic cascades. The gamma-ray signature of the cascade depends on the IGMF since it deflects the pairs. Here we report on a new search for this cascade emission using a combined data set from the Fermi Large Area Telescope and the High Energy Stereoscopic System. Using state-of-the-art Monte Carlo predictions for the cascade signal, our results place a lower limit on the IGMF of B > 7.1 × 10$^{-16}$ G for a coherence length of 1 Mpc even when blazar duty cycles as short as 10 yr are assumed. This improves on previous lower limits by a factor of 2. For longer duty cycles of 10$^{4}$ (10$^{7}$) yr, IGMF strengths below 1.8 × 10$^{-14}$ G (3.9 × 10$^{-14}$ G) are excluded, which rules out specific models for IGMF generation in the early universe.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 4.

Tytuł:: Unveiling extended gamma-ray emission around HESS J1813-178
Autorzy:: Holler, M.
Funk, S.
Renaud, M.
Cecil, R.
Reville, B.
Barnard, J.
Zargaryan, D.
Komin, Nu.
Bulik, T.
Cerruti, M.
Gallant, Y. A.
Noel, Angel
Reimer, A.
Fontaine, G.
Chen, A.
Steenkamp, R.
Mehta, A.
Gabici, S.
Kluźniak, W.
Kostunin, D.
Montanari, A.
Żywucka, N.
Venter, C.
Bi, B.
Lenain, J.-P.
Lemoine-Goumard, M.
Moulin, E.
de Naurois, M.
Leuschner, F.
Wach, T.
Aschersleben, J.
Sushch, I.
Malyshev, D.
Veh, J.
Steinmassl, S.
Suzuki, H.
Goswami, P.
Böttcher, M.
Chand, T.
Giavitto, G.
Einecke, S.
de Ona Wilhelmi, E.
Joshi, V.
Barbosa Martins, V.
Khélifi, B.
Wierzcholska, A.
Ghafourizadeh, S.
Batzofin, R.
Damascene Mbarubucyeye, J.
Moderski, R.
O’Brien, P.
Brose, R.
Bouyahiaoui, M.
Baktash, A.
Jamrozy, Marek
Murach, T.
Specovius, A.
Tsuji, N.
Ohm, S.
Bernlöhr, K.
Becherini, Y.
Leitl, F.
Regeard, M.
Doroshenko, V.
Chibueze, O.
Le Stum, S.
Kosack, K.
Spencer, S.
Holch, T. L.
Takahashi, T.
Berge, D.
Wagner, S. J.
Ren, H.
Marx, R.
Borowska, J.
Ashkar, H.
Parsons, R. D.
Punch, M.
Boisson, C.
Kundu, A.
Roellinghoff, G.
Zacharias, M.
Djannati-Ataï, A.
Niemiec, J.
Mitchell, A.
Panter, M.
Salzmann, H.
Olivera-Nieto, L.
Rudak, B.
Glawion, D.
Hofmann, W.
Marinos, P.
Panny, S.
Füßling, M.
Brun, F.
Cotter, G.
Filipovic, M.
Marandon, V.
Chambery, P.
Breuhaus, M.
Mackey, J.
de Bony de Lavergne, M.
Tanaka, T.
Katarzyński, K.
Zouari, S.
Dmytriiev, A.
Shapopi, J. N. S.
Aharonian, F.
van Eldik, C.
Chibueze, J.
Burger-Scheidlin, C.
Glicenstein, J. F.
Terrier, R.
Feijen, K.
Bolmont, J.
Sasaki, M.
Lang, R. G.
Reimer, O.
Steppa, C.
Lemière, A.
Unbehaun, T.
Reichherzer, P.
Bruno, B.
Ait Benkhali, F.
Sahakian, V.
Ernenwein, J.-P.
Hinton, J. A.
Grondin, M.-H.
Ostrowski, Michał
Vecchi, M.
Casanova, S.
Jung-Richardt, I.
Pühlhofer, G.
Quirrenbach, A.
Prokhorov, D. A.
Backes, M.
Schüssler, F.
Schutte, H. M.
Zdziarski, A. A.
Tluczykont, M.
Grolleron, G.
Jankowsky, F.
Celic, J.
Vink, J.
Klepser, S.
Caroff, S.
Martí-Devesa, G.
Rieger, F.
Mohrmann, L.
Khatoon, R.
Opis:: Context. HESS J1813–178 is a very-high-energy γ-ray source spatially coincident with the young and energetic pulsar PSR J1813–1749 and thought to be associated with its pulsar wind nebula (PWN). Recently, evidence for extended high-energy emission in the vicinity of the pulsar has been revealed in the Fermi Large Area Telescope (LAT) data. This motivates revisiting the HESS J1813–178 region, taking advantage of improved analysis methods and an extended dataset. Aims. Using data taken by the High Energy Stereoscopic System (H.E.S.S.) experiment and the Fermi-LAT, we aim to describe the γ-ray emission in the region with a consistent model, to provide insights into its origin. Methods. We performed a likelihood-based analysis on 32 hours of H.E.S.S. data and 12 yr of Fermi-LAT data and we fitted a spectro-morphological model to the combined datasets. These results allowed us to develop a physical model for the origin of the observed γ-ray emission in the region. Results. In addition to the compact very-high-energy γ-ray emission centred on the pulsar, we find a significant yet previously undetected component along the Galactic plane. With Fermi-LAT data, we confirm extended high-energy emission consistent with the position and elongation of the extended emission observed with H.E.S.S. These results establish a consistent description of the emission in the region from GeV energies to several tens of TeV. Conclusions. This study suggests that HESS J1813–178 is associated with a γ-ray PWN powered by PSR J1813–1749. A possible origin of the extended emission component is inverse Compton emission from electrons and positrons that have escaped the confines of the pulsar and form a halo around the PWN.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 5.

Tytuł:: HESS J1809−193 : a halo of escaped electrons around a pulsar wind nebula?
Autorzy:: Holler, M.
Funk, S.
Renaud, M.
Reville, B.
Zargaryan, D.
Komin, Nu.
Bulik, T.
Marcowith, A.
Cerruti, M.
Gallant, Y. A.
Noel, Angel
Reimer, A.
White, R.
Fontaine, G.
Chen, A.
Steenkamp, R.
Gabici, S.
Kluźniak, W.
Kostunin, D.
Montanari, A.
Żywucka, N.
Venter, C.
Lemoine-Goumard, M.
Moulin, E.
de Naurois, M.
Lohse, T.
Leuschner, F.
Wach, T.
Aschersleben, J.
Sushch, I.
Malyshev, D.
Veh, J.
Zech, A.
Steinmassl, S.
Suzuki, H.
Goswami, P.
Böttcher, M.
Chand, T.
Giavitto, G.
Einecke, S.
de Ona Wilhelmi, E.
Joshi, V.
Barbosa Martins, V.
Khélifi, B.
Ghafourizadeh, S.
Batzofin, R.
Damascene Mbarubucyeye, J.
Moderski, R.
Lypova, I.
Santangelo, A.
Schwanke, U.
Brose, R.
Bouyahiaoui, M.
Jamrozy, Marek
Specovius, A.
Tsuji, N.
Thorpe-Morgan, C.
Ohm, S.
Lenain, J. -P.
Huang, Zhiqiu
Becherini, Y.
Leitl, F.
Chibueze, O.
Ernenwein, J. -P.
Le Stum, S.
Kosack, K.
Spencer, S.
Holch, T. L.
Takahashi, T.
Bylund, T.
Berge, D.
Wagner, S. J.
Marchegiani, P.
Marx, R.
Borowska, J.
Ashkar, H.
Tsirou, M.
Parsons, R. D.
Punch, M.
Horns, D.
Uchiyama, Y.
Boisson, C.
Zacharias, M.
Bradascio, F.
Djannati-Ataï, A.
Niemiec, J.
Giunti, L.
Mitchell, A.
Panter, M.
Kasai, E.
Wierzcholska, Alicja
Olivera-Nieto, L.
Rudak, B.
Stawarz, Łukasz
Grondin, M. -H.
Glawion, D.
Hofmann, W.
Marinos, P.
Panny, S.
Füßling, M.
Brun, F.
Filipovic, M.
Marandon, V.
Chambery, P.
Breuhaus, M.
Mackey, J.
Luashvili, A.
Tanaka, T.
Wong, Yu Wun
Katarzyński, K.
Zouari, S.
Dmytriiev, A.
Shapopi, J. N. S.
Aharonian, F.
van Eldik, C.
Chibueze, J.
Burger-Scheidlin, C.
Terrier, R.
Muller, J.
Feijen, K.
Bolmont, J.
Sasaki, M.
Lang, R. G.
Reimer, O.
Nakashima, K.
Lemière, A.
Reichherzer, P.
Bruno, B.
Ait Benkhali, F.
Sahakian, V.
Rowell, G.
Hinton, J. A.
Ostrowski, Michał
Vecchi, M.
Casanova, S.
Jung-Richardt, I.
Pühlhofer, G.
Quirrenbach, A.
Prokhorov, D. A.
Backes, M.
Schutte, H. M.
Zdziarski, A. A.
Grolleron, G.
Jankowsky, F.
Celic, J.
Vink, J.
Caroff, S.
Martí-Devesa, G.
Sol, H.
Rieger, F.
Haerer, L.
Mohrmann, L.
Opis:: Context. HESS J1809−193 is an unassociated very-high-energy γ-ray source located on the Galactic plane. While it has been connected to the nebula of the energetic pulsar PSR J1809−1917, supernova remnants and molecular clouds present in the vicinity also constitute possible associations. Recently, the detection of γ-ray emission up to energies of ∼100 TeV with the HAWC observatory has led to renewed interest in HESS J1809−193. Aims. We aim to understand the origin of the γ-ray emission of HESS J1809−193. Methods. We analysed 93.2 h of data taken on HESS J1809−193 above 0.27 TeV with the High Energy Stereoscopic System (H.E.S.S.), using a multi-component, three-dimensional likelihood analysis. In addition, we provide a new analysis of 12.5 yr of Fermi-LAT data above 1 GeV within the region of HESS J1809−193. The obtained results are interpreted in a time-dependent modelling framework. Results. For the first time, we were able to resolve the emission detected with H.E.S.S. into two components: an extended component (modelled as an elongated Gaussian with a 1-σ semi-major and semi-minor axis of ∼0.62° and ∼0.35°, respectively) that exhibits a spectral cutoff at ∼13 TeV, and a compact component (modelled as a symmetric Gaussian with a 1-σ radius of ∼0.1°) that is located close to PSR J1809−1917 and shows no clear spectral cutoff. The Fermi-LAT analysis also revealed extended γ-ray emission, on scales similar to that of the extended H.E.S.S. component. Conclusions. Our modelling indicates that based on its spectrum and spatial extent, the extended H.E.S.S. component is likely caused by inverse Compton emission from old electrons that form a halo around the pulsar wind nebula. The compact component could be connected to either the pulsar wind nebula or the supernova remnant and molecular clouds. Due to its comparatively steep spectrum, modelling the Fermi-LAT emission together with the H.E.S.S. components is not straightforward.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 6.

Tytuł:: Search for the evaporation of primordial black holes with H.E.S.S.
Autorzy:: Bi, B.
Jamrozy, Marek
Ghafourizadeh, S.
Berge, D.
Fiasson, A.
Steinmassl, S.
Jung-Richardt, I.
Grondin, M. -H.
Spencer, S.
Zdziarski, A. A.
de Naurois, M.
Barbosa Martins, V.
Mitchell, A.
Fichet de Clairfontaine, G.
Borowska, J.
Bulik, T.
O'Brien, P.
Glicenstein, J. F.
Moderski, R.
Füßling, M.
Zargaryan, D.
Malyshev, D.
Zouari, S.
Fontaine, G.
Zech, A.
Reichherzer, P.
Bradascio, F.
Sushch, I.
Leitl, F.
Noel, Angel
Jankowsky, F.
Cerruti, M.
Batzofin, R.
Marinos, P.
Sol, H.
Rudak, B.
Venter, C.
Caroff, S.
de Ona Wilhelmi, E.
Rueda Ricarte, H.
Kosack, K.
Lohse, T.
Schwanke, U.
Brose, R.
Quirrenbach, A.
Tanaka, T.
Leuschner, F.
Horns, D.
Pühlhofer, G.
Burger-Scheidlin, C.
Holler, M.
Kasai, E.
Lypova, I.
Prokhorov, D. A.
Backes, M.
Martí-Devesa, G.
Veh, J.
Sahakian, V.
Becherini, Y.
Kluźniak, W.
Lemière, A.
Ostrowski, Michał
Ait Benkhali, F.
Lenain, J. -P.
Haupt, M.
Suzuki, H.
Kostunin, D.
Haerer, L.
Nakashima, K.
Shapopi, J. N. S.
de Bony de Lavergne, M.
Khélifi, B.
Katarzyński, K.
Żywucka, N.
Aharonian, F.
Glawion, D.
Takahashi, T.
Gabici, S.
Chen, A.
Sanchez, D. A.
Giavitto, G.
Zacharias, M.
Ohm, S.
Mohrmann, L.
Marx, R.
Panter, M.
Wierzcholska, Alicja
Muller, J.
Bolmont, J.
Huang, Z. -Q.
Specovius, A.
White, R.
Prokoph, H.
Hofmann, W.
Mackey, J.
Holch, T. L.
Rieger, F.
Olivera-Nieto, L.
Salzmann, H.
Casanova, S.
Chibueze, O.
Djannati-Ataï, A.
Marandon, V.
Thorpe-Morgan, C.
Brun, F.
Rowell, G.
Hinton, J. A.
Böttcher, M.
van Eldik, C.
Wagner, S. J.
Damascene Mbarubucyeye, J.
Panny, S.
Steppa, C.
Bruno, B.
Ernenwein, J. -P.
Stawarz, Łukasz
Sasaki, M.
Vink, J.
Schutte, H. M.
Luashvili, A.
Moulin, E.
Steenkamp, R.
Punch, M.
Montanari, A.
Niemiec, J.
Wong, Y. W.
Egberts, K.
Chand, T.
Le Stum, S.
Joshi, V.
Komin, N.
Uchiyama, Y.
Cotter, G.
Vecchi, M.
Marchegiani, P.
Aschersleben, J.
Lang, R. G.
Peron, G.
Tsuji, N.
Tavernier, T.
Reimer, O.
Klepser, S.
Santangelo, A.
Celic, J.
Parsons, R. D.
Boisson, C.
Grolleron, G.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 7.

Tytuł:: Spectrum and extension of the inverse-Compton emission of the Crab Nebula from a combined Fermi-LAT and H.E.S.S. analysis
Autorzy:: Holler, M.
Funk, S.
Cristofari, P.
Renaud, M.
Cecil, R.
Reville, B.
Zargaryan, D.
Komin, Nu.
Bulik, T.
Harding, A.
Cerruti, M.
Gallant, Y. A.
Reimer, A.
Fontaine, G.
Chen, A.
Steenkamp, R.
Mehta, A.
Gabici, S.
Kluźniak, W.
Kostunin, D.
Montanari, A.
Żywucka, N.
Venter, C.
Bi, B.
Lenain, J.-P.
Lemoine-Goumard, M.
Moulin, E.
de Naurois, M.
Leuschner, F.
Wach, T.
Aschersleben, J.
Sushch, I.
Malyshev, D.
Veh, J.
Zech, A.
Glombitza, J.
Steinmassl, S.
Suzuki, H.
Goswami, P.
Böttcher, M.
Chand, T.
Giavitto, G.
Einecke, S.
de Ona Wilhelmi, E.
Joshi, V.
Barbosa Martins, V.
Khélifi, B.
Wierzcholska, A.
Batzofin, R.
Meyer, M.
Moderski, R.
O’Brien, P.
Brose, R.
Specovius, A.
Baktash, A.
Jamrozy, Marek
Murach, T.
Tsuji, N.
Devin, J.
Ohm, S.
Bernlöhr, K.
Becherini, Y.
Leitl, F.
Regeard, M.
Chibueze, O.
Chandra, S.
Le Stum, S.
Kosack, K.
Spencer, S.
Holch, T. L.
Takahashi, T.
Bylund, T.
Berge, D.
Wagner, S. J.
Ren, H.
Marx, R.
Borowska, J.
Ashkar, H.
Peron, G.
Parsons, R. D.
Punch, M.
Horns, D.
Boisson, C.
Kundu, A.
Roellinghoff, G.
Zacharias, M.
Bradascio, F.
Djannati-Ataï, A.
Niemiec, J.
Mitchell, A.
Panter, M.
Salzmann, H.
Kasai, E.
Olivera-Nieto, L.
Fegan, S.
Rudak, B.
Stawarz, Łukasz
Glawion, D.
Hofmann, W.
Marinos, P.
Panny, S.
Füßling, M.
Brun, F.
Cotter, G.
Marandon, V.
Chambery, P.
Breuhaus, M.
Mackey, J.
de Bony de Lavergne, M.
Luashvili, A.
Brown, A.
Tanaka, T.
Katarzyński, K.
Zouari, S.
Dmytriiev, A.
Shapopi, J. N. S.
Aharonian, F.
van Eldik, C.
Chibueze, J.
Burger-Scheidlin, C.
Glicenstein, J. F.
Terrier, R.
Feijen, K.
Bolmont, J.
Sasaki, M.
Lang, R. G.
Reimer, O.
Steppa, C.
Lemière, A.
Unbehaun, T.
Reichherzer, P.
Bruno, B.
Ait Benkhali, F.
Sahakian, V.
Streil, K.
Ernenwein, J.-P.
Hinton, J. A.
Grondin, M.-H.
Ostrowski, Michał
Vecchi, M.
Casanova, S.
Pühlhofer, G.
Quirrenbach, A.
Prokhorov, D. A.
Backes, M.
Schüssler, F.
Schutte, H. M.
Zdziarski, A. A.
Tluczykont, M.
Grolleron, G.
Jankowsky, F.
Celic, J.
Vink, J.
Caroff, S.
Martí-Devesa, G.
Rieger, F.
Haerer, L.
Djuvsland, J.
Filipović, M.
Mohrmann, L.
Khatoon, R.
Opis:: The Crab Nebula is a unique laboratory for studying the acceleration of electrons and positrons through their non-thermal radiation. Observations of very-high-energy γ rays from the Crab Nebula have provided important constraints for modelling its broadband emission. We present the first fully self-consistent analysis of the Crab Nebula’s γ-ray emission between 1 GeV and ∼100 TeV, that is, over five orders of magnitude in energy. Using the open-source software package GAMMAPY, we combined 11.4 yr of data from the Fermi Large Area Telescope and 80 h of High Energy Stereoscopic System (H.E.S.S.) data at the event level and provide a measurement of the spatial extension of the nebula and its energy spectrum. We find evidence for a shrinking of the nebula with increasing γ-ray energy. Furthermore, we fitted several phenomenological models to the measured data, finding that none of them can fully describe the spatial extension and the spectral energy distribution at the same time. Especially the extension measured at TeV energies appears too large when compared to the X-ray emission. Our measurements probe the structure of the magnetic field between the pulsar wind termination shock and the dust torus, and we conclude that the magnetic field strength decreases with increasing distance from the pulsar. We complement our study with a careful assessment of systematic uncertainties.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 8.

Tytuł:: Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433
Autorzy:: Holler, M.
Funk, S.
Renaud, M.
Brown, A. M.
Cecil, R.
Reville, B.
Zargaryan, D.
Komin, Nu.
Bulik, T.
Ruiz-Velasco, E.
Marcowith, A.
Cerruti, M.
de Lavergne, M. de Bony
Noel, Angel
Reimer, A.
Egberts, K.
White, R.
Fontaine, G.
Chen, A.
Steenkamp, R.
Mehta, A.
Gabici, S.
Kluźniak, W.
Kostunin, D.
Montanari, A.
Żywucka, N.
Venter, C.
Bi, B.
Lenain, J.-P.
Moulin, E.
de Naurois, M.
Lohse, T.
Leuschner, F.
Wach, T.
Aschersleben, J.
Sushch, I.
Glicenstein, J.-F.
Malyshev, D.
Schäfer, J.
Veh, J.
Zech, A.
Steinmassl, S.
Suzuki, H.
Böttcher, M.
Chand, T.
Giavitto, G.
Einecke, S.
de Ona Wilhelmi, E.
Joshi, V.
Khélifi, B.
Wierzcholska, A.
Ghafourizadeh, S.
Batzofin, R.
Moderski, R.
Schwanke, U.
Lypova, I.
Santangelo, A.
Brose, R.
Bouyahiaoui, M.
Jamrozy, Marek
Murach, T.
Specovius, A.
Tsuji, N.
Ohm, S.
Bernlöhr, K.
Werner, F.
Becherini, Y.
Leitl, F.
Doroshenko, V.
Chibueze, O.
Chandra, S.
Le Stum, S.
Kosack, K.
Ricarte, H. Rueda
Spencer, S.
Holch, T. L.
Takahashi, T.
Berge, D.
Wagner, S. J.
Marchegiani, P.
Ren, H.
Marx, R.
Borowska, J.
Ashkar, H.
Peron, G.
Tsirou, M.
Parsons, R. D.
Punch, M.
Horns, D.
Boisson, C.
Kundu, A.
Zacharias, M.
Djannati-Ataï, A.
Niemiec, J.
Mitchell, A.
Panter, M.
Salzmann, H.
Kasai, E.
Olivera-Nieto, L.
Rudak, B.
Stawarz, Łukasz
Glawion, D.
Hofmann, W.
Panny, S.
Füßling, M.
Brun, F.
Cotter, G.
Filipovic, M.
Marandon, V.
Breuhaus, M.
Mackey, J.
Luashvili, A.
Tanaka, T.
Wong, Yu Wun
Katarzyński, K.
Zouari, S.
Dmytriiev, A.
Shapopi, J. N. S.
Aharonian, F.
Jardin-Blicq, A.
van Eldik, C.
Chibueze, J.
Burger-Scheidlin, C.
Terrier, R.
Bolmont, J.
Sasaki, M.
Lang, R. G.
Reimer, O.
Nakashima, K.
Steppa, C.
Lemière, A.
Unbehaun, T.
Reichherzer, P.
Martins, V. Barbosa
Bruno, B.
Sahakian, V.
Rowell, G.
Streil, K.
Ernenwein, J.-P.
Hinton, J. A.
Ostrowski, Michał
Taylor, A. M.
Vecchi, M.
Casanova, S.
Jung-Richardt, I.
Pühlhofer, G.
Quirrenbach, A.
Prokhorov, D. A.
Backes, M.
Schüssler, F.
Zdziarski, A. A.
Grolleron, G.
Jankowsky, F.
Celic, J.
Vink, J.
Klepser, S.
Caroff, S.
Martí-Devesa, G.
Mbarubucyeye, J. Damascene
Dai, S.
Sol, H.
Rieger, F.
Haerer, L.
Mohrmann, L.
Khatoon, R.
Benkhali, F. Ait
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Artykuł

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Skocz do pozycji: 9.

Tytuł:: H.E.S.S. follow-up observations of binary black hole coalescence events during the second and third gravitational-wave observing runs of Advanced LIGO and Advanced Virgo
Autorzy:: Schüssler, F.
Holch, T. L.
Batzofin, R.
Niemiec, J.
Holler, M.
Fegan, S.
Fontaine, G.
Meintjes, P. J.
Sinha, A.
Ruiz-Velasco, E.
Santangelo, A.
Nayerhoda, A.
Wierzcholska, A.
Grondin, M. -H.
Aharonian, F.
Kostunin, D.
Thorpe-Morgan, C.
de Ona Wilhelmi, E.
Katz, U.
Giavitto, G.
Caroff, S.
Ohm, S.
Glawion, D.
Konno, R.
Kasai, E.
Sanchez, D. A.
Takahashi, T.
Sasaki, M.
Spencer, S.
Zhu, S. J.
Lohse, T.
Steppa, C.
Ernenwein, J. -P.
Barbosa Martins, V.
Ait Benkhali, F.
Punch, M.
Vink, J.
Brose, R.
Boisson, C.
Casanova, S.
Werner, F.
Huang, Zhiqiu
Huber, D.
Katarzyński, K.
Mohrmann, L.
Senniappan, M.
Marchegiani, P.
Bernlöhr, K.
Bulik, T.
Böttcher, M.
Brun, F.
Veh, J.
Marandon, V.
van Eldik, C.
Schutte, H. M.
Stawarz, Łukasz
Hinton, J. A.
Poireau, V.
Salzmann, H.
Giunti, L.
Martí-Devesa, G.
Bylund, T.
Rudak, B.
Baghmanyan, V.
Bolmont, J.
Prokoph, H.
Fiasson, A.
Lypova, I.
Bi, B.
Angüner, E. O.
Wong, Yu Wun
Renaud, M.
Rueda Ricarte, H.
Uchiyama, Y.
de Naurois, M.
Moulin, E.
Kosack, K.
Majumdar, J.
Wagner, S. J.
Zargaryan, D.
Chand, T.
Mitchell, A.
Sailer, S.
Gabici, S.
Funk, S.
Muller, J.
Chen, A.
Peron, G.
Steinmassl, S.
Olivera-Nieto, L.
Sun, L.
Tsirou, M.
Ostrowski, Michał
Noel, Angel
Djannati-Ataï, A.
Kundu, A.
Khélifi, B.
Le Stum, S.
Jamrozy, Marek
Shapopi, J. N. S.
Schwanke, U.
Cotter, G.
Mackey, J.
Leuschner, F.
O'Brien, P.
Becherini, Y.
Fichet de Clairfontaine, G.
Quirrenbach, A.
Specovius, A.
Abdalla, H.
Maurin, G.
Lamanna, G.
Tanaka, T.
White, R.
Rowell, G.
Damascene Mbarubucyeye, J.
Hörbe, M.
Jung-Richardt, I.
Lemoine-Goumard, M.
Backes, M.
Prokhorov, D. A.
Żywucka, N.
Malyshev, D.
Marx, R.
Glicenstein, J. F.
Reichherzer, P.
Zouari, S.
Rieger, F.
Berge, D.
Lemière, A.
Terrier, R.
Parsons, R. D.
Pühlhofer, G.
Hofmann, W.
Luashvili, A.
Ashkar, H.
de Bony de Lavergne, M.
Murach, T.
Tsuji, N.
Egberts, K.
Sol, H.
Montanari, A.
Lenain, J. -P.
Panter, M.
Jankowsky, F.
Devin, J.
Sahakian, V.
Zdziarski, A. A.
Zech, A.
Cangemi, F.
Zacharias, M.
Komin, Nu.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Artykuł

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Skocz do pozycji: 10.

Tytuł:: The vanishing of the primary emission region in PKS 1510-089
Autorzy:: Schüssler, F.
Holch, T. L.
Batzofin, R.
Mehta, A.
Holler, M.
Fegan, S.
Barnard, J.
Niemiec, J.
Fontaine, G.
Ruiz-Velasco, E.
Santangelo, A.
Aharonian, F.
Kostunin, D.
Lang, R. G.
de Ona Wilhelmi, E.
Ren, H.
Buckley, D. A. H.
Giavitto, G.
Caroff, S.
Ohm, S.
Glawion, D.
Khatoon, R.
Kasai, E.
Sanchez, D. A.
Wierzcholska, Alicja
Takahashi, T.
Sasaki, M.
Leitl, F.
Spencer, S.
Steppa, C.
Ernenwein, J. -P.
Punch, M.
Vink, J.
Brose, R.
Reimer, O.
Boisson, C.
Casanova, S.
Wach, T.
Bradascio, F.
Katarzyński, K.
Mohrmann, L.
Chibueze, O.
Kluźniak, W.
Marchegiani, P.
Bernlöhr, K.
Bulik, T.
Böttcher, M.
Brun, F.
Panny, S.
Cerruti, M.
Veh, J.
Marandon, V.
van Eldik, C.
Borowska, J.
Schutte, H. M.
Bouyahiaoui, M.
Stawarz, Łukasz
Groenewald, D.
Salzmann, H.
Benkhali, F. Ait
Martí-Devesa, G.
Rudak, B.
Bolmont, J.
Reimer, A.
Joshi, V.
Bi, B.
Martins, V. Barbosa
de Naurois, M.
Suzuki, H.
Moulin, E.
Kosack, K.
Wagner, S. J.
Zargaryan, D.
Chand, T.
Mitchell, A.
Cooper, J.
Gabici, S.
Funk, S.
Chen, A.
Peron, G.
Steinmassl, S.
Olivera-Nieto, L.
Breuhaus, M.
Dmytriiev, A.
Chandra, S.
Davids, I. D.
Ostrowski, Michał
Noel, Angel
Doroshenko, V.
Djannati-Ataï, A.
Khélifi, B.
Le Stum, S.
Jamrozy, Marek
Shapopi, J. N. S.
Brown, A. M.
Schwanke, U.
Cotter, G.
Mackey, J.
Moderski, R.
Leuschner, F.
Ghafourizadeh, S.
Einecke, S.
O'Brien, P.
Becherini, Y.
Quirrenbach, A.
Cecil, R.
Aschersleben, J.
Specovius, A.
Tanaka, T.
van Soelen, B.
Rowell, G.
Damascene Mbarubucyeye, J.
Meyer, M.
Jung-Richardt, I.
Chibueze, J.
Bruno, B.
Haerer, L.
Backes, M.
Prokhorov, D. A.
Vecchi, M.
Żywucka, N.
Horns, D.
Grolleron, G.
Marx, R.
Glicenstein, J. F.
Reichherzer, P.
Zouari, S.
Goswami, P.
Rieger, F.
Berge, D.
Lemière, A.
Ricarte, H. Rueda
Terrier, R.
Pühlhofer, G.
Celic, J.
Hofmann, W.
Ashkar, H.
de Bony de Lavergne, M.
Luashvili, A.
Tsuji, N.
Egberts, K.
Sol, H.
Montanari, A.
Lenain, J. -P.
Sushch, I.
Panter, M.
Jankowsky, F.
Burger-Scheidlin, C.
Füßling, M.
Sahakian, V.
Zdziarski, A. A.
Zech, A.
Steenkamp, R.
Zacharias, M.
Komin, Nu.
Opis:: In 2021 July, PKS 1510−089 exhibited a significant flux drop in the high-energy γ-ray (by a factor 10) and optical (by a factor 5) bands and remained in this low state throughout 2022. Similarly, the optical polarization in the source vanished, resulting in the optical spectrum being fully explained through the steady flux of the accretion disk and the broad-line region. Unlike the aforementioned bands, the very-high-energy γ-ray and X-ray fluxes did not exhibit a significant flux drop from year to year. This suggests that the steady-state very-high-energy γ-ray and X-ray fluxes originate from a different emission region than the vanished parts of the high-energy γ-ray and optical jet fluxes. The latter component has disappeared through either a swing of the jet away from the line of sight or a significant drop in the photon production efficiency of the jet close to the black hole. Either change could become visible in high-resolution radio images.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Wyszukujesz frazę "Veh, J." wg kryterium: Autor