Results 31 to 40 of about 54,876 (252)

Discovery of a Pulsar Wind Nebula Candidate Associated with the Galactic PeVatron 1LHAASO J0343+5254u

The Astrophysical Journal
The astronomical origins of the most energetic galactic cosmic rays and gamma rays are still uncertain. X-ray follow-up of candidate “PeVatrons”—systems producing cosmic rays with energies exceeding 1 PeV—can constrain their spatial origin, identify ...
Stephen DiKerby, Shuo Zhang, Tülün Ergin, Naomi Tsuji, Kaya Mori, Fabio Acero, Samar Safi-Harb, Shunya Takekawa, Jooyun Woo   +8 more
doaj   +2 more sources

Observation of Gamma Rays up to 320 TeV from the Middle-aged TeV Pulsar Wind Nebula HESS J1849−000 [PDF]

Astrophysical Journal, 2023
Gamma rays from HESS J1849−000, a middle-aged TeV pulsar wind nebula (PWN), are observed by the Tibet air shower array and the muon detector array.
M. Amenomori, S. Asano, Y. Bao, X. Bi, D. Chen, T. Chen, W. Chen, Xinfa Chen, Y. Chen, Cirennima, S. Cui, Danzengluobu, L. Ding, J. Fang, K. Fang, C. Feng, Zhaoyang Feng, Z. Feng, Qi Gao, A. Gomi, Q. Gou, Y. Guo, Y. Guo, Y. Hayashi, H. He, Z. He, K. Hibino, N. Hotta, Haibing Hu, H. Hu, K. Hu, J. Huang, H. Jia, L. Jiang, P. Jiang, H. Jin, K. Kasahara, Y. Katayose, C. Kato, S. Kato, I. Kawahara, T. Kawashima, K. Kawata, M. Kozai, D. Kurashige, Labaciren, G. Le, A. Li, H. Li, W. Li, Y. Li, Y. H. Lin, B. Liu, C. Liu, J. Liu, L. Liu, M. Liu, W. Liu, H. Lu, X. Meng, Y. Meng, K. Munakata, K. Nagaya, Y. Nakamura, Y. Nakazawa, H. Nanjo, C. Ning, M. Nishizawa, R. Noguchi, M. Ohnishi, S. Okukawa, S. Ozawa, X. Qian, X. Qian, X. Qu, T. Saito, Y. Sakakibara, M. Sakata, T. Sako, T. Sako, T. Sasaki, J. Shao, M. Shibata, A. Shiomi, H. Sugimoto, W. Takano, M. Takita, Y. Tan, N. Tateyama, S. Torii, H. Tsuchiya, S. Udo, Hong Wang, S. F. Wang, Y. Wang, Wangdui, H. Wu, Q. Wu, J. L. Xu, L. Xue, Z. Yang, Y. Yao, J. Yin, Y. Yokoe, Yi Yu, A. Yuan, L. Zhai, H. Zhang, J. Zhang, X. Zhang, Xin Zhang, Y. Zhang, Yi Zhang, Ying Zhang, S. Zhao, Zhaxisangzhu, X. Zhou, Y. Z. D. O. Physics, Hirosaki University, Department of Physics, Shinshu University, School of Physics Astronomy, S. Science, Nanjing University, Key Laboratory of Particle Astrophysics, Institute of Theoretical Physics, Chinese Academy of Sciences, National Astronomical Observatories, D. O. Mathematics, Physics, T. University, H. University, U. O. A. Sciences, Institute of Frontier, Interdisciplinary Science, Key Laboratory for the Physics, Particle Irradiation, Shandong University, Institute of Theoretical Physics, S. University, Faculty of Electrical Engineering, Yokohama National University, Kanagawa University, Faculty of Education, Utsunomiya University, Faculty of Electrical Engineering, Shibaura Institute of Technology, Inst. for Nucl. Research, U. Tokyo, Polar Environment Data Science Center, Joint Support-Center for Data Science Research, Research Organization of Information, Systems, National Center for Space Weather, China Meteorological Administration, School of Materials Science, Engineering, Shandong University, D. Astronomy, School of Physical Sciences, University of Electronic Science, T. China, College of Industrial Technology, N. University, National Institute of Informatics, National Institute of Information, Communications Technology, Department of Mechanical, Electrical Engineering, Shangdong Management University, C. Science, C. Petroleum, Tokyo Institute of Technology, K. University, Shonan Institute of Technology, Research Institute of Natural Science, W. University, Japan Atomic Energy Agency, Key Laboratory of Dark Matter, S. Astronomy, Purple Mountain Observatory   +180 more
semanticscholar   +1 more source

Pulsar-wind-nebula-powered Galactic center X-ray filament G0.13-0.11. Proof of the synchrotron nature by IXPE [PDF]

Astronomy & Astrophysics, 2023
We report the discovery of X-ray polarization from the X-ray-bright filament. G0.13-0.11 in the Galactic center (GC) region. This filament features a bright, hard X-ray source that is most plausibly a pulsar wind nebula (PWN) and an extended and ...
E. Churazov, I. Khabibullin, T. Barnouin, N. Bucciantini, E. Costa, L. D. Gesu, A. D. Marco, R. Ferrazzoli, W. Forman, P. Kaaret, Dawoon E. Kim, J. Kolodziejczak, R. Kraft, F. Marin, G. Matt, M. Negro, R. Romani, Stefano Silvestri, P. Soffitta, R. Sunyaev, J. Svoboda, A. Vikhlinin, M. Weisskopf, F. Xie, I. Agudo, L. A. Antonelli, M. Bachetti, L. Baldini, W. Baumgartner, R. Bellazzini, Stefano Bianchi, S. Bongiorno, R. Bonino, A. Brez, F. Capitanio, S. Castellano, E. Cavazzuti, Chien-Ting J. Chen, S. Ciprini, A. D. Rosa, E. Monte, N. D. Lalla, I. Donnarumma, Victor Doroshenko, M. Dovvciak, S. Ehlert, T. Enoto, Y. Evangelista, S. Fabiani, Javier A. Garc'ia, S. Gunji, K. Hayashida, J. Heyl, W. Iwakiri, S. Jorstad, V. Karas, F. Kislat, T. Kitaguchi, H. Krawczynski, F. L. Monaca, L. Latronico, I. Liodakis, S. Maldera, A. Manfreda, A. Marinucci, A. Marscher, H. Marshall, F. Massaro, I. Mitsuishi, T. Mizuno, F. Muleri, C. Ng, S. O’Dell, N. Omodei, C. Oppedisano, A. Papitto, G. Pavlov, A. L. Peirson, M. Perri, M. Pesce-Rollins, P. Petrucci, M. Pilia, A. Possenti, J. Poutanen, S. Puccetti, B. Ramsey, J. Rankin, A. Ratheesh, O. Roberts, C. Sgro’, P. Slane, G. Spandre, D. Swartz, T. Tamagawa, F. Tavecchio, R. Taverna, Y. Tawara, A. Tennant, N. Thomas, F. Tombesi, A. Trois, S. Tsygankov, R. Turolla, J. Vink, Kinwah Wu, S. Zane   +105 more
semanticscholar   +1 more source

A Multiwavelength Investigation of PSR J2229+6114 and its Pulsar Wind Nebula in the Radio, X-Ray, and Gamma-Ray Bands [PDF]

, 2023
G106.3+2.7, commonly considered to be a composite supernova remnant (SNR), is characterized by a boomerang-shaped pulsar wind nebula (PWN) and two distinct (“head” and “tail”) regions in the radio band. A discovery of very-high-energy gamma-ray emission (
I. Pope, K. Mori, M. Abdelmaguid, J. Gelfand, S. Reynolds, S. Safi-Harb, C. Hailey, H. An, V. C. P. Bangale, P. Batista, W. Benbow, J. Buckley, M. Capasso, J. Christiansen, A. Chromey, A. Falcone, Q. Feng, J. Finley, G. Foote, G. Gallagher, W. Hanlon, D. Hanna, O. Hervet, J. Holder, T. Humensky, W. Jin, P. Kaaret, M. Kertzman, D. Kieda, T. Kleiner, N. Korzoun, F. Krennrich, S. Kumar, M. Lang, G. Maier, C. McGrath, C. Mooney, P. Moriarty, R. Mukherjee, S. O’Brien, R. Ong, N. Park, S. Patel, K. Pfrang, M. Pohl, E. Pueschel, J. Quinn, K. Ragan, P. Reynolds, E. Roache, I. Sadeh, L. Saha, G. Sembroski, D. Tak, J. Tucci, A. Weinstein, D. Williams, J. Woo   +57 more
semanticscholar   +1 more source

X-Ray Studies of the Pulsar PSR J1420–6048 and Its TeV Pulsar Wind Nebula in the Kookaburra Region [PDF]

Astrophysical Journal, 2023
We present a detailed analysis of broadband X-ray observations of the pulsar PSR J1420−6048 and its wind nebula (PWN) in the Kookaburra region with Chandra, XMM-Newton, and NuSTAR.
Jaegeun Park, Chanho Kim, J. Woo, H. An, K. Mori, S. Reynolds, S. Safi-Harb   +6 more
semanticscholar   +1 more source

Vela pulsar wind nebula X-rays are polarized to near the synchrotron limit. [PDF]

Nature, 2022
Pulsar wind nebulae are formed when outflows of relativistic electrons and positrons hit the surrounding supernova remnant or interstellar medium at a shock front.
F. Xie, A. Di Marco, F. La Monaca, Kuan Liu, F. Muleri, N. Bucciantini, R. Romani, E. Costa, J. Rankin, P. Soffitta, M. Bachetti, N. Di Lalla, S. Fabiani, R. Ferrazzoli, S. Gunji, L. Latronico, M. Negro, N. Omodei, M. Pilia, A. Trois, E. Watanabe, I. Agudo, L. A. Antonelli, L. Baldini, W. Baumgartner, R. Bellazzini, S. Bianchi, S. Bongiorno, R. Bonino, A. Brez, F. Capitanio, S. Castellano, E. Cavazzuti, S. Ciprini, A. De Rosa, E. Del Monte, L. Di Gesu, I. Donnarumma, Victor Doroshenko, M. Dovčiak, S. Ehlert, T. Enoto, Y. Evangelista, Javier A. García, K. Hayashida, J. Heyl, W. Iwakiri, S. Jorstad, V. Karas, T. Kitaguchi, J. Kolodziejczak, H. Krawczynski, I. Liodakis, S. Maldera, A. Manfreda, F. Marin, A. Marinucci, A. Marscher, H. Marshall, F. Massaro, G. Matt, I. Mitsuishi, T. Mizuno, C. Ng, S. O’Dell, C. Oppedisano, A. Papitto, G. Pavlov, A. L. Peirson, M. Perri, M. Pesce-Rollins, P. Petrucci, A. Possenti, J. Poutanen, S. Puccetti, B. Ramsey, A. Ratheesh, C. Sgro’, P. Slane, G. Spandre, T. Tamagawa, F. Tavecchio, R. Taverna, Y. Tawara, A. Tennant, N. Thomas, F. Tombesi, S. Tsygankov, R. Turolla, J. Vink, M. Weisskopf, Kinwah Wu, S. Zane   +92 more
semanticscholar   +1 more source

The Eel Pulsar Wind Nebula: A PeVatron-candidate Origin for HAWC J1826−128 and HESS J1826−130 [PDF]

Astrophysical Journal, 2022
HAWC J1826−128 is one of the brightest Galactic TeV γ-ray sources detected by the High Altitude Water Cherenkov (HAWC) observatory, with photon energies extending up to nearly ∼100 TeV. This HAWC source spatially coincides with the H.E.S.S.
Daniel A. Burgess, K. Mori, J. Gelfand, C. Hailey, Y. M. Tokayer, J. Woo, H. An, K. Malone, S. Reynolds, S. Safi-Harb, T. Temim   +10 more
semanticscholar   +1 more source

Studying particle acceleration from driven magnetic reconnection at the termination shock of a relativistic striped wind using particle-in-cell simulations [PDF]

EPJ Web of Conferences, 2020
A rotating pulsar creates a surrounding pulsar wind nebula (PWN) by steadily releasing an energetic wind into the interior of the expanding shockwave of supernova remnant or interstellar medium.
Lu Yingchao, Guo Fan, Kilian Patrick, Li Hui, Huang Chengkun, Liang Edison   +5 more
doaj   +1 more source

Additional Evidence for a Pulsar Wind Nebula in the Heart of SN 1987A from Multiepoch X-Ray Data and MHD Modeling [PDF]

Astrophysical Journal, 2022
Since the day of its explosion, supernova (SN) 1987A has been closely monitored to study its evolution and to detect its central compact relic. In fact, the formation of a neutron star is strongly supported by the detection of neutrinos from the SN ...
E. Greco, M. Miceli, S. Orlando, B. Olmi, F. Bocchino, S. Nagataki, Lei Sun, J. Vink, V. Sapienza, M. Ono, Akira Dohi, G. Peres   +11 more
semanticscholar   +1 more source

Ultra-high-energy Gamma-Ray Radiation from the Crab Pulsar Wind Nebula [PDF]

Astrophysical Journal, 2022
It has been long debated whether the high-energy gamma-ray radiation from the Crab Nebula stems from leptonic or hadronic processes. In this work, we investigate the multiband nonthermal radiation from the Crab pulsar wind nebula with the leptonic and ...
Lin Nie, Yang Liu, Zejun Jiang, X. Geng
semanticscholar   +1 more source