Results 11 to 20 of about 1,867,471 (206)

PeV Emission of the Crab Nebula: Constraints on the Proton Content in Pulsar Wind and Implications [PDF]

Astrophysical Journal, 2021
Recently, two photons from the Crab Nebula with energy of approximately 1 PeV were detected by the Large High Altitude Air Shower Observatory (LHAASO), opening an ultrahigh-energy window for studying pulsar wind nebulae (PWNe).
Ruo-Yu Liu, Xiang‐Yu Wang
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Peta–electron volt gamma-ray emission from the Crab Nebula [PDF]

Science, 2021
High-energy photons from the Crab Nebula The Crab Nebula contains a pulsar that excites the surrounding gas to emit high-energy radiation. The combination of the pulsar's youth and nearby location makes the nebula the brightest gamma-ray source in the ...
Z. Cao, F. Aharonian, Q. An, Axikegu, L. Bai, Y. Bai, Y. Bao, D. Bastieri, X. Bi, Y. Bi, H. Cai, J. Cai, Z. Cao, J. Chang, J. Chang, B. Chen, E. Chen, J. Chen, Liang Chen, Long Chen, M. Chen, M. Chen, Q. Chen, S. Chen, S. Z. Chen, T. Chen, X. L. Chen, Y. Chen, N. Cheng, Y. Cheng, S. Cui, X. Cui, Y. Cui, B. D’Ettorre Piazzoli, B. Dai, H. Dai, Z. Dai, Danzengluobu, D. della Volpe, X. Dong, K. Duan, J. Fan, Y. Fan, Z. Fan, J. Fang, K. Fang, C. Feng, L. Feng, S. Feng, Y. Feng, B. Gao, C. Gao, L. Gao, Q. Gao, W. Gao, M. Ge, L. Geng, G. Gong, Q. Gou, M. Gu, F. Guo, J. G. Guo, X. Guo, Y. Guo, Y. Guo, Y. Han, H. He, H. He, J. He, S. L. He, X. He, Y. He, M. Heller, Y. Hor, C. Hou, X. Hou, H. Hu, S. Hu, S. Hu, X. Hu, D. Huang, Q. Huang, W. Huang, X. Huang, X. Y. Huang, Z. Huang, F. Ji, X. Ji, H. Jia, K. Jiang, Z. Jiang, C. Jin, T. Ke, D. Kuleshov, K. Levochkin, B. Li, Cheng Li, Cong Li, F. Li, H. Li, H. C. Li, H. Li, Jian Li, Jie Li, K. Li, W. Li, X. Li, Xin Li, Y. Li, Y. Li, Zhe Li, Zhuo Li, E. Liang, Y. Liang, S. Lin, B. Liu, C. Liu, D. Liu, H. Liu, H. Liu, J. Liu, J. Liu, J. Liu, J. Liu, M. Liu, R. Liu, S. M. Liu, W. Liu, Y. Liu, Y. Liu, Z. Liu, W. Long, R. Lu, H. Lv, B. Ma, Li Ma, X. Ma, J. Mao, A. Masood, Z. Min, W. Mitthumsiri, T. Montaruli, Y. Nan, B. Pang, P. Pattarakijwanich, Z. Pei, M. Qi, Ye Qi, B. Qiao, J. Qin, D. Ruffolo, V. Rulev, Alejandro Sáiz, L. Shao, O. Shchegolev, X. Sheng, J. Shi, H. Song, Y. Stenkin, V. Stepanov, Y. Su, Q. N. Sun, X. Sun, Z. Sun, P. Tam, Z. Tang, W. Tian, B. Wang, C. Wang, H. Wang, H. Wang, J. Wang, J. Wang, L. Wang, L. Wang, R. Wang, W. Wang, X. Wang, X. J. Wang, X. Y. Wang, Y. Wang, Y. Wang, Y. J. Wang, Y. Wang, Z. Wang, Z. Wang, Zhen Wang, Z. Wang, D. Wei, J. Wei, Y. J. Wei, T. Wen, C. Y. Wu, H. Wu, S. Wu, W. X. Wu, X. Wu, S. Xi, J. Xia, J. Xia, G. Xiang, D. Xiao, G. Xiao, H. B. Xiao, G. Xin, Y. Xin, Y. Xing, D. Xu, R. Xu, L. Xue, D. Yan, J. Yan, C. Yang, F. Yang, J. Yang, L. L. Yang, M. Yang, R. Yang, S. Yang, Y. Yao, Z. Yao, Y. Ye, L. Yin, N. Yin, X. You, Z. You, Y. Yu, Q. Yuan, H. Zeng, T. Zeng, W. Zeng, Z. Zeng, M. Zha, X. Zhai, B. Zhang, H. Zhang, H. Zhang, J. Zhang, J. Zhang, L. X. Zhang, Li Zhang, Lun Zhang, P. Zhang, P. Zhang, R. Zhang, S. Zhang, S. Zhang, X. Zhang, X. Zhang, Y. Zhang, Y. Zhang, Yi. Zhang, Yong Zhang, B. Zhao, J. Zhao, L. Zhao, L. Zhao, S. Zhao, F. Zheng, Y. Zheng, B. Zhou, H. Zhou, J. Zhou, P. Zhou, R. Zhou, X. Zhou, C. Zhu, F. Zhu, H. Zhu, K. Zhu, X. Zuo   +270 more
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Daily monitoring of TeV gamma-ray emission from Mrk 421, Mrk 501, and the Crab Nebula with HAWC [PDF]

, 2017
We present results from daily monitoring of gamma-rays in the energy range from ∼0.5 to ∼100 TeV with the first 17 months of data from the High Altitude Water Cherenkov (HAWC) Observatory.
A. U. Abeysekara, A. Albert, R. Alfaro, C. Álvarez, J. D. Álvarez, R. Arceo, J. C. Arteaga‐Velázquez, D. Avila Rojas, H. A. Ayala Solares, A. S. Barber, N. Bautista-Elivar, J. Becerra González, A. Becerril, E. Moreno, S. BenZvi, A. Bernal, J. Braun, C. Brisbois, K. S. Caballero‐Mora, T. Capistrán, A. Carramiñana, S. Casanova, M. Castillo, U. Cotti, J. Cotzomi, S. Coutiño de León, C. de León, E. De la Fuente, R. Díaz Hernández, B. L. Dingus, M. A. DuVernois, J. C. Díaz–Vélez, R. W. Ellsworth, K. Engel, D. W. Fiorino, N. Fraija, J. A. García-González, F. Garfias, M. Gerhardt, Alfonso Muñoz, M. M. González, J. A. Goodman, Z. Hampel-Arias, J. P. Harding, S. Hernández, A. Hernández-Almada, B. Hona, C. M. Hui, P. Hüntemeyer, A. Iriarte, A. Jardin-Blicq, Vikas Joshi, S. Kaufmann, D. Kieda, A. Lara, R. Lauer, W.H. Lee, D. Lennarz, H. León Vargas, J. Linnemann, A. L. Longinotti, G. Luis-Raya, R. Luna-García, R. López-Coto, K. Malone, S. S. Marinelli, O. Martı́nez, I. Martínez-Castellanos, J. Martínez-Castro, J. Matthews, P. Miranda-Romagnoli, E. Moreno, M. Mostafá, L. Nellen, M. Newbold, M. U. Nisa, R. Noriega-Papaqui, J. Pretz, E. G. Pérez‐Pérez, Zhixiang Ren, Chang Dong Rho, C. Rivière, D. Rosa‐González, M. Rosenberg, E. Ruiz-Velasco, F. Salesa Greus, A. Sandoval, M. Schneider, Harm Schoorlemmer, G. Sinnis, A. J. Smith, R. W. Springer, P. Surajbali, I. Taboada, O. Tibolla, Kirsten Tollefson, I. Torres, T. N. Ukwatta, G. Vianello, T. Weisgarber   +99 more
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Herschel spectral-mapping of the Helix Nebula (NGC 7293): Extended CO photodissociation and OH+ emission [PDF]

, 2014
Context. The Helix nebula (NGC 7293) is our closest planetary nebulae. Therefore, it is an ideal template for photochemical studies at small spatial scales in planetary nebulae. Aims.
M. Etxaluze, J. Cernicharo, J. R. Goicoechea, P. A. M. van Hoof, B. M. Swinyard, M. J. Barlow, G. C. Van de Steene, M. A. T. Groenewegen, F. Kerschbaum, T. Lim, François Lique, M. Matsuura, Chris Pearson, E. T. Polehampton, P. Royer, Toshiya Ueta   +15 more
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Observations of the planetary nebula SMP LMC 058 with the JWST MIRI medium resolution spectrometer [PDF]

Monthly notices of the Royal Astronomical Society, 2023
During the commissioning of JWST, the Medium-Resolution Spectrometer (MRS) on the Mid-Infrared Instrument (MIRI) observed the planetary nebula SMP LMC 058 in the Large Magellanic Cloud.
O. Jones, J. Álvarez-Márquez, G. Sloan, P. Kavanagh, I. Argyriou, D. Law, Á. Labiano, P. Patapis, M. Mueller, K. Larson, S. Bright, P. Klaassen, O. Fox, D. Gasman, V. Geers, A. Glauser, P. Guillard, O. Nayak, A. Noriega-Crespo, M. Ressler, B. Sargent, T. Temim, B. Vandenbussche, M. G. Mar'in   +23 more
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Persistent Radio Emission from Synchrotron Heating by a Repeating Fast Radio Burst Source in a Nebula [PDF]

Astrophysical Journal, 2020
The first repeating fast radio burst (FRB), FRB 121102, was found to be associated with a spatially coincident, persistent nonthermal radio source, but the origin of the persistent emission remains unknown.
Qiao-Chu Li, Yuanpei Yang, Z. Dai
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Simultaneous space and phase resolved X-ray polarimetry of the Crab pulsar and nebula [PDF]

Nature Astronomy, 2022
X-ray polarization measurements of the Crab nebula and pulsar by the IXPE satellite reveal a global toroidal magnetic field with large variations in local polarization, suggesting a more complex turbulence distribution than anticipated.
N. Bucciantini, R. Ferrazzoli, M. Bachetti, J. Rankin, N. Di Lalla, C. Sgro’, N. Omodei, T. Kitaguchi, T. Mizuno, S. Gunji, E. Watanabe, L. Baldini, P. Slane, M. Weisskopf, R. Romani, A. Possenti, H. Marshall, S. Silvestri, L. Pacciani, M. Negro, F. Muleri, E. de Oña Wilhelmi, F. Xie, J. Heyl, M. Pesce-Rollins, J. Wong, M. Pilia, I. Agudo, L. A. Antonelli, W. Baumgartner, R. Bellazzini, S. Bianchi, S. Bongiorno, R. Bonino, A. Brez, F. Capitanio, S. Castellano, E. Cavazzuti, Chien-Ting J. Chen, S. Ciprini, E. Costa, A. De Rosa, E. Del Monte, L. Di Gesu, A. Di Marco, I. Donnarumma, Victor Doroshenko, M. Dovčiak, S. Ehlert, T. Enoto, Y. Evangelista, S. Fabiani, Javier A. García, K. Hayashida, W. Iwakiri, S. Jorstad, P. Kaaret, V. Karas, F. Kislat, J. Kolodziejczak, H. Krawczynski, F. La Monaca, L. Latronico, I. Liodakis, S. Maldera, A. Manfreda, F. Marin, A. Marinucci, A. Marscher, F. Massaro, G. Matt, I. Mitsuishi, C. Ng, S. O’Dell, C. Oppedisano, A. Papitto, G. Pavlov, A. L. Peirson, M. Perri, P. Petrucci, J. Poutanen, S. Puccetti, B. Ramsey, A. Ratheesh, O. Roberts, P. Soffitta, 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   +100 more
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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
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Positron flux and γ-ray emission from Geminga pulsar and pulsar wind nebula [PDF]

Monthly notices of the Royal Astronomical Society, 2018
Nearby pulsars have been suggested as sources of $\sim$TeV $e^+/e^-$ Cosmic Ray (CR) excess on Earth. The High-Altitude Water Cherenkov Observatory (HAWC) detected extended TeV emission regions in the direction of two nearby middle-aged pulsars, Geminga ...
Xiaping Tang, T. Piran
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Detection of polarized gamma-ray emission from the Crab nebula with the Hitomi Soft Gamma-ray Detector† [PDF]

Nippon Tenmon Gakkai obun kenkyu hokoku, 2018
We present the results from the Hitomi Soft Gamma-ray Detector (SGD) observation of the Crab nebula. The main part of SGD is a Compton camera, which in addition to being a spectrometer, is capable of measuring polarization of gamma-ray photons.
F. Aharonian, H. Akamatsu, F. Akimoto, S. Allen, S. Allen, L. Angelini, M. Audard, H. Awaki, M. Axelsson, A. Bamba, M. Bautz, R. Blandford, R. Blandford, L. Brenneman, G. Brown, E. Bulbul, E. Cackett, M. Chernyakova, M. Chiao, P. Coppi, E. Costantini, J. Plaa, C. Vries, J. Herder, C. Done, T. Dotani, K. Ebisawa, M. Eckart, T. Enoto, Y. Ezoe, A. Fabian, C. Ferrigno, A. Foster, R. Fujimoto, Y. Fukazawa, A. Furuzawa, M. Galeazzi, L. Gallo, P. Gandhi, M. Giustini, A. Goldwurm, L. Gu, M. Guainazzi, Y. Haba, K. Hagino, K. Hamaguchi, K. Hamaguchi, I. Harrus, I. Harrus, I. Hatsukade, Katsuhiro Hayashi, Katsuhiro Hayashi, T. Hayashi, K. Hayashida, J. Hiraga, A. Hornschemeier, A. Hoshino, J. Hughes, Y. Ichinohe, R. Iizuka, H. Inoue, Y. Inoue, M. Ishida, K. Ishikawa, Y. Ishisaki, M. Iwai, J. Kaastra, J. Kaastra, T. Kallman, T. Kamae, J. Kataoka, S. Katsuda, N. Kawai, R. Kelley, C. Kilbourne, T. Kitaguchi, S. Kitamoto, T. Kitayama, T. Kohmura, M. Kokubun, K. Koyama, S. Koyama, P. Kretschmar, H. Krimm, H. Krimm, A. Kubota, H. Kunieda, P. Laurent, Shiu-Hang Lee, M. Leutenegger, M. Leutenegger, O. Limousin, M. Loewenstein, M. Loewenstein, K. Long, D. Lumb, G. Madejski, Y. Maeda, D. Maier, K. Makishima, M. Markevitch, H. Matsumoto, K. Matsushita, D. McCammon, B. McNamara, M. Mehdipour, E. Miller, Jonathan M. Miller, S. Mineshige, K. Mitsuda, I. Mitsuishi, T. Miyazawa, T. Mizuno, H. Mori, K. Mori, K. Mukai, Koji Mukai, H. Murakami, R. Mushotzky, T. Nakagawa, H. Nakajima, T. Nakamori, S. Nakashima, K. Nakazawa, K. Nobukawa, M. Nobukawa, H. Noda, H. Odaka, T. Ohashi, M. Ohno, T. Okajima, N. Ota, M. Ozaki, F. Paerels, S. Paltani, R. Petre, C. Pinto, F. Porter, K. Pottschmidt, K. Pottschmidt, C. Reynolds, S. Safi-Harb, S. Saito, K. Sakai, T. Sasaki, G. Sato, Kosuke Sato, R. Sato, M. Sawada, N. Schartel, Peter J. Serlemtsos, H. Seta, M. Shidatsu, A. Simionescu, Randall K. Smith, Y. Soong, L. Stawarz, Y. Sugawara, S. Sugita, A. Szymkowiak, H. Tajima, H. Takahashi, Tadayuki Takahashi, S. Takeda, Y. Takei, T. Tamagawa, T. Tamura, Takaaki Tanaka, Yasuo Tanaka, Yasuo Tanaka, Yasuyuki T. Tanaka, M. Tashiro, Y. Tawara, Y. Terada, Y. Terashima, F. Tombesi, F. Tombesi, F. Tombesi, H. Tomida, Y. Tsuboi, M. Tsujimoto, H. Tsunemi, T. Tsuru, H. Uchida, H. Uchiyama, Y. Uchiyama, S. Ueda, Y. Ueda, S. Uno, C. M. Urry, E. Ursino, S. Watanabe, N. Werner, N. Werner, N. Werner, D. Wilkins, B. Williams, S. Yamada, H. Yamaguchi, H. Yamaguchi, K. Yamaoka, N. Yamasaki, M. Yamauchi, S. Yamauchi, T. Yaqoob, T. Yaqoob, Y. Yatsu, D. Yonetoku, I. Zhuravleva, A. Zoghbi, Y. Uchida, Y. Uchida   +211 more
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