Results 11 to 20 of about 110,738 (286)

Which Stars are Ionizing the Orion Nebula ? [PDF]

, 2017
The common assumption that Theta-1-Ori C is the dominant ionizing source for the Orion Nebula is critically examined. This assumption underlies much of the existing analysis of the nebula.
Ferland, G. J., Kollatschny, W., O'Dell, C. R.   +2 more
core   +5 more sources

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
semanticscholar   +1 more source

Nebula Graph: An open source distributed graph database [PDF]

arXiv.org, 2022
This paper introduces the recent work of Nebula Graph, an open-source, distributed, scalable, and native graph database. We present a system design trade-off and a comprehensive overview of Nebula Graph internals, including graph data models, partitioning
Min Wu, Xing Yi, Huijun Yu, Yu Liu, Yujue Wang   +4 more
semanticscholar   +1 more source

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
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

NEBULA is a fast negative binomial mixed model for differential or co-expression analysis of large-scale multi-subject single-cell data

Communications Biology, 2021
The increasing availability of single-cell data revolutionizes the understanding of biological mechanisms at cellular resolution. For differential expression analysis in multi-subject single-cell data, negative binomial mixed models account for both ...
Liang He, J. Dávila-Velderrain, Tomokazu S. Sumida, D. Hafler, M. Kellis, A. Kulminski   +5 more
semanticscholar   +1 more source

NeBula: TEAM CoSTAR's Robotic Autonomy Solution that Won Phase II of DARPA Subterranean Challenge

Field Robotics, 2022
This paper presents and discusses algorithms, hardware, and software architecture developed by the TEAM CoSTAR (Collaborative SubTerranean Autonomous Robots), competing in the DARPA Subterranean Challenge.
A. Agha, K. Otsu, B. Morrell, David D. Fan, Rohan Thakker, Angel Santamaria-Navarro, Sung-Kyun Kim, Amanda Bouman, Xianmei Lei, J. Edlund, M. Ginting, K. Ebadi, Matthew O. Anderson, T. Pailevanian, Edward Terry, Michael T. Wolf, Andrea Tagliabue, T. Vaquero, M. Palieri, S. Tepsuporn, Yun Chang, A. Kalantari, Fernando Chavez, B. Lopez, Nobuhiro Funabiki, Gregory Miles, Thomas Touma, Alessandro Buscicchio, J. Tordesillas, Nikhilesh Alatur, J. Nash, W. Walsh, Sunggoo Jung, Hanseob Lee, C. Kanellakis, John Mayo, Scott Harper, Marcel Kaufmann, Anushri Dixit, Gustavo J. Correa, Carlyn-Ann Lee, Jay L. Gao, Gene Merewether, Jairo Maldonado-Contreras, Gautam Salhotra, Maira Saboia Da Silva, Benjamin Ramtoula, S. Fakoorian, A. Hatteland, Taeyeon Kim, Tara Bartlett, Alex Stephens, Leon Kim, C. Bergh, Eric Heiden, T. Lew, A. Cauligi, Tristan Heywood, Andrew Kramer, H. Leopold, H. Melikyan, Hyung-yong Choi, S. Daftry, O. Toupet, Inhwan Wee, A. Thakur, Micah Feras, G. Beltrame, G. Nikolakopoulos, Da-Yeon Shim, L. Carlone, J. Burdick   +71 more
semanticscholar   +1 more source

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
semanticscholar   +1 more source

A Concordance Picture of FRB 121102 as a Flaring Magnetar Embedded in a Magnetized Ion–Electron Wind Nebula [PDF]

Astrophysical Journal, 2018
The fast radio burst FRB 121102 has repeated multiple times, enabling the identification of its host galaxy and of a spatially coincident, compact, steady (“persistent”) radio synchrotron source.
B. Margalit, B. Metzger
semanticscholar   +1 more source

Observation of the Crab Nebula with LHAASO-KM2A − a performance study *

Chinese Physics C, High Energy Physics & Nuclear Physics, 2020
As a sub-array of the Large High Altitude Air Shower Observatory (LHAASO), KM2A is mainly designed to cover a large fraction of the northern sky to hunt for gamma-ray sources at energies above 10 TeV.
F. Aharonian, Q. An, Axikegu, L. Bai, Bai Yibing, Y. Bao, D. Bastieri, X. Bi, Y. Bi, H. Cai, J. Cai, Z. Cao, J. Chang, J. Chang, X. Chang, B. Chen, J. Chen, L. Chen, M. Chen, M. Chen, Q. Chen, Sina Chen, S. Z. Chen, T. Chen, X. L. Chen, Yu-lei Chen, N. Cheng, Y. Cheng, S. Cui, X. Cui, Y. D. Cui, B. Dai, H. Dai, Z. Dai, Danzengluobu, D. Volpe, B. Piazzoli, X. Dong, Junhui Fan, Yuanchun Fan, Z. Fan, J. Fang, K. Fang, C. Feng, L. Feng, S. Feng, Y. Feng, B. Gao, C. Gao, Q. Gao, W. Gao, M. Ge, L. Geng, G. Gong, Q. Gou, M. Gu, J. G. Guo, X. Guo, Y. Guo, Y. Guo, Y. Han, H. He, H. He, J. He, S. L. He, Xinbo He, Y. He, M. Heller, Y. Hor, C. Hou, Xing-yuan Hou, H. Hu, Shichao Hu, Sen Hu, Xiaopeng Hu, D. Huang, Qizhi Huang, W. Huang, X. Huang, Z. Huang, F. Ji, X. Ji, H. Jia, K. Jiang, Z. Jiang, C. Jin, D. Kuleshov, K. Levochkin, Boyang Li, C-Q. Li, F. Li, H. Li, H. C. Li, Hefan Li, J. Li, Kuncheng Li, W. Li, X. Li, Xufang Li, Youping Li, Y. Li, Z. Li, E. Liang, Yun-Feng Liang, Shuibin Lin, B. Liu, C. Liu, D. Liu, H. Liu, H. Liu, J. Liu, Jinyao Liu, J. Liu, J. Liu, M. Liu, R. Liu, Shujuan Liu, W. Liu, Yunchao Liu, Z. Liu, W. Long, R. Lu, H. Lv, B. Ma, Li Ma, X. Ma, J. Mao, A. Masood, W. Mitthumsiri, T. Montaruli, Y. Nan, B. Pang, P. Pattarakijwanich, Z. Pei, M. Qi, D. Ruffolo, V. Rulev, Alejandro Sáiz, L. Shao, O. Shchegolev, X. Sheng, J. R. Shi, H. Song, Y. Stenkin, V. Stepanov, Qie Sun, X. Sun, Z. Sun, P. Tam, Zebo Tang, W. Tian, B. Wang, Cunguo Wang, H. Wang, Hong-Guang Wang, J. Wang, Jing Wang, L. Wang, L. Wang, R. Wang, W. Wang, Xiang-Gao Wang, Xuelong Wang, X. Y. Wang, Yongchun Wang, Y. J. Wang, Y. Wang, Z. Wang, Z. Wang, Zhi-min Wang, D. Wei, J. Wei, Y. J. Wei, T. Wen, C. Y. Wu, H. Wu, Siting Wu, W. X. Wu, Xin Wu, S. Xi, J. Xia, J. Xia, G. Xiang, G. Xiao, H. B. Xiao, G. Xin, Y. Xin, Y. Xing, D. Xu, R. Xu, L. Xue, D. Yan, C. Yang, Fan Yang, J. Yang, Linbin Yang, M. Yang, Rui-zhi Yang, S. Yang, Yu 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, Bo Zhang, H. Zhang, H. Zhang, J. Zhang, Jinlong Zhang, L. Zhang, Lun Zhang, P. Zhang, P. Zhang, R. Zhang, S. Zhang, S. Zhang, X. Zhang, X. Zhang, Y. Zhang, Y. Zhang, Y. Zhang, Binyu Zhao, J. Zhao, L. Zhao, Ling Zhao, S. Zhao, F. Zheng, Y. Zheng, B. Zhou, Haohui Zhou, Jia-Neng Zhou, Pengcheng Zhou, R. Zhou, X. Zhou, C. Zhu, F. Zhu, H. Zhu, K. Zhu, X. Zuo   +248 more
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