Results 1 to 10 of about 1,855,348 (303)

A PAN-CARINA YOUNG STELLAR OBJECT CATALOG: INTERMEDIATE-MASS YOUNG STELLAR OBJECTS IN THE CARINA NEBULA IDENTIFIED VIA MID-INFRARED EXCESS EMISSION [PDF]

, 2011
We present a catalog of 1439 young stellar objects (YSOs) spanning the 1.42 deg2 field surveyed by the Chandra Carina Complex Project (CCCP), which includes the major ionizing clusters and the most active sites of ongoing star formation within the Great ...
Matthew S. Povich, Nathan Smith, Steven R. Majewski, Konstantin V. Getman, Leisa K. Townsley, B. Babler, Patrick S. Broos, R. Indebetouw, M. R. Meade, Thomas Robitaille, Keivan G. Stassun, B. A. Whitney, Yoshinori Yonekura, Y. Fukui   +13 more
openalex   +3 more sources

On the variability of the GeV and multi-TeV gamma-ray emission from the Crab nebula [PDF]

, 2011
Recently, the AGILE γ -ray telescope has reported enhanced γ -ray emission above 100 MeV from the direction of the Crab nebula during a period of a few days. This intriguing observation has been confirmed by the Fermi Large Area Telescope (LAT).
W. Bednarek, W. Idec
openalex   +3 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

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
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

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

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
semanticscholar   +1 more source

The Spatial and Emission Properties of the Large [O iii] Emission Nebula Near M31

The Astrophysical Journal, 2023
Drechsler et al. reported the unexpected discovery of a 1.°5 long [O iii ] emission nebula 1.°2 southeast of the M31 nucleus. Here we present additional images of this large emission arc, called the Strottner–Drechsler–Sainty Object (SDSO), along with ...
Robert A. Fesen, Stefan Kimeswenger, J. Michael Shull, Marcel Drechsler, Xavier Strottner, Yann Sainty, Bray Falls, Christophe Vergnes, Nicolas Martino, Sean Walker, Justin Rupert   +10 more
doaj   +1 more source

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
semanticscholar   +1 more source