Efficient acceleration of cylindrical jets: effects of radiative cooling and tangled magnetic field

Autor: Shuta J. Tanaka, Kenji Toma

Publikováno v: Monthly Notices of the Royal Astronomical Society. 494:338-348

Diverging supersonic flows are accelerating, as in the case of a de Laval nozzle, and the same concept has been applied for acceleration of magnetohydrodynamic flows in the universe. Here, we study the dynamics of "non-diverging" cylindrical superson

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3223aeb10e728c30fe4f613c59bc1d1d
https://doi.org/10.1093/mnras/staa728

Enhanced x-ray emission coinciding with giant radio pulses from the Crab Pulsar

Autor: Keith C. Gendreau, Alice K. Harding, Slavko Bogdanov, Yoshinori Yonekura, Hiroaki Misawa, Takahiko Aoki, Sebastien Guillot, Zaven Arzoumanian, Tomoaki Oyama, Steve Kenyon, Kazuhiro Takefuji, Zorawar Wadiasingh, Tolga Guver, R. S. Foster, Mamoru Sekido, Katsuaki Asano, Christian Malacaria, Shuta J. Tanaka, Yang Soong, Craig B. Markwardt, Takashi Okajima, Shota Kisaka, Natalia Lewandowska, Chin-Ping Hu, Fuminori Tsuchiya, Paul S. Ray, Hiroshi Takeuchi, Teruaki Enoto, Toshio Terasawa, Shinpei Shibata, Osamu Kameya, Munetoshi Tokumaru, Gaurava K. Jaisawal, Mareki Honma, Wynn C. G. Ho, Yasuhiro Murata, Walid A. Majid

Publikováno v: Enoto, T, Terasawa, T, Kisaka, S, Hu, C-P, Guillot, S, Lewandowska, N, Malacaria, C, Ray, P S, Ho, W C G, Harding, A K, Okajima, T, Arzoumanian, Z, Gendreau, K C, Wadiasingh, Z, Markwardt, C B, Soong, Y, Kenyon, S, Bogdanov, S, Majid, W A, Güver, T, Jaisawal, G K, Foster, R, Murata, Y, Takeuchi, H, Takefuji, K, Sekido, M, Yonekura, Y, Misawa, H, Tsuchiya, F, Aoki, T, Tokumaru, M, Honma, M, Kameya, O, Oyama, T, Asano, K, Shibata, S & Tanaka, S J 2021, ' Enhanced x-ray emission coinciding with giant radio pulses from the Crab Pulsar ', Science, vol. 372, no. 6538, pp. 187-190 . https://doi.org/10.1126/science.abd4659
Science
Science, 2021, 372 (6538), pp.187-190. ⟨10.1126/science.abd4659⟩

Giant radio pulses (GRPs) are sporadic bursts emitted by some pulsars, lasting a few microseconds. GRPs are hundreds to thousands of times brighter than regular pulses from these sources. The only GRP-associated emission outside radio wavelengths is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96ab82417c6e446c015259dcbbe915d5
https://orbit.dtu.dk/en/publications/86bb3f49-35b6-413e-8719-08bc56b7d141

Toward experimental observations of induced Compton scattering by high-power laser facilities

Autor: Ryo Yamazaki, Yasuhiro Kuramitsu, Youichi Sakawa, Shuta J. Tanaka

Publikováno v: Progress of Theoretical and Experimental Physics. 2020

Induced Compton scattering (ICS) is a nonlinear interaction between intense electromagnetic radiation and a rarefied plasma. Although the magnetosphere of pulsars is a potential site at which ICS occurs in nature, ICS signatures have not been discove

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7553161ed2ca9021c7aa48a66bd1627b
https://doi.org/10.1093/ptep/ptaa064

Suzaku and Fermi view of the supernova remnant 3C 396

Autor: Nergis Cesur, A. Sezer, Shota Kisaka, Ryo Yamazaki, Shuta J. Tanaka, Yutaka Ohira, Tulun Ergin

Publikováno v: Monthly Notices of the Royal Astronomical Society, 492, 1, pp. 1484-1491
Monthly Notices of the Royal Astronomical Society, 492, 1484-1491

3C 396 is a composite supernova remnant (SNR), consisting of a central pulsar wind nebula (PWN) and a bright shell in the west, which is known to be interacting with molecular clouds (MCs). We present a study of X-ray emission from the shell and the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f79623f4fc5b136a7ca22074f7f3ce3f
https://hdl.handle.net/2066/216854

On the Radio Emitting Particles of the Crab Nebula: Stochastic Acceleration Model

Autor: Shuta J. Tanaka

Publikováno v: Proceedings of the International Astronomical Union. 13:259-262

The standard shock acceleration model of pulsar wind nebulae (PWNe) does not account for the hard spectrum in radio wavelengths. The origin of the radio-emitting particles is also important to determine the pair production efficiency in the pulsar ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9db420cc4667584899100725e3878930
https://doi.org/10.1017/s1743921317008754