Hitomi X-ray studies of giant radio pulses from the Crab pulsar

被引：6

作者：

Aharonian, Felix ^{[1
]}

Akamatsu, Hiroki ^{[2
]}

Akimoto, Fumie ^{[3
]}

Allen, Steven W. ^{[4
,5
,6
]}

Angelini, Lorella ^{[7
]}

Audard, Marc ^{[8
]}

Awaki, Hisamitsu ^{[9
]}

Axelsson, Magnus ^{[10
,11
]}

Bamba, Aya ^{[12
,13
]}

Bautz, Marshall W. ^{[14
]}

Blandford, Roger ^{[4
,5
,6
]}

Brenneman, Laura W. ^{[15
]}

Brown, Gregory, V ^{[16
]}

Bulbul, Esra ^{[14
]}

Cackett, Edward M. ^{[17
]}

Chernyakova, Maria ^{[1
]}

Chiao, Meng P. ^{[7
]}

Coppi, Paolo S. ^{[18
,19
]}

Costantini, Elisa ^{[2
]}

De Plaa, Jelle ^{[2
]}

De Vries, Cor P. ^{[2
]}

Den Herder, Jan-Willem ^{[2
]}

Done, Chris ^{[20
]}

Dotani, Tadayasu ^{[21
]}

Ebisawa, Ken ^{[21
]}

Eckart, Megan E. ^{[7
]}

Enoto, Teruaki ^{[22
,23
]}

Ezoe, Yuichiro ^{[24
]}

Fabian, Andrew C. ^{[25
]}

Ferrigno, Carlo ^{[8
]}

Foster, Adam R. ^{[15
]}

Fujimoto, Ryuichi ^{[26
]}

Fukazawa, Yasushi ^{[27
]}

Furuzawa, Akihiro ^{[28
]}

Galeazzi, Massimiliano ^{[29
]}

Gallo, Luigi C. ^{[30
]}

Gandhi, Poshak ^{[31
]}

Giustini, Margherita ^{[2
]}

Goldwurm, Andrea ^{[32
,33
]}

Gu, Liyi ^{[2
]}

Guainazzi, Matteo ^{[34
]}

Haba, Yoshito ^{[35
]}

Hagino, Kouichi ^{[21
]}

Hamaguchi, Kenji ^{[7
,36
]}

Harrus, Ilana M. ^{[7
,36
]}

Hatsukade, Isamu ^{[37
]}

Hayashi, Katsuhiro ^{[21
]}

Hayashi, Takayuki ^{[38
]}

Hayashida, Kiyoshi ^{[39
]}

Hiraga, Junko S. ^{[40
]}

机构：

[1] Dublin Inst Adv Studies, 31 Fitzwilliam Pl, Dublin 2, Ireland

[2] SRON Netherlands Inst Space Res, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands

[3] Nagoya Univ, Inst Space Earth Environm Res, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648601, Japan

[4] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, 452 Lomita Mall, Stanford, CA 94305 USA

[5] Stanford Univ, Dept Phys, 382 Via Pueblo Mall, Stanford, CA 94305 USA

[6] SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA

[7] NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA

[8] Univ Geneva, Dept Astron, Ch Ec 16, CH-1290 Versoix, Switzerland

[9] Ehime Univ, Dept Phys, 2-5 Bunkyo Cho, Matsuyama, Ehime 7908577, Japan

[10] Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden

[11] Stockholm Univ, Oskar Klein Ctr, S-10691 Stockholm, Sweden

[12] Univ Tokyo, Dept Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan

[13] Univ Tokyo, Res Ctr Early Universe, Sch Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan

[14] MIT, Kavli Inst Astrophys & Space Res, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[15] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

[16] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA

[17] Wayne State Univ, Dept Phys & Astron, 666 W Hancock St, Detroit, MI 48201 USA

[18] Yale Univ, Dept Phys, New Haven, CT 06520 USA

[19] Yale Univ, Dept Astron, New Haven, CT 06520 USA

[20] Univ Durham, Ctr Extragalact Astron, Dept Phys, South Rd, Durham DH1 3LE, England

[21] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Chuo Ku, 3-1-1 Yoshino Dai, Sagamihara, Kanagawa 2525210, Japan

[22] Kyoto Univ, Dept Astron, Sakyo Ku, Kitashirakawa Oiwake Cho, Kyoto, Kyoto 6068502, Japan

[23] Kyoto Univ, Hakubi Ctr Adv Res, Sakyo Ku, Yoshida Honmachi, Kyoto, Kyoto 6068501, Japan

[24] Tokyo Metropolitan Univ, Dept Phys, 1-1 Minami Osawa, Hachioji, Tokyo 1920397, Japan

[25] Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England

[26] Kanazawa Univ, Fac Math & Phys, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan

[27] Hiroshima Univ, Sch Sci, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 7398526, Japan

[28] Fujita Hlth Univ, 1-98 Dengakugakubo,Kutsukake Cho, Toyoake, Aichi 4701192, Japan

[29] Univ Miami, Phys Dept, 1320 Campo Sano Dr, Coral Gables, FL 33146 USA

[30] St Marys Univ, Dept Astron & Phys, 923 Robie St, Halifax, NS B3H 3C3, Canada

[31] Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England

[32] Lab APC, 10 Rue Alice Domon & Leonie Duquet, F-75013 Paris, France

[33] CEA Saclay, F-91191 Gif Sur Yvette, France

[34] European Space Technol Ctr, Keplerlaan 1, NL-2201 AZ Noordwijk, Netherlands

[35] Aichi Univ Educ, Dept Phys & Astron, 1 Hirosawa,Igaya Cho, Kariya, Aichi 4488543, Japan

[36] Univ Maryland Baltimore Cty, Dept Phys, 1000 Hilltop Circle, Baltimore, MD 21250 USA

[37] Univ Miyazaki, Dept Appl Phys & Elect Engn, 1 Gakuen Kibanadai Nishi, Miyazaki, Miyazaki 8892192, Japan

[38] Nagoya Univ, Dept Phys, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648602, Japan

[39] Osaka Univ, Dept Earth & Space Sci, 1-1 Machikaneyama Cho, Toyonaka, Osaka 5600043, Japan

[40] Kwansei Gakuin Univ, Dept Phys, 2-1 Gakuen, Sanda, Hyogo 6691337, Japan

[41] Rikkyo Univ, Dept Phys, Toshima Ku, 3-34-1 Nishi Ikebukuro, Tokyo 1718501, Japan

[42] Rutgers State Univ, Dept Phys & Astron, 136 Frelinghuysen Rd, Piscataway, NJ 08854 USA

[43] Meisei Univ, 2-1-1 Hodokubo, Hino, Tokyo 1918506, Japan

[44] Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands

[45] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, 3-4-1 Ohkubo, Tokyo 1698555, Japan

[46] Chuo Univ, Dept Phys, Bunkyo Ku, 1-13-27 Kasuga, Tokyo 1128551, Japan

[47] Tokyo Inst Technol, Dept Phys, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528550, Japan

[48] Toho Univ, Dept Phys, 2-2-1 Miyama, Funabashi, Chiba 2748510, Japan

[49] Tokyo Univ Sci, Dept Phys, 2641 Yamazaki, Noda, Chiba 2788510, Japan

[50] Kyoto Univ, Dept Phys, Sakyo Ku, Kitashirakawa Oiwake Cho, Kyoto, Kyoto 6068502, Japan

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2018年 / 70卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

pulsars: individual (B0531+21); radio continuum: stars; X-rays: stars; EMISSION; BURSTS; SEARCH;

D O I：

10.1093/pasj/psx083

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

To search for giant X-ray pulses correlated with the giant radio pulses (GRPs) from the Crab pulsar, we performed a simultaneous observation of the Crab pulsar with the X-ray satellite Hitomi in the 2-300 keV band and the Kashima NICT radio telescope in the 1.4-1.7 GHz band with a net exposure of about 2 ks on 2016 March 25, just before the loss of the Hitomi mission. The timing performance of the Hitomi instruments was confirmed to meet the timing requirement and about 1000 and 100 GRPs were simultaneously observed at the main pulse and inter-pulse phases, respectively, and we found no apparent correlation between the giant radio pulses and the X-ray emission in either the main pulse or inter-pulse phase. All variations are within the 2 sigma fluctuations of the X-ray fluxes at the pulse peaks, and the 3 sigma upper limits of variations of main pulse or inter-pulse GRPs are 22% or 80% of the peak flux in a 0.20 phase width, respectively, in the 2-300 keV band. The values for main pulse or inter-pulse GRPs become 25% or 110%, respectively, when the phase width is restricted to the 0.03 phase. Among the upper limits from the Hitomi satellite, those in the 4.5-10 keV and 70-300 keV bands are obtained for the first time, and those in other bands are consistent with previous reports. Numerically, the upper limits of the main pulse and inter-pulse GRPs in the 0.20 phase width are about (2.4 and 9.3) x 10(-11) erg cm(-2), respectively. No significant variability in pulse profiles implies that the GRPs originated from a local place within the magneto-sphere. Although the number of photon-emitting particles should temporarily increase to account for the brightening of the radio emission, the results do not statistically rule out variations correlated with the GRPs, because the possible X-ray enhancement may appear due to a > 0.02% brightening of the pulse-peak flux under such conditions.

引用

页数：18

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