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

Journal Article · · Publications of the Astronomical Society of Japan
DOI:https://doi.org/10.1093/pasj/psx083· OSTI ID:1458447
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  1. Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland
  2. SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
  3. Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
  4. Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA; Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA; SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
  5. NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
  6. Department of Astronomy, University of Geneva, ch. d’Écogia 16, CH-1290 Versoix, Switzerland
  7. Department of Physics, Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577
  8. Department of Physics and Oskar Klein Center, Stockholm University, 106 91 Stockholm, Sweden
  9. Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Research Center for the Early Universe, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
  10. Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
  11. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
  12. Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA
  13. Department of Physics and Astronomy, Wayne State University, 666 W. Hancock St, Detroit, MI 48201, USA
  14. Department of Physics, Yale University, New Haven, CT 06520-8120, USA; Department of Astronomy, Yale University, New Haven, CT 06520-8101, USA
  15. Centre for Extragalactic Astronomy, Department of Physics, University of Durham, South Road, Durham, DH1 3LE, UK
  16. Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210, Japan
  17. Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, Kyoto 606-8502, Japan; The Hakubi Center for Advanced Research, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto, Kyoto 606-8501, Japan
  18. Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
  19. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK
  20. Faculty of Mathematics and Physics, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
  21. School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
  22. Fujita Health University, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
  23. Physics Department, University of Miami, 1320 Campo Sano Dr., Coral Gables, FL 33146, USA
  24. Department of Astronomy and Physics, Saint Mary’s University, 923 Robie Street, Halifax, NS, B3H 3C3, Canada
  25. Department of Physics and Astronomy, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
  26. Laboratoire APC, 10 rue Alice Domon et Léonie Duquet, 75013 Paris, France; CEA Saclay, 91191 Gif sur Yvette, France
  27. European Space Research and Technology Center, Keplerlaan 1 2201 AZ Noordwijk, The Netherlands
  28. Department of Physics and Astronomy, Aichi University of Education, 1 Hirosawa, Igaya-cho, Kariya, Aichi 448-8543, Japan
  29. NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA; Department of Physics, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA
  30. Department of Applied Physics and Electronic Engineering, University of Miyazaki, 1-1 Gakuen Kibanadai-Nishi, Miyazaki, Miyazaki 889-2192, Japan
  31. Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
  32. Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
  33. Department of Physics, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
  34. Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
  35. Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, NJ 08854, USA
  36. Meisei University, 2-1-1 Hodokubo, Hino, Tokyo 191-8506, Japan
  37. SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands; Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands
  38. Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
  39. Research Institute for Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
  40. Department of Physics, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
  41. Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
  42. Department of Physics, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
  43. Department of Physics, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
  44. Department of Physics, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, Kyoto 606-8502, Japan
  45. European Space Astronomy Center, Camino Bajo del Castillo, s/n., 28692 Villanueva de la Cañada, Madrid, Spain
  46. Universities Space Research Association, 7178 Columbia Gateway Drive, Columbia, MD 21046, USA; National Science Foundation, 4201 Wilson Blvd, Arlington, VA 22230, USA
  47. Department of Electronic Information Systems, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama, Saitama 337-8570, Japan
  48. Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, Kyoto 606-8502, Japan
  49. CEA Saclay, 91191 Gif sur Yvette, France
  50. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
  51. Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA
  52. Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
  53. Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
  54. Department of Physics, University of Wisconsin, Madison, WI 53706, USA
  55. Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
  56. Department of Astronomy, University of Michigan, 1085 South University Avenue, Ann Arbor, MI 48109, USA
  57. Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
  58. Faculty of Liberal Arts, Tohoku Gakuin University, 2-1-1 Tenjinzawa, Izumi-ku, Sendai, Miyagi 981-3193, Japan
  59. Department of Astronomy, University of Maryland, College Park, MD 20742, USA
  60. Faculty of Science, Yamagata University, 1-4-12 Kojirakawa-machi, Yamagata, Yamagata 990-8560, Japan
  61. Department of Physics, Nara Women’s University, Kitauoyanishi-machi, Nara, Nara 630-8506, Japan
  62. Department of Teacher Training and School Education, Nara University of Education, Takabatake-cho, Nara, Nara 630-8528, Japan
  63. Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramakiazaaoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan; Astronomical Institute, Tohoku University, 6-3 Aramakiazaaoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
  64. SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
  65. Department of Physics, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama, Saitama 338-8570, Japan
  66. Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, NY 10027, USA
  67. Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
  68. Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
  69. Astronomical Observatory of Jagiellonian University, ul. Orla 171, 30-244 Kraków, Poland
  70. Department of Physics, Yale University, New Haven, CT 06520-8120, USA
  71. Max Planck Institute for Extraterrestrial Physics, Giessenbachstrasse 1, 85748 Garching , Germany
  72. NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA; Department of Astronomy, University of Maryland, College Park, MD 20742, USA
  73. Faculty of Education, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, Shizuoka 422-8529, Japan
  74. Faculty of Health Sciences, Nihon Fukushi University, 26-2 Higashi Haemi-cho, Handa, Aichi 475-0012, Japan
  75. MTA-Eötvös University Lendület Hot Universe Research Group, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary; Department of Theoretical Physics and Astrophysics, Faculty of Science, Masaryk University, Kotlářská 2, Brno, 611 37, Czech Republic; School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
  76. Department of Physics, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA
  77. Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA; Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA
  78. Kashima Space Technology Center, National Institute of Information and Communications Technology, Kashima, Ibaraki 314-8501, Japan
  79. Planetary Plasma and Atmospheric Research Center, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
  80. The Research Institute for Time Studies, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan
+ Show Author Affiliations

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 observatory in the 1.4 – 1.7 GHz band with a net exposure of about 2 ks on 25 March 2016, just before the loss of the Hitomi mission. The timing performance of the Hitomi instruments was confirmed to meet the timing requirement and about 1,000 and 100 GRPs were simultaneously observed at the main 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 or inter-pulse phases. 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- 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 become 25% or 110% for main or inter-pulse GRPs, respectively, when the phase width is restricted into the 0.03 phase. Among the upper limits from the Hitomi satellite, those in the 4.5-10 keV and the 70- 300 keV are obtained for the first time, and those in other bands are consistent with previous reports. Numerically, the upper limits of main- and inter-pulse GRPs in the 0.20 phase width are about (2.4 and 9.3) ×10-11 erg cm-2, respectively. No significant variability in pulse profiles implies that the GRPs originated from a local place within the magnetosphere and the number of photon-emitting particles temporally increases. However, 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.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Contributing Organization:
Hitomi Collaboration
Grant/Contract Number:
AC02-76SF00515; 15H00773; 15H00785; 15H02090; 15H03639; 15K05088; 15K05069; 15H05438; 15K05107; 15K17610; 15K17657; 16J02333; 16J06773; 16H00949; 16H06342; 16K05295; 16K05296; 16K05300; 16K13787; 16K17672; 16K17673; 17H02864; 17K05393; 21659292; 23340055; 23340071; 23540280; 24105007; 24540232; 25105516; 25109004; 25247028; 25287042; 25400236; 25800119; 26109506; 26220703; 26400228; 26610047; 26800102; JP15H02070; JP15H03641; JP15H03642; JP15H06896; JP16H03983; JP16K05296; JP16K05309; JP16K17667; NNX15AC76G; NNX15AE16G; NNX15AK71G; NNX15AU54G; NNX15AW94G; NNG15PP48P; ST/L00075X/1; 340442; ST/J003697/2; PF6-170160
OSTI ID:
1458447
Journal Information:
Publications of the Astronomical Society of Japan, Vol. 70, Issue 2; ISSN 0004-6264
Publisher:
Astronomical Society of JapanCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

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Observational diversity of magnetized neutron stars journal September 2019

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