NOBUHIRO OKABE

Last Updated :2021/04/06

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Associate Professor
Web Site
E-mail
okabehiroshima-u.ac.jp

Basic Information

Academic Degrees

  • Master of Science, TOHOKU UNIVERSITY
  • Doctor of Science, TOHOKU UNIVERSITY

Research Fields

  • Mathematical and physical sciences;Astronomy;Astronomy

Affiliated Academic Societies

  • The Astronomical Society of Japan

Educational Activity

Course in Charge

  1. 2021, Undergraduate Education, Second Semester, Mathematics for Physics D
  2. 2021, Undergraduate Education, First Semester, Special Study for Graduation A
  3. 2021, Undergraduate Education, Second Semester, Special Study for Graduation B
  4. 2021, Graduate Education (Master's Program) , First Semester, Seminar of Cosmology and Astrophysics
  5. 2021, Graduate Education (Master's Program) , Second Semester, Seminar of Cosmology and Astrophysics
  6. 2021, Graduate Education (Master's Program) , First Semester, Seminar in Physical Science
  7. 2021, Graduate Education (Master's Program) , Second Semester, Seminar in Physical Science
  8. 2021, Graduate Education (Master's Program) , 3Term, Introductory Course to Advanced Physics
  9. 2021, Graduate Education (Master's Program) , 2Term, Relativistic Cosmology
  10. 2021, Graduate Education (Master's Program) , 1Term, Exercise in Physics I
  11. 2021, Graduate Education (Master's Program) , 2Term, Exercise in Physics I
  12. 2021, Graduate Education (Master's Program) , 3Term, Exercise in Physics II
  13. 2021, Graduate Education (Master's Program) , 4Term, Exercise in Physics II
  14. 2021, Graduate Education (Master's Program) , 1Term, Special Exsecise in Physics A
  15. 2021, Graduate Education (Master's Program) , 2Term, Special Exsecise in Physics A
  16. 2021, Graduate Education (Master's Program) , 3Term, Special Exsecise in Physics B
  17. 2021, Graduate Education (Master's Program) , 4Term, Special Exsecise in Physics B
  18. 2021, Graduate Education (Master's Program) , Academic Year, Special Research in Physics
  19. 2021, Graduate Education (Doctoral Program) , Academic Year, Special Research in Physics

Research Activities

Academic Papers

  1. Active gas features in three HSC-SSP CAMIRA clusters revealed by high angular resolution analysis of MUSTANG-2 SZE and XXL X-ray observations, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 501(2), 1701-1732, 202102
  2. Discovery of a supercluster in the eROSITA Final Equatorial Depth Survey: X-ray properties, radio halo, and double relics, ASTRONOMY & ASTROPHYSICS, 647, 2021
  3. Shapley supercluster survey: mapping the dark matter distribution, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 497(1), 52-66, 202009
  4. An expanded catalogue of low surface brightness galaxies in the Coma cluster using Subaru/Suprime-Cam, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 496(3), 3182-3197, 202008
  5. XXL Survey groups and clusters in the Hyper Suprime-Cam Survey. Scaling relations between X-ray properties and weak lensing mass, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 492(3), 4528-4545, 202003
  6. X-ray properties of high-richness CAMIRA clusters in the Hyper Suprime-Cam Subaru Strategic Program field, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 72(1), 202002
  7. X-ray study of the double source plane gravitational lens system Eye of Horus observed with XMM-Newton, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 491(3), 3411-3418, 202001
  8. Weak-lensing Analysis of X-Ray-selected XXL Galaxy Groups and Clusters with Subaru HSC Data, ASTROPHYSICAL JOURNAL, 890(2), 2020
  9. Second data release of the Hyper Suprime-Cam Subaru Strategic Program, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 71(6), 201912
  10. Free-form GRALE reconstruction of Abell 2744: robustness of uncertainties against changes in lensing data, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 488(3), 3251-3261, 201909
  11. ★, Halo concentration, galaxy red fraction, and gas properties of optically defined merging clusters, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 71(4), 201908
  12. Detection of anti-correlation of hot and cold baryons in galaxy clusters, NATURE COMMUNICATIONS, 10, 20190702
  13. Weak-lensing Mass Calibration of ACTPol Sunyaev-Zel'dovich Clusters with the Hyper Suprime-Cam Survey, ASTROPHYSICAL JOURNAL, 875(1), 20190410
  14. LoCuSS: scaling relations between galaxy cluster mass, gas, and stellar content, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 484(1), 60-80, 201903
  15. The Galaxy Cluster Mass Scale and Its Impact on Cosmological Constraints from the Cluster Population, SPACE SCIENCE REVIEWS, 215(2), 201902
  16. Halo Concentrations and the Fundamental Plane of Galaxy Clusters, GALAXIES, 7(1), 20190102
  17. The Physics of Galaxy Cluster Outskirts, SPACE SCIENCE REVIEWS, 215(1), 201901
  18. Origins of ultradiffuse galaxies in the Coma cluster - II. Constraints from their stellar populations, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 479(4), 4891-4906, 201810
  19. Origins of ultradiffuse galaxies in the Coma cluster - I. Constraints from velocity phase space, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 479(3), 3308-3318, 201809
  20. A New Interpretation of the Mass-Temperature Relation and Mass Calibration of Galaxy Clusters Based on the Fundamental Plane, ASTROPHYSICAL JOURNAL, 863(1), 20180810
  21. Inside a Beehive: The Multiple Merging Processes in the Galaxy Cluster Abell 2142, ASTROPHYSICAL JOURNAL, 863(1), 20180810
  22. LoCuSS: The infall of X-ray groups on to massive clusters, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 477(4), 4931-4950, 201807
  23. ATCA 16 cm observation of CIZA J1358.9-4750: Implication of merger stage and constraint on non-thermal properties, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 70(3), 201806
  24. Discovery of a New Fundamental Plane Dictating Galaxy Cluster Evolution from Gravitational Lensing, ASTROPHYSICAL JOURNAL, 857(2), 20180420
  25. Source selection for cluster weak lensing measurements in the Hyper Suprime-Cam survey, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 70(2), 201803
  26. SDSS-IV MaNGA: Uncovering the Angular Momentum Content of Central and Satellite Early-type Galaxies, ASTROPHYSICAL JOURNAL, 852(1), 20180101
  27. The Hyper Suprime-Cam SSP Survey: Overview and survey design, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 70, 201801
  28. First data release of the Hyper Suprime-Cam Subaru Strategic Program, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 70, 2018
  29. An optically-selected cluster catalog at redshift 0.1 < z < 1.1 from the Hyper Suprime-Cam Subaru Strategic Program S16A data, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 70, 2018
  30. Multiwavelength study of X-ray luminous clusters in the Hyper Suprime-Cam Subaru Strategic Program S16A field, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 70, 2018
  31. The first-year shear catalog of the Subaru Hyper Suprime-Cam Subaru Strategic Program Survey, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 70, 2018
  32. Two- and three-dimensional wide-field weak lensing mass maps from the Hyper Suprime-Cam Subaru Strategic Program S16A data, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 70, 2018
  33. A large sample of shear-selected clusters from the Hyper Suprime-Cam Subaru Strategic Program S16A Wide field mass maps, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 70, 2018
  34. SDSS-IV MaNGA: Probing the Kinematic Morphology-Density Relation of Early-type Galaxies with MaNGA, ASTROPHYSICAL JOURNAL LETTERS, 851(2), 20171220
  35. The XXL survey: First results and future, ASTRONOMISCHE NACHRICHTEN, 338(2-3), 334-341, 2017
  36. Galaxy cluster luminosities and colours, and their dependence on cluster mass and merger state, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 472(3), 3246-3255, 2017
  37. LoCuSS: exploring the selection of faint blue background galaxies for cluster weak-lensing, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 463(4), 4004-4018, 201612
  38. ★, LoCuSS: weak-lensing mass calibration of galaxy clusters, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 461(4), 3794-3821, 20161001
  39. X-ray observations of a subhalo associated with the NGC 4839 group infalling toward the Coma cluster, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 68(5), 201610
  40. BUDHIES - III: the fate of HI and the quenching of galaxies in evolving environments, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 461(2), 1202-1221, 20160911
  41. Central mass profiles of the nearby cool-core galaxy clusters Hydra A and A478, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 456(4), 4475-4487, 20160311
  42. LoCuSS: Testing hydrostatic equilibrium in galaxy clusters, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 456(1), L74-L78, 20160211
  43. FRONTIER FIELDS: SUBARU WEAK-LENSING ANALYSIS OF THE MERGING GALAXY CLUSTER A2744, ASTROPHYSICAL JOURNAL, 817(1), 20160120
  44. LoCuSS: exploring the selection of faint blue background galaxies for cluster weak-lensing, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 463(4), 4004-4018, 2016
  45. Detection of universality of dark matter profile from Subaru weak lensing measurements of 50 massive clusters, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 67(6), 201512
  46. Radio relics tracing the projected mass distribution in CIZA J2242.8+5301, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 67(6), 201512
  47. Testing a generalized cubic Galileon gravity model with the Coma Cluster, JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 201510
  48. THREE-DIMENSIONAL MULTI-PROBE ANALYSIS OF THE GALAXY CLUSTER A1689, ASTROPHYSICAL JOURNAL, 806(2), 20150620
  49. LoCuSS: THE SLOW QUENCHING OF STAR FORMATION IN CLUSTER GALAXIES AND THE NEED FOR PRE-PROCESSING, ASTROPHYSICAL JOURNAL, 806(1), 20150610
  50. SUZAKU OBSERVATIONS OF SUBHALOS IN THE COMA CLUSTER, ASTROPHYSICAL JOURNAL, 806(1), 2015
  51. Shapley Supercluster Survey: Galaxy evolution from filaments to cluster cores, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 446(1), 803-822, 2015
  52. Can we use weak lensing to measure total mass profiles of galaxies on 20 kpc scales?, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 449(2), 2128-2143, 2015
  53. ★, Universal profiles of the intracluster medium from Suzaku X-ray and Subaru weak-lensing observations, Publications of the Astronomical Society of Japan, 66(5), 20140101
  54. LoCuSS: the near-infrared luminosity and weak-lensing mass scaling relation of galaxy clusters, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 443(4), 3309-3317, 2014
  55. ★, SUBARU WEAK-LENSING SURVEY OF DARK MATTER SUBHALOS IN THE COMA CLUSTER: SUBHALO MASS FUNCTION AND STATISTICAL PROPERTIES, ASTROPHYSICAL JOURNAL, 784(2), 2014
  56. Star formation in the massive cluster merger Abell 2744, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 442(1), 196-206, 2014
  57. SUZAKU OBSERVATIONS OF THE OUTSKIRTS OF A1835: DEVIATION FROM HYDROSTATIC EQUILIBRIUM, ASTROPHYSICAL JOURNAL, 766(2), 2013
  58. LoCuSS: THE MASS DENSITY PROFILE OF MASSIVE GALAXY CLUSTERS AT z=0.2, ASTROPHYSICAL JOURNAL LETTERS, 769(2), 2013
  59. Discovery of an Outstanding Disk in the cD Galaxy of the Hydra A Cluster, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 65(6), 2013
  60. Suzaku Observations of the Hydra A Cluster out to the Virial Radius, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 64(5), 2012
  61. LoCuSS: THE SUNYAEV-ZEL'DOVICH EFFECT AND WEAK-LENSING MASS SCALING RELATION, ASTROPHYSICAL JOURNAL, 754(2), 2012
  62. LoCuSS: A Dynamical Analysis of X-Ray Active Galactic Nuclei in Local Clusters, Astrophysical Journal, 754(2), id. 97, 2012
  63. LoCuSS: comparison of observed X-ray and lensing galaxy cluster scaling relations with simulations (vol 482, pg 451, 2008), ASTRONOMY & ASTROPHYSICS, 527, 2011
  64. Suzaku X-Ray Follow-Up Observation of Weak-Lensing-Detected Halos in the Field around ZwCl 0823.2+0425, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 63(2), 357-366, 2011
  65. Creation of cosmic structure in the complex galaxy cluster merger Abell 2744, Monthly Notices of the Royal Astronomical Societ, 417, 333-347, 2011
  66. Subaru weak-lensing study of A2163: bimodal mass structure, 741(2), 116, 2011
  67. ★, LoCuSS : Subaru Weak Lensing Study of 30 Galaxy Clusters, Publications of the Astronomical Society of Japan, 62(3), 811-870, 20100625
  68. The Mass Structure of the Galaxy Cluster Cl0024+1654 from a Full Lensing Analysis of Joint Subaru and ACS/NIC3 Observations, Astrophysical Journal, 714(2), 1470-1496-1470-1496, 201005
  69. SUZAKU OBSERVATION OF A1689: ANISOTROPIC TEMPERATURE AND ENTROPY DISTRIBUTIONS ASSOCIATED WITH THE LARGE-SCALE STRUCTURE, ASTROPHYSICAL JOURNAL, 714(1), 423-441, 2010
  70. LoCuSS: A COMPARISON OF CLUSTER MASS MEASUREMENTS FROM XMM-NEWTON AND SUBARU-TESTING DEVIATION FROM HYDROSTATIC EQUILIBRIUM AND NON-THERMAL PRESSURE SUPPORT, ASTROPHYSICAL JOURNAL, 711(2), 1033-1043, 2010
  71. WEAK-LENSING MASS MEASUREMENTS OF SUBSTRUCTURES IN COMA CLUSTER WITH SUBARU/SUPRIME-CAM, ASTROPHYSICAL JOURNAL, 713(1), 291-303, 2010
  72. Direct measurement of dark matter halo ellipticity from two-dimensional lensing shear maps of 25 massive clusters, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 405(4), 2215-2230, 2010
  73. LoCuSS: Probing galaxy transformation physics with Herschel, ASTRONOMY & ASTROPHYSICS, 518, 2010
  74. LoCuSS: CALIBRATING MASS-OBSERVABLE SCALING RELATIONS FOR CLUSTER COSMOLOGY WITH SUBARU WEAK-LENSING OBSERVATIONS, ASTROPHYSICAL JOURNAL, 721(1), 875-885, 2010
  75. LoCuSS: A Herschel view of obscured star formation in Abell 1835, Astronomy and Astrophysics, 518, L40, 2010
  76. LoCuSS: luminous infrared galaxies in the merging cluster Abell 1758 at z=0.28, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 396(3), 1297-1307, 2009
  77. Suzaku Observation of the Ophiuchus Galaxy Cluster : One of the Hottest Cool Core Clusters, Publications of the Astronomical Society of Japan, 60(5), 1133-1142, 20081025
  78. ★, Subaru Weak Lensing Study of Seven Merging Clusters : Distributions of Mass and Baryons, Publications of the Astronomical Society of Japan, 60(2), 345-375, 20080425
  79. High Metallicity of the X-Ray Gas Up to the Virial Radius of a Binary Cluster of Galaxies : Evidence of Galactic Superwinds at High-Redshift, Publications of the Astronomical Society of Japan, 60(1), S343-S349, 20080220
  80. LoCuSS: Comparison of observed X-ray and lensing galaxy cluster scaling relations with simulations, ASTRONOMY & ASTROPHYSICS, 482(2), 451-U51, 2008
  81. Magnetic field generation by the Weibel instability at temperature gradients in collisionless plasmas, Phys. Plasmas, 13(12), 122901-122901-6-122901-122901-6, 2006
  82. A direct method for measuring heat conductivity in intracluster medium, ASTROPHYSICAL JOURNAL, 625(2), 741-747, 2005
  83. Spontaneous generation of the magnetic field and suppression of the heat conduction in cold fronts, ASTROPHYSICAL JOURNAL, 599(2), 964-970, 2003
  84. LoCuSS: hydrostatic mass measurements of the high-LX cluster sample - cross-calibration of Chandra and XMM-Newton, Monthly Notices of the Royal Astronomical Society, 443(3), 2342-2360-2342-2360, 2014

Publications such as books

  1. 2019/10/17, Clusters of Galaxies: Physics and Cosmology (Space Sciences Series of ISSI), Scholarly Book, Joint work, English, 978-9402417333

Awards

  1. 2013, PASJ Excellent Paper Award, the Publications of the Astronomical Society of Japan., LoCuSS: Subaru Weak Lensing Study of 30 Galaxy Clusters
  2. 2017/11/04, Phoenix Outstanding Researcher Award, Hiroshima Univ.

Social Activities

History as Peer Reviews of Academic Papers

  1. 2017, The astronomical herald, Editor
  2. 2018, The astronomical herald, Editor
  3. 2019, The astronomical herald, Editor
  4. 2020, The astronomical herald, Editor