Hajime Kawahara

(河原創)

Profile Information

Affiliation: Associate Professor, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
associate professor, Graduate School of Science Department of Astronomy, The University of Tokyo

Degree: 理学博士 (東京大学)

Researcher number: 90649758
J-GLOBAL ID: 201101032245656985
researchmap Member ID: B000003530

External link: http://www-sys.eps.s.u-tokyo.ac.jp/~kawahara/

I am currently working on characterization of exoplanets.

Research Interests

Research Areas

Natural sciences / Astronomy / 太陽系外惑星

Research History

Jul, 2022 - Present

associate professor, Dept. of Space Astronomy and Astrophysics, Japan Aerospace Exploration Agency
Nov, 2012 - Jun, 2022

Assistant Professor, Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo
Apr, 2010 - Oct, 2012

JSPS/PD (Tokyo Metropolitan University)
Apr, 2009 - Mar, 2010

JSPS/PD (The University of Tokyo)

Awards

Feb, 2018

欧⽂研究報告論⽂賞(2017), 日本天文学会

Akamatsu & Kawahara, Systematic X-Ray, Analysis of, Radio, Relic, Clusters, with Suzaku, No, article i, February
Jan, 2012

Martin and Beate Block Award, Aspen center for physics

Hajime Kawahara

Papers

Suzaku observations of the galaxy cluster 1RXS J0603.3+4214: Implications of particle acceleration processes in the "Toothbrush" radio relic

Madoka Itahana, Motokazu Takizawa, Hiroki Akamatsu, Takaya Ohashi, Yoshitaka Ishisaki, Hajime Kawahara, Reinout J. van Weeren

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 67(6) 113, Dec, 2015 Peer-reviewed
LIFETIME AND SPECTRAL EVOLUTION OF A MAGMA OCEAN WITH A STEAM ATMOSPHERE: ITS DETECTABILITY BY FUTURE DIRECT IMAGING

Keiko Hamano, Hajime Kawahara, Yutaka Abe, Masanori Onishi, George L. Hashimoto

ASTROPHYSICAL JOURNAL, 806(2) 216, Jun, 2015 Peer-reviewed
ABSOLUTE DIMENSIONS OF A FLAT HIERARCHICAL TRIPLE SYSTEM KIC 6543674 FROM THE KEPLER PHOTOMETRY

Kento Masuda, Sho Uehara, Hajime Kawahara

ASTROPHYSICAL JOURNAL LETTERS, 806(2) L37, Jun, 2015 Peer-reviewed
THEORETICAL EMISSION SPECTRA OF ATMOSPHERES OF HOT ROCKY SUPER-EARTHS

Yuichi Ito, Masahiro Ikoma, Hajime Kawahara, Hiroko Nagahara, Yui Kawashima, Taishi Nakamoto

ASTROPHYSICAL JOURNAL, 801(2) 144, Mar, 2015 Peer-reviewed
SPECTROSCOPIC CORONAGRAPHY FOR PLANETARY RADIAL VELOCIMETRY OF EXOPLANETS

Hajime Kawahara, Naoshi Murakami, Taro Matsuo, Takayuki Kotani

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 212(2) 27, Jun, 2014 Peer-reviewed
EXPLORING HOT GAS AT JUNCTIONS OF GALAXY FILAMENTS WITH SUZAKU

I. Mitsuishi, H. Kawahara, N. Sekiya, S. Sasaki, T. Sousbie, N. Y. Yamasaki

ASTROPHYSICAL JOURNAL, 783(2) 137, Mar, 2014 Peer-reviewed
Laboratory demonstration of the Savart-plate lateral-shearing interferometric nuller for exoplanets (SPLINE)

Hirofumi Kitou, Naoshi Murakami, Manabu Kida, Naoshi Baba, Taro Matsuo, Takayuki Kotani, Hajime Kawahara, Motohide Tamura

ADVANCES IN OPTICAL AND MECHANICAL TECHNOLOGIES FOR TELESCOPES AND INSTRUMENTATION, 9151, 2014 Peer-reviewed
High-Contrast Planet Imager for Kyoto 4m Segmented Telescope

Taro Matsuo, Naoshi Murakami, Takayuki Kotani, Hajime Kawahara, Noriaki Natsume, Masaru Kino, Kodai Yamamoto, Hiroaki Imada, Mikio Kurita, Masatsugu Iribe, Hideya Nishida, Manabu Kida, Hirofumi Kitou, Kumi Ishikawa, Yutaka Uda, Hitoshi Tokoro, Tetsuya Nagata, Fumihide Iwamuro, Noriaki Miura, Shin Oya, Yoichi Itoh, Hiroshi Shibai, Motohide Tamura

GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY V, 9147 91471V, 2014
Infrared Doppler instrument (IRD) for the Subaru telescope to search for Earth-like planets around nearby M-dwarfs

Takayuki Kotani, Motohide Tamura, Hiroshi Suto, Jun Nishikawa, Bun'ei Sato, Wak Aoki, Tomonori Usuda, Takashi Kurokawa, Ken Kashiwagi, Shogo Nishiyama, Yuji Ikeda, Donald B. Hall, Klaus W. Hodapp, Shane Jacobson, Jun Hashimoto, Jun-Ichi Morino, Yasushi Okuyama, Yoichi Tanaka, Shota Suzuki, Sadahiro Inoue, Jungmi Kwon, Takuya Suenaga, Dehyun Oh, Haruka Baba, Norio Narita, Eiichiro Kokubo, Yutaka Hayano, Hideyuki Izumiura, Eiji Kambe, Tomoyuki Kudo, Nobuhiko Kusakabe, Masahiro Ikoma, Yasunori Hori, Masashi Omiya, Hidenori Genda, Akihiko Fukui, Yuka Fujii, Olivier Guyon, Hiroki Harakawa, Masahiko Hayashi, Masahide Hidai, Teruyuki Hirano, Masayuki Kuzuhara, Masahiro Machida, Taro Matsuo, Tetsuya Nagata, Hirohi Onuki, Masahiro Ogihara, Hideki Takami, Naruhisa Takato, Yasuhiro H. Takahashi, Chihiro Tachinami, Hiroshi Terada, Hajime Kawahara, Tomoyasu Yamamuro

GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY V, 9147, 2014 Peer-reviewed
Starspots-transit depth relation of the evaporating planet candidate KIC 12557548b

Hajime Kawahara, Teruyuki Hirano, Kenji Kurosaki, Yuichi Ito, Masahiro Ikoma

Astrophysical Journal Letters, 776(1) L6, Oct 10, 2013 Peer-reviewed
Erratum: Colors of a second earth. II. Effect of clouds on photometric characterization of earth-like exoplanets (Astrophysical Journal (2011) 738 (184))

Yuka Fujii, Hajime Kawahara, Yasushi Suto, Satoru Fukuda, Teruyuki Nakajima, Timothy A. Livengood, Edwin L. Turner

Astrophysical Journal, 771(2), Jul 10, 2013 Peer-reviewed
Probing the extreme planetary atmosphere of WASP-12b

Mark Swain, Pieter Deroo, Giovanna Tinetti, Morgan Hollis, Marcell Tessenyi, Michael Line, Hajime Kawahara, Yuka Fujii, Adam P. Showman, Sergey N. Yurchenko

ICARUS, 225(1) 432-445, Jul, 2013
X-ray study of clusters at the outer edge and beyond

T. Ohashi, H. Akamatsu, H. Kawahara, N. Sekiya, Y. Takei

ASTRONOMISCHE NACHRICHTEN, 334(4-5) 325-328, May, 2013 Peer-reviewed
VALIDITY OF HYDROSTATIC EQUILIBRIUM IN GALAXY CLUSTERS FROM COSMOLOGICAL HYDRODYNAMICAL SIMULATIONS

Daichi Suto, Hajime Kawahara, Tetsu Kitayama, Shin Sasaki, Yasushi Suto, Renyue Cen

ASTROPHYSICAL JOURNAL, 767(1), Apr, 2013 Peer-reviewed
THE SPIN EFFECT ON PLANETARY RADIAL VELOCIMETRY OF EXOPLANETS

Hajime Kawahara

ASTROPHYSICAL JOURNAL LETTERS, 760(1) L13, Nov, 2012 Peer-reviewed
ORIGIN: metal creation and evolution from the cosmic dawn

Jan-Willem den Herder, Luigi Piro, Takaya Ohashi, Chryssa Kouveliotou, Dieter H. Hartmann, Jelle S. Kaastra, L. Amati, M. I. Andersen, M. Arnaud, J. -L. Atteia, S. Bandler, M. Barbera, X. Barcons, S. Barthelmy, S. Basa, S. Basso, M. Boer, E. Branchini, G. Branduardi-Raymont, S. Borgani, A. Boyarsky, G. Brunetti, C. Budtz-Jorgensen, D. Burrows, N. Butler, S. Campana, E. Caroli, M. Ceballos, F. Christensen, E. Churazov, A. Comastri, L. Colasanti, R. Cole, R. Content, A. Corsi, E. Costantini, P. Conconi, G. Cusumano, J. de Plaa, A. De Rosa, M. Del Santo, S. Di Cosimo, M. De Pasquale, R. Doriese, S. Ettori, P. Evans, Y. Ezoe, L. Ferrari, H. Finger, T. Figueroa-Feliciano, P. Friedrich, R. Fujimoto, A. Furuzawa, J. Fynbo, F. Gatti, M. Galeazzi, N. Gehrels, B. Gendre, G. Ghirlanda, G. Ghisellini, M. Gilfanov, P. Giommi, M. Girardi, J. Grindlay, M. Cocchi, O. Godet, M. Guedel, F. Haardt, R. den Hartog, I. Hepburn, W. Hermsen, J. Hjorth, H. Hoekstra, A. Holland, A. Hornstrup, A. van der Horst, A. Hoshino, J. in't Zand, K. Irwin, Y. Ishisaki, P. Jonker, T. Kitayama, H. Kawahara, N. Kawai, R. Kelley, C. Kilbourne, P. de Korte, A. Kusenko, I. Kuvvetli, M. Labanti, C. Macculi, R. Maiolino, M. Mas Hesse, K. Matsushita, P. Mazzotta, D. McCammon, M. Mendez, R. Mignani, T. Mineo, K. Mitsuda, R. Mushotzky, S. Molendi, L. Moscardini, L. Natalucci, F. Nicastro, P. O'Brien, J. Osborne, F. Paerels, M. Page, S. Paltani, K. Pedersen, E. Perinati, T. Ponman, E. Pointecouteau, P. Predehl, S. Porter, A. Rasmussen, G. Rauw, H. Rottgering, M. Roncarelli, P. Rosati, E. Quadrini, O. Ruchayskiy, R. Salvaterra, S. Sasaki, K. Sato, S. Savaglio, J. Schaye, S. Sciortino, M. Shaposhnikov, R. Sharples, K. Shinozaki, D. Spiga, R. Sunyaev, Y. Suto, Y. Takei, N. Tanvir, M. Tashiro, T. Tamura, Y. Tawara, E. Troja, M. Tsujimoto, T. Tsuru, P. Ubertini, J. Ullom, E. Ursino, F. Verbunt, F. van de Voort, M. Viel, S. Wachter, D. Watson, M. Weisskopf, N. Werner, N. White, R. Willingale, R. Wijers, N. Yamasaki, K. Yoshikawa, S. Zane

EXPERIMENTAL ASTRONOMY, 34(2) 519-549, Oct, 2012
CAN GROUND-BASED TELESCOPES DETECT THE OXYGEN 1.27 mu m ABSORPTION FEATURE AS A BIOMARKER IN EXOPLANETS?

Hajime Kawahara, Taro Matsuo, Michihiro Takami, Yuka Fujii, Takayuki Kotani, Naoshi Murakami, Motohide Tamura, Olivier Guyon

ASTROPHYSICAL JOURNAL, 758(1) 13, Oct, 2012 Peer-reviewed
Systematic X-ray Analysis of Radio Relic Clusters with SUZAKU

Hiroki Akamatsu, Hajime Kawahara

Accepted by PASJ, 65(1) 16-1-10, Sep, 2012 Peer-reviewed

We perform a systematic X-ray analysis of six giant radio relics of four clusters with Suzaku satellite by compiling new analysis of CIZA 2242.8-5301, Zwcl 2341.1-0000, and Abell 3667 and previous results of A3667 and A3376. Especially we first observed the narrow (~50 kpc) relic of CIZA 2242.8-5301 by Suzaku satellite, which enable us to reduce the projection effect. From the spectroscopic temperature profiles across the relic, we find that temperature profiles exhibits significant jumps across the relics for CIZA 2242.8-5301, A3376, A3667NW and A3667SE. We evaluated the Mach number from X...
MAPPING EARTH ANALOGS FROM PHOTOMETRIC VARIABILITY: SPIN-ORBIT TOMOGRAPHY FOR PLANETS IN INCLINED ORBITS

Yuka Fujii, Hajime Kawahara

ASTROPHYSICAL JOURNAL, 755(2) 101, Aug, 2012 Peer-reviewed
Image retrieval of earth-like planets from light curves

Hajime Kawahara, Yuka Fujii

Proceedings of the International Astronomical Union, 8(293) 71-73, 2012 Peer-reviewed
Second-Earth Imager for TMT (SEIT): Concept and its Numerical Simulation

Taro Matsuo, Takayuki Kotani, Naoshi Murakami, Hajime Kawahara, Yuka Fujii, Shin Oya, Mikio Kurita, Noriaki Natsume, Norio Narita, Kenji Takizawa, Masahiro Ikoma, Jun Minagawa, Naoshi Baba, Motohide Tamura

GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY IV, 8446, 2012 Peer-reviewed
Development of the Savart-plate lateral-shearing interferometric nuller for exoplanet (SPLINE)

Naoshi Murakami, Manabu Kida, Naoshi Baba, Taro Matsuo, Takayuki Kotani, Hajime Kawahara, Yuka Fujii, Motohide Tamura

GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY IV, 8446, 2012 Peer-reviewed
MAPPING CLOUDS AND TERRAIN OF EARTH-LIKE PLANETS FROM PHOTOMETRIC VARIABILITY: DEMONSTRATION WITH PLANETS IN FACE-ON ORBITS

Hajime Kawahara, Yuka Fujii

ASTROPHYSICAL JOURNAL LETTERS, 739(2) L62, Oct, 2011 Peer-reviewed
COLORS OF A SECOND EARTH. II. EFFECTS OF CLOUDS ON PHOTOMETRIC CHARACTERIZATION OF EARTH-LIKE EXOPLANETS

Yuka Fujii, Hajime Kawahara, Yasushi Suto, Satoru Fukuda, Teruyuki Nakajima, Timothy A. Livengood, Edwin L. Turner

ASTROPHYSICAL JOURNAL, 738(2) 184, Sep, 2011 Peer-reviewed
The persistent cosmic web and its filamentary structure - II. Illustrations

T. Sousbie, C. Pichon, H. Kawahara

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 414(1) 384-403, Jun, 2011 Peer-reviewed
STUDYING THE WARM-HOT INTERGALACTIC MEDIUM IN EMISSION

Y. Takei, E. Ursino, E. Branchini, T. Ohashi, H. Kawahara, K. Mitsuda, L. Piro, A. Corsi, L. Amati, J. W. den Herder, M. Galeazzi, J. Kaastra, L. Moscardini, F. Nicastro, F. Paerels, M. Roncarelli, M. Viel

ASTROPHYSICAL JOURNAL, 734(2) 91, Jun, 2011 Peer-reviewed
SUZAKU OBSERVATION OF A NEW MERGING GROUP OF GALAXIES AT A FILAMENTARY JUNCTION

Hajime Kawahara, Hiroshi Yoshitake, Takahiro Nishimichi, Thierry Sousbie

ASTROPHYSICAL JOURNAL LETTERS, 727(2) L38, Feb, 2011 Peer-reviewed
GLOBAL MAPPING OF EARTH-LIKE EXOPLANETS FROM SCATTERED LIGHT CURVES

Hajime Kawahara, Yuka Fujii

ASTROPHYSICAL JOURNAL, 720(2) 1333-1350, Sep, 2010 Peer-reviewed
IMPACT OF CHANDRA CALIBRATION UNCERTAINTIES ON GALAXY CLUSTER TEMPERATURES: APPLICATION TO THE HUBBLE CONSTANT

Erik D. Reese, Hajime Kawahara, Tetsu Kitayama, Naomi Ota, Shin Sasaki, Yasushi Suto

ASTROPHYSICAL JOURNAL, 721(1) 653-669, Sep, 2010 Peer-reviewed
THE AXIS RATIO DISTRIBUTION OF X-RAY CLUSTERS OBSERVED BY XMM-NEWTON

Hajime Kawahara

ASTROPHYSICAL JOURNAL, 719(2) 1926-1931, Aug, 2010 Peer-reviewed
COLORS OF A SECOND EARTH: ESTIMATING THE FRACTIONAL AREAS OF OCEAN, LAND, AND VEGETATION OF EARTH-LIKE EXOPLANETS

Yuka Fujii, Hajime Kawahara, Yasushi Suto, Atsushi Taruya, Satoru Fukuda, Teruyuki Nakajima, Edwin L. Turner

ASTROPHYSICAL JOURNAL, 715(2) 866-880, Jun, 2010 Peer-reviewed
EDGE: Explorer of diffuse emission and gamma-ray burst explosions

L. Piro, J. W. den Herder, T. Ohashi, L. Amati, J. L. Atteia, S. Barthelmy, M. Barbera, D. Barret, S. Basso, M. Boer, S. Borgani, O. Boyarskiy, E. Branchini, G. Branduardi-Raymont, M. Briggs, G. Brunetti, C. Budtz-Jorgensen, D. Burrows, S. Campana, E. Caroli, G. Chincarini, F. Christensen, M. Cocchi, A. Comastri, A. Corsi, V. Cotroneo, P. Conconi, L. Colasanti, G. Cusumano, A. de Rosa, M. Del Santo, S. Ettori, Y. Ezoe, L. Ferrari, M. Feroci, M. Finger, G. Fishman, R. Fujimoto, M. Galeazzi, A. Galli, F. Gatti, N. Gehrels, B. Gendre, G. Ghirlanda, G. Ghisellini, P. Giommi, M. Girardi, L. Guzzo, F. Haardt, I. Hepburn, W. Hermsen, H. Hoevers, A. Holland, J. in't Zand, Y. Ishisaki, H. Kawahara, N. Kawai, J. Kaastra, M. Kippen, P. A. J. de Korte, C. Kouveliotou, A. Kusenko, C. Labanti, R. Lieu, C. Macculi, K. Makishima, G. Matt, P. Mazzotta, D. McCammon, M. Mendez, T. Mineo, S. Mitchell, K. Mitsuda, S. Molendi, L. Moscardini, R. Mushotzky, L. Natalucci, F. Nicastro, P. O'Brien, J. Osborne, F. Paerels, M. Page, S. Paltani, G. Pareschi, E. Perinati, C. Perola, T. Ponman, A. Rasmussen, M. Roncarelli, P. Rosati, O. Ruchayskiy, E. Quadrini, I. Sakurai, R. Salvaterra, S. Sasaki, G. Sato, J. Schaye, J. Schmitt, S. Sciortino, M. Shaposhnikov, K. Shinozaki, D. Spiga, Y. Suto, G. Tagliaferri, T. Takahashi, Y. Takei, Y. Tawara, P. Tozzi, H. Tsunemi, T. Tsuru, P. Ubertini, E. Ursino, M. Viel, J. Vink, N. White, R. Willingale, R. Wijers, K. Yoshikawa, N. Yamasaki

EXPERIMENTAL ASTRONOMY, 23(1) 67-89, Mar, 2009
EXTRACTING GALAXY CLUSTER GAS INHOMOGENEITY FROM X-RAY SURFACE BRIGHTNESS: A STATISTICAL APPROACH AND APPLICATION TO ABELL 3667

Hajime Kawahara, Erik D. Reese, Tetsu Kitayama, Shin Sasaki, Yasushi Suto

ASTROPHYSICAL JOURNAL, 687(2) 936-950, Nov, 2008 Peer-reviewed
Systematic errors in the Hubble constant measurement from the Sunyaev-Zel'dovich effect

Hajime Kawahara, Tetsu Kitayama, Shin Sasaki, Yasushi Suto

ASTROPHYSICAL JOURNAL, 674(1) 11-21, Feb, 2008 Peer-reviewed
X-ray study of temperature and abundance profiles of the cluster of galaxies Abell 1060 with Suzaku

Kosuke Sato, Noriko Y. Yamasaki, Manabu Ishida, Yoshitaka Ishisaki, Takaya Ohashi, Hajime Kawahara, Takao Kitaguchi, Madoka Kawaharada, Motohide Kokubun, Kazuo Makishima, Naomi Ota, Kazuhiro Nakazawa, Takayuki Tamura, Kyoko Matsushita, Naomi Kawano, Yasushi Fukazawa, John P. Hughes

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 59(2) 299-317, Apr, 2007 Peer-reviewed
Radial profile and lognormal fluctuations of the intracluster medium as the origin of systematic bias in spectroscopic temperature

Hajime Kawahara, Yasushi Suto, Tetsu Kitayama, Shin Sasaki, Mamoru Shimizu, Elena Rasia, Klaus Dolag

ASTROPHYSICAL JOURNAL, 659(1) 257-266, Apr, 2007 Peer-reviewed
EDGE: Explorer of diffuse emission and gamma-ray burst explosions

J. W. Den Herder, L. Piro, T. Ohashi, L. Amati, J. Atteia, S. Barthelmy, M. Barbera, D. Barret, S. Basso, M. Boer, S. Borgani, O. Boyarskiy, Branchini, G. Branduardi-Raymont, M. Briggs, G. Brunetti, C. Budtz-Jorgensenf, D. Burrows, S. Campana, E. Caroli, G. Chincarini, F. Christensen, M. Cocchi, A. Comastri, A. Corsi, V. Cotroneo, P. Conconi, L. Colasanti, G. Cusumano, A. De Rosa, M. Del Santo, S. Ettori, Y. Ezoe, L. Ferrari, M. Feroci, M. Fingen, G. Fishman, R. Fujimoto, M. Galeazzi, A. Galli, F. Gatti, N. Gehrels, B. Gendre, G. Ghirlanda, G. Ghisellini, P. Giommi, M. Girardi, L. Guzzo, F. Haardt, I. Hepburn, W. Hermsen, H. Hoevers, A. Holland, J. In't Zand, Y. Ishisaki, H. Kawahara, N. Kawai, J. Kaastra, M. Kippen, P. A.J. De Korte, C. Kouveliotou, A. Kusenko, C. Labanti, R. Lieu, C. Macculi, K. Makishima, G. Matt, P. Mazotta, D. McCammon, M. Méndez, T. Mineo, S. Mitchell, K. Mitsuda, S. Molendi, L. Moscardini, R. Mushotzky, L. Natalucci, F. Nicastro, P. O'Brien, J. Osborne, F. Paerels, M. Page, S. Paltani, G. Pareschi, E. Perinati, C. Perola, T. Ponman, A. Rasmussen, M. Roncarelli, P. Rosati, O. Ruchayskiy, E. Quadrini, Sakurai, R. Salvaterra, S. Sasaki, G. Sato, J. Schaye, J. Schmidtt, S. Scioritino, M. Shaposhnikov

Proceedings of SPIE - The International Society for Optical Engineering, 6688, Jan 1, 2007
Soft X-ray transmission spectroscopy of a Warm/Hot Intergalactic Medium with XEUS

Hajime Kawahara, Kohji Yoshikawa, Shin Sasaki, Yasushi Suto, Nobuyuki Kawai, Kazuhisa Mitsuda, Takaya Ohashi, Noriko Y. Yamasaki

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 58(4) 657-671, Aug, 2006 Peer-reviewed
DIOS: the Diffuse Intergalactic Oxygen Surveyor - art. no. 62660G

T. Ohashi, M. Ishida, S. Sasaki, Y. Ishisaki, K. Mitsuda, N. Y. Yamasaki, R. Fujimoto, Y. Takei, Y. Tawara, A. Furuzawa, Y. Suto, Y. Yoshikawa, H. Kawayara, N. Kawai, T. G. Tsuru, K. Matsushita, T. Kitayama

Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray, Pts 1 and 2, 6266 G2660-G2660, 2006

Misc.

大気大循環モデルを用いた系外惑星の光度曲線解析による自転軸傾斜角推定 II

中川雄太, 小玉貴則, 石渡正樹, 河原創, 須藤靖, 高橋芳幸, はしもとじょーじ, 倉本圭, 中島健介, 竹広真一, 林祥介

日本天文学会年会講演予稿集, 2019, 2019
DIOS - The Diffuse Intergalactic Oxygen Surveyor: Status and prospects

T. Ohashi, Y. Ishisaki, Y. Ezoe, S. Sasaki, H. Kawahara, K. Mitsuda, N.Y. Yamasaki, Y. Takei, M. Ishida, Y. Tawara, I. Sakurai, A. Furuzawa, Y. Suto, K. Yoshikawa, N. Kawai, R. Fujimoto, T.G. Tsuru, K. Matsushita, T. Kitayama

Proceedings of SPIE - The International Society for Optical Engineering, 7732, 2010 Peer-reviewed

Books and Other Publications

系外惑星探査 : 地球外生命をめざして = Exoplanet exploration : toward exolife

河原, 創

東京大学出版会, Mar, 2018 (ISBN: 9784130627276)

Professional Memberships

Major Research Projects

マルチジェネレーション衛星で探る長周期系外惑星の普遍性解明のための検出器開発

科学研究費助成事業基盤研究(A), 日本学術振興会, Apr, 2023 - Mar, 2026

河原創
Mapping Habitable Planetary Environments with Exoplanet Imaging

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (S), Japan Society for the Promotion of Science, Jul, 2021 - Mar, 2026
太陽系外惑星の世界地図推定を目指した多色同時測光システムの開発

自然科学研究助成, 三菱財団, Oct, 2023 - Sep, 2024

河原創
高分散コロナグラフによる系外惑星大気の探索

科学研究費助成事業基盤研究(A), 日本学術振興会, Apr, 2020 - Mar, 2023

河原創, 小谷隆行, Guyon Olivier

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