宇宙物理学研究系

研究キーワード

太陽系外惑星

研究分野

自然科学一般 / 宇宙惑星科学 / 太陽系外惑星
自然科学一般 / 天文学 / 重力マイクロレンズ、赤外線天文学

経歴

2022年10月

-

現在

国立研究開発法人宇宙航空研究開発機構宇宙科学研究所宇宙航空プロジェクト研究員

2021年4月

-

2022年9月

独立行政法人日本学術振興会特別研究員(PD)

学歴

2019年4月

-

2021年3月

大阪大学大学院理学研究科宇宙地球科学専攻博士後期課程

2017年4月

-

2019年3月

大阪大学大学院理学研究科宇宙地球科学専攻博士前期課程

2013年4月

-

2017年3月

大阪大学理学部物理学科

論文

12 3 4 5 >

OGLE-2014-BLG-0221Lb: A Jupiter Mass Ratio Companion Orbiting Either a Late-type Star or a Stellar Remnant

Rintaro Kirikawa Takahiro Sumi David P. Bennett Daisuke Suzuki Naoki Koshimoto Shota Miyazaki Ian A. Bond Andrzej Udalski Nicholas J. Rattenbury Fumio Abe Richard Barry Aparna Bhattacharya Hirosane Fujii Akihiko Fukui Ryusei Hamada Yuki Hirao Stela Ishitani Silva Yoshitaka Itow Yutaka Matsubara Yasushi Muraki Greg Olmschenk Clément Ranc Yuki K. Satoh Mio Tomoyoshi Paul . J. Tristram Aikaterini Vandorou Hibiki Yama Kansuke Yamashita Przemek Mróz Radosław Poleski Jan Skowron Michał K. Szymański Igor Soszyński Paweł Pietrukowicz Szymon Kozłowski Krzysztof Ulaczyk Mateusz J. Mróz

The Astronomical Journal 2024年4月

Evidence That the Occurrence Rate of Hot Jupiters around Sun-like Stars Decreases with Stellar Age

Shota Miyazaki Kento Masuda

The Astronomical Journal 2023年11月

OGLE-2019-BLG-0825: Constraints on the Source System and Effect on Binary-lens Parameters Arising from a Five-day Xallarap Effect in a Candidate Planetary Microlensing Event

Yuki K. Satoh Naoki Koshimoto David P. Bennett Takahiro Sumi Nicholas J. Rattenbury Daisuke Suzuki Shota Miyazaki Ian A. Bond Andrzej Udalski Andrew Gould Valerio Bozza Martin Dominik Yuki Hirao Iona Kondo Rintaro Kirikawa Ryusei Hamada Fumio Abe Richard Barry Aparna Bhattacharya Hirosane Fujii Akihiko Fukui Katsuki Fujita Tomoya Ikeno Stela Ishitani Silva Yoshitaka Itow Yutaka Matsubara Sho Matsumoto Yasushi Muraki Kosuke Niwa Arisa Okamura Greg Olmschenk Clément Ranc Taiga Toda Mio Tomoyoshi Paul J. Tristram Aikaterini Vandorou Hibiki Yama Kansuke Yamashita Przemek Mróz Radosław Poleski Jan Skowron Michał K. Szymański Radek Poleski Igor Soszyński Paweł Pietrukowicz Szymon Kozłowski Krzysztof Ulaczyk Krzysztof A. Rybicki Patryk Iwanek Marcin Wrona Mariusz Gromadzki Michael D. Albrow Sun-Ju Chung Cheongho Han Kyu-Ha Hwang Doeon Kim Youn Kil Jung Hyoun Woo Kim Yoon-Hyun Ryu In-Gu Shin Yossi Shvartzvald Hongjing Yang Jennifer C. Yee Weicheng Zang Sang-Mok Cha Dong-Jin Kim Seung-Lee Kim Chung-Uk Lee Dong-Joo Lee Yongseok Lee Byeong-Gon Park Richard W. Pogge Uffe G. Jørgensen Penélope Longa-Peña Sedighe Sajadian Jesper Skottfelt Colin Snodgrass Jeremy Tregloan-Reed Nanna Bach-Møller Martin Burgdorf Giuseppe D’Ago Lauri Haikala James Hitchcock Markus Hundertmark Elahe Khalouei Nuno Peixinho Sohrab Rahvar John Southworth Petros Spyratos

The Astronomical Journal 166(3) 116-116 2023年8月

Abstract

We present an analysis of microlensing event OGLE-2019-BLG-0825. This event was identified as a planetary candidate by preliminary modeling. We find that significant residuals from the best-fit static binary-lens model exist and a xalla...

Terrestrial- and Neptune-mass Free-Floating Planet Candidates from the MOA-II 9 yr Galactic Bulge Survey

Naoki Koshimoto Takahiro Sumi David P. Bennett Valerio Bozza Przemek Mróz Andrzej Udalski Nicholas J. Rattenbury Fumio Abe Richard Barry Aparna Bhattacharya Ian A. Bond Hirosane Fujii Akihiko Fukui Ryusei Hamada Yuki Hirao Stela Ishitani Silva Yoshitaka Itow Rintaro Kirikawa Iona Kondo Yutaka Matsubara Shota Miyazaki Yasushi Muraki Greg Olmschenk Clément Ranc Yuki Satoh Daisuke Suzuki Mio Tomoyoshi Paul J. Tristram Aikaterini Vandorou Hibiki Yama Kansuke Yamashita

The Astronomical Journal 166(3) 107-107 2023年8月

Abstract

We report the discoveries of low-mass free-floating planet (FFP) candidates from the analysis of 2006–2014 MOA-II Galactic bulge survey data. In this data set, we found 6111 microlensing candidates and identified a statistical sample co...

Free-floating Planet Mass Function from MOA-II 9 yr Survey toward the Galactic Bulge

Takahiro Sumi Naoki Koshimoto David P. Bennett Nicholas J. Rattenbury Fumio Abe Richard Barry Aparna Bhattacharya Ian A. Bond Hirosane Fujii Akihiko Fukui Ryusei Hamada Yuki Hirao Stela Ishitani Silva Yoshitaka Itow Rintaro Kirikawa Iona Kondo Yutaka Matsubara Shota Miyazaki Yasushi Muraki Greg Olmschenk Clément Ranc Yuki Satoh Daisuke Suzuki Mio Tomoyoshi Paul . J. Tristram Aikaterini Vandorou Hibiki Yama Kansuke Yamashita

The Astronomical Journal 166(3) 108-108 2023年8月

Abstract

We present the first measurement of the mass function of free-floating planets (FFPs), or very wide orbit planets down to an Earth mass, from the MOA-II microlensing survey in 2006–2014. Six events are likely to be due to planets with E...

MISC

<1 2 345 >

Spitzer Microlensing of MOA-2016-BLG-231L : A Counter-Rotating Brown Dwarf Binary in the Galactic Disk

Sun-Ju Chung Andrew Gould Jan Skowron Ian A. Bond Wei Zhu Michael D. Albrow Youn Kil Jung Cheongho Han Kyu-Ha Hwang Yoon-Hyun Ryu In-Gu Shin Yossi Shvartzvald Jennifer C. Yee Weicheng Zang Sang-Mok Cha Dong-Jin Kim Hyoun-Woo Kim Seung-Lee Kim Yun-Hak Kim Chung-Uk Lee Dong-Joo Lee Yongseok Lee Byeong-Gon Park Richard W. Pogge Andrzej Udalski Radek Poleski Przemek Mróz Paweł Pietrukowicz Michał K. Szymański Igor Soszyński Szymon Kozłowski Krzysztof Ulaczyk Michał Pawlak Charles A. Beichman Geoffery Bryden Sebastiano Calchi Novati Sean Carey B. Scott Gaudi Calen B. Henderson Fumio Abe Richard Barry David P. Bennett Aparna Bhattacharya Martin Donachie Akihiko Fukui Yuki Hirao Yoshitaka Itow Kohei Kawasaki Iona Kondo Naoki Koshimoto Man Cheung Alex Li Yutaka Matsubara Yasushi Muraki Shota Miyazaki Masayuki Nagakane Clément Ranc Nicholas J. Rattenbury Haruno Suematsu Denis J. Sullivan Takahiro Sumi Daisuke Suzuki Paul J. Tristram Atsunori Yonehara

The Astrophysical Journal 871(2) 179-179 2019年2月

We analyze the binary microlensing event MOA-2016-BLG-231, which was observed
from the ground and from Spitzer. The lens is composed of very low-mass brown
dwarfs (BDs) with

and

, and
it is locat...

OGLE-2016-BLG-0156: Microlensing Event With Pronounced Microlens-Parallax Effects Yielding Precise Lens Mass Measurement

Youn Kil Jung Cheongho Han Ian A. Bond Andrzej Udalski Andrew Gould Michael D. Albrow Sun-Ju Chung Kyu-Ha Hwang Chung-Uk Lee Yoon-Hyun Ryu In-Gu Shin Yossi Shvartzvald Jennifer C. Yee M. James Jee Doeon Kim Sang-Mok Cha Dong-Jin Kim Hyoun-Woo Kim Seung-Lee Kim Dong-Joo Lee Yongseok Lee Byeong-Gon Park Richard W. Pogge Fumio Abe Richard Barry David P. Bennett Aparna Bhattacharya Martin Donachie Akihiko Fukui Yuki Hirao Yoshitaka Itow Kohei Kawasaki Iona Kondo Naoki Koshimoto Man Cheung Alex Li Yutaka Matsubara Yasushi Muraki Shota Miyazaki Masayuki~Nagakane Clément Ranc Nicholas J. Rattenbury Haruno Suematsu Denis J. Sullivan Takahiro Sumi Daisuke Suzuki Paul J. Tristram Atsunori Yonehara Przemek Mróz Radek Poleski Jan Skowron Michał K. Szymański Igor Soszyński Szymon Kozłowski Paweł Pietrukowicz Krzysztof Ulaczy Michał Pawlak

The Astrophysical Journal 872(2) 175-175 2019年1月

We analyze the gravitational binary-lensing event OGLE-2016-BLG-0156, for
which the lensing light curve displays pronounced deviations induced by
microlens-parallax effects. The light curve exhibits 3 distinctive
widely-separated peaks and we find...

OGLE-2015-BLG-1670Lb: A Cold Neptune beyond the Snow Line in the Provisional WFIRST Microlensing Survey Field

Clément Ranc David P. Bennett Yuki Hirao Andrzej Udalski Cheongho Han Ian A. Bond Jennifer C. Yee The KMTNet Collaboration : Michael D. Albrow Sun-Ju Chung Andrew Gould Kyu-Ha Hwang Youn-Kil Jung Yoon-Hyun Ryu In-Gu Shin Yossi Shvartzvald Weicheng Zang Wei Zhu Sang-Mok Cha Dong-Jin Kim Hyoun-Woo Kim Seung-Lee Kim Chung-Uk Lee Dong-Joo Lee Yong-Seok Lee Byeong-Gon Park Richard W. Pogge The MOA Collaboration : Fumio Abe Richard K. Barry Aparna Bhattacharya Martin Donachie Akihiko Fukui Yoshitaka Itow Kohei Kawasaki Iona Kondo Naoki Koshimoto Man Cheung Alex Li Yutaka Matsubara Shota Miyazaki Yasushi Muraki Masayuki Nagakane Nicholas J. Rattenbury Haruno Suematsu Denis J. Sullivan Takahiro Sumi Daisuke Suzuki Paul J. Tristram Atsunori Yonehara The OGLE Collaboration : Radosław Poleski Przemek Mróz Jan Skowron Michał K. Szymański Igor Soszyński Szymon Kozłowski Paweł Pietrukowicz Krzysztof Ulaczyk

The Astronomical Journal 157(6) 232-232 2018年9月

We present the analysis of the microlensing event OGLE-2015-BLG-1670,
detected in a high-extinction field, very close to the Galactic plane. Due to
the dust extinction along the line of sight, this event was too faint to be
detected before it reac...

MOA-2016-BLG-319Lb: Microlensing Planet Subject to Rare Minor-Image Perturbation Degeneracy in Determining Planet Parameter

Cheongho Han Ian A. Bond Andrew Gould Michael D. Albrow Sun-Ju Chung Youn Kil Jung Kyu-Ha Hwang Chung-Uk Lee Yoon-Hyun Ryu In-Gu Shin Yossi Shvartzvald Jennifer C. Yee Sang-Mok Cha Dong-Jin Kim Hyoun-Woo Kim Seung-Lee Kim Dong-Joo Lee Yongseok Lee Byeong-Gon Park Richard W. Pogge Chun-Hwey Kim Fumio Abe Richard Barry David P. Bennett Aparna Bhattacharya Martin Donachie Akihiko Fukui Yuki Hira Yoshitaka Itow Kohei Kawasaki Iona Kondo Naoki Koshimoto Man Cheung Alex Li Yutaka Matsubara Yasushi Muraki Shota Miyazaki Masayuki Nagakane Clément Ranc Nicholas J. Rattenbury Haruno Suematsu Denis J. Sullivan Takahiro Sumi Daisuke Suzuki Paul J. Tristram Atsunori Yonehara

The Astronomical Journal 156(5) 226-226 2018年9月

We present the analysis of the planetary microlensing event MOA-2016-BLG-319.
The event light curve is characterized by a brief (

days) anomaly near
the peak produced by minor-image perturbations. From modeling, we find two
distinct soluti...

A Planetary Microlensing Event with an Unusually Red Source Star: MOA-2011-BLG-291

David P. Bennett Andrzej Udalski Ian A. Bond Daisuke Suzuki Yoon-Hyun Ryu Fumio Abe Richard K. Barry Aparna Bhattacharya Martin Donachie Akihiko Fukui Yuki Hirao Kohei Kawasaki Iona Kondo Naoki Koshimoto Man Cheung Alex Li Yutaka Matsubara Shota Miyazaki Yasushi Muraki Masayuki Nagakane Koji Ohnishi Clément Ranc Nicholas J. Rattenbury Haruno Suematsu Takahiro Sumi Paul J. Tristram Atsunori Yonehara Michał K. Szymański Igor Soszyński Łukasz Wyrzykowski Krzysztof Ulaczyk Radek Poleski Szymon Kozłowski Paweł Pietrukowicz Jan Skowron Yossi Shvartzvald Dan Maoz Shai Kaspi Matan Friedmann Virginie Batista Darren DePoy Subo Dong B. Scott Gaudi Andrew Gould Cheongho Han Richard W. Pogge Thiam-Guan Tan Jennifer C. Yee

The Astronomical Journal 156(3) 113-113 2018年6月

We present the analysis of planetary microlensing event MOA-2011-BLG-291,
which has a mass ratio of

and a source star that
is redder (or brighter) than the bulge main sequence. This event is located at
a low Galactic l...

共同研究・競争的資金等の研究課題

重力マイクロレンズを用いた地球質量の系外惑星、浮遊惑星及びブラックホールの探査
日本学術振興会: 科学研究費助成事業
住貴宏宮崎翔太越本直季

研究期間: 2023年9月 - 2027年3月

多様な観測データから迫る、冷たい系外惑星分布と惑星系の時間進化の解明
日本学術振興会: 科学研究費助成事業
宮崎翔太

研究期間: 2023年8月 - 2025年3月

銀河中心領域の短周期惑星の新たな検出手法の開発・惑星形成の銀河系環境依存性の解明
日本学術振興会: 科学研究費助成事業特別研究員奨励費
宮崎翔太

研究期間: 2021年4月 - 2023年3月

メディア報道

NASA’s Roman Mission Will Probe Galaxy’s Core for Hot Jupiters, Brown Dwarfs

https://www.nasa.gov/feature/goddard/2021/nasa-s-roman-mission-will-probe-galaxy-s-core-for-hot-jupiters-brown-dwarfs 2021年1月 [インターネットメディア]

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