フォロー
Toshiki Koga
Toshiki Koga
確認したメール アドレス: jamstec.go.jp
タイトル
引用先
引用先
A new family of extraterrestrial amino acids in the Murchison meteorite
T Koga, H Naraoka
Scientific reports 7 (1), 1-8, 2017
1572017
Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu
H Naraoka, Y Takano, JP Dworkin, Y Oba, K Hamase, A Furusho, ...
Science 379 (6634), eabn9033, 2023
872023
Identifying the wide diversity of extraterrestrial purine and pyrimidine nucleobases in carbonaceous meteorites
Y Oba, Y Takano, Y Furukawa, T Koga, DP Glavin, JP Dworkin, ...
Nature communications 13 (1), 2008, 2022
832022
Sound-velocity measurements for HFC-134a and HFC-152a with a spherical resonator
T Hozumi, T Koga, H Sato, K Watanabe
International journal of thermophysics 14, 739-762, 1993
441993
Uracil in the carbonaceous asteroid (162173) Ryugu
Y Oba, T Koga, Y Takano, NO Ogawa, N Ohkouchi, K Sasaki, H Sato, ...
Nature Communications 14 (1), 1292, 2023
262023
Synthesis of amino acids from aldehydes and ammonia: Implications for organic reactions in carbonaceous chondrite parent bodies
T Koga, H Naraoka
ACS Earth and Space Chemistry 6 (5), 1311-1320, 2022
112022
The spatial distribution of soluble organic matter and their relationship to minerals in the asteroid (162173) Ryugu
M Hashiguchi, D Aoki, K Fukushima, H Naraoka, Y Takano, JP Dworkin, ...
Earth, Planets and Space 75 (1), 73, 2023
62023
SOUND-VELOCITY MEASUREMENTS FOR HFC-134A AND HFC-152A WITH A SPHERICAL RESONATOR (VOL 14, PG 739, 1993)
T Hozumi, T Koga, H Sato, K Watanabe
INTERNATIONAL JOURNAL OF THERMOPHYSICS 15 (2), 385-386, 1994
61994
Extraterrestrial hydroxy amino acids in CM and CR carbonaceous chondrites
T Koga, ET Parker, HL McLain, JC Aponte, JE Elsila, JP Dworkin, ...
Meteoritics & Planetary Science 56 (5), 1005-1023, 2021
52021
Chemical evolution of primordial salts and organic sulfur molecules in the asteroid 162173 Ryugu
T Yoshimura, Y Takano, H Naraoka, T Koga, D Araoka, NO Ogawa, ...
Nature communications 14 (1), 5284, 2023
42023
Investigating the impact of x‐ray computed tomography imaging on soluble organic matter in the Murchison meteorite: Implications for Bennu sample analyses
DP Glavin, SA Eckley, JC Aponte, EL Berger, AS Burton, JP Dworkin, ...
Meteoritics & Planetary Science 59 (1), 105-133, 2024
22024
Polycyclic aromatic hydrocarbons in samples of Ryugu formed in the interstellar medium
SS Zeichner, JC Aponte, S Bhattacharjee, G Dong, AE Hofmann, ...
Science 382 (6677), 1411-1416, 2023
22023
Wide diversity of pyrimidine nucleobases in carbonaceous meteorites
Y Oba, Y Takano, Y Furukawa, T Koga, DP Glavin, JP Dworkin, ...
The Astrobiology Science Conference (AbSciCon) 2022, 431-02, 2022
22022
Investigating the Impact of X-Ray Computed Tomography Imaging on Organic Matter in the Murchison Meteorite: Implications for Bennu Sample Analyses
DP Glavin, SA Eckley, CM Alexander, JC Aponte, EL Berger, AS Burton, ...
LPI Contributions 2990, 6018, 2023
12023
Abundant extraterrestrial purine nucleobases in the Murchison meteorite: Implications for a unified mechanism for purine synthesis in carbonaceous chondrite parent bodies
T Koga, Y Takano, Y Oba, H Naraoka, N Ohkouchi
Geochimica et Cosmochimica Acta 365, 253-265, 2024
2024
Search for Primordial Nitrogen-Heterocycles of Astrochemical Interest in the Aqueous Extracts from the Asteroid (162173) Ryugu and Orgueil CI-Meteorite
Y Oba, T Koga, Y Takano, NO Ogawa, N Ohkouchi, DP Glavin, ...
LPI Contributions 2806, 1177, 2023
2023
Method for Analyzing Compound-Specific Carbon and Nitrogen Isotopic Composition of Purine and Pyrimidine Nucleobases in Carbonaceous Meteorites: Perspectives for Bennu Samples
T Koga, Y Takano, NO Ogawa, Y Oba, N Ohkouchi, H Naraoka, DP Glavin, ...
LPI Contributions 2806, 2289, 2023
2023
Diversity of Nitrogen Heterocyclic Molecules in the Sample Returned from Asteroid Ryugu
T Koga, Y Oba, Y Takano, JP Dworkin, H Naraoka
The Astrobiology Science Conference (AbSciCon) 2022, 431-03, 2022
2022
Water-and Acid-Soluble Components in the Asteroid Ryugu: Insight from Primordial Salt with Aqueous Alteration
T Yoshimura, Y Takano, H Naraoka, T Koga, Y Oba, NO Ogawa, ...
53rd Lunar and Planetary Science Conference 2678, 1787, 2022
2022
The distributions and characteristics of biologically relevant compounds (amino acids, sugars, and nucleobases) in carbonaceous meteorites
T KOGA
Viva Origino (Web) 50 (3), 5, 2022
2022
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