In situ science on Phobos with the Raman spectrometer for MMX (RAX): preliminary design and feasibility of Raman measurements

被引：40

作者：

Cho, Yuichiro ^{[1
]}

Bottger, Ute ^{[2
]}

Rull, Fernando ^{[3
]}

Hubers, Heinz-Wilhelm ^{[2
]}

Belenguer, Tomas ^{[4
]}

Borner, Anko ^{[2
]}

Buder, Maximilian ^{[2
]}

Bunduki, Yuri ^{[2
]}

Dietz, Enrico ^{[2
]}

Hagelschuer, Till ^{[2
]}

Kameda, Shingo ^{[5
,9
]}

Kopp, Emanuel ^{[2
]}

Lieder, Matthias ^{[2
]}

Lopez-Reyes, Guillermo ^{[3
]}

Inza, Andoni Gaizka Moral ^{[4
]}

Mori, Shoki ^{[1
]}

Ogura, Jo Akino ^{[1
]}

Paproth, Carsten ^{[2
]}

Canora, Carlos Perez ^{[4
]}

Pertenais, Martin ^{[2
]}

Peter, Gisbert ^{[2
]}

Prieto-Ballesteros, Olga ^{[6
]}

Rockstein, Steve ^{[2
]}

Rodd-Routley, Selene ^{[2
]}

Perez, Pablo Rodriguez ^{[4
]}

Ryan, Conor ^{[2
]}

Santamaria, Pilar ^{[4
]}

Sauberlich, Thomas ^{[2
]}

Schrandt, Friedrich ^{[2
]}

Schroder, Susanne ^{[2
]}

Stangarone, Claudia ^{[7
]}

Ulamec, Stephan ^{[8
]}

Usui, Tomohiro ^{[9
]}

Weber, Iris ^{[10
]}

Westerdorff, Karsten ^{[2
]}

Yumoto, Koki ^{[1
]}

机构：

[1] Univ Tokyo, Dept Earth & Planetary Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan

[2] Deutsch Zentrum Luft & Raumfahrt eV DLR, Inst Opt Sensor Syst, Rutherfordstr 2, D-12489 Berlin, Germany

[3] Univ Valladolid GIR ERICA, Av Francisco Valles,8 Parque Tecnol Boecillo, Valladolid, Spain

[4] Ctra Ajalvir, Inst Nacl Tecn Aerosp INTA, Ctra Ajalvir,Km 4, Ajalvir 28850, Spain

[5] Rikkyo Univ, Coll Sci, Dept Phys, 3-34-1 Nishiikebukuro, Tokyo 1718501, Japan

[6] Ctra Ajalvir, Ctr Astrobiol CAB INTA CSIC, Ctra Ajalvir,Km 4, Torrejon De Ardoz 28850, Spain

[7] Deutsch Zentrum Luft & Raumfahrt eV DLR, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany

[8] Deutsch Zentrum Luft & Raumfahrt eV DLR, Space Operat & Astronaut Training, D-51147 Cologne, Germany

[9] Japan Aerosp Explorat Agcy JAXA, Inst Space & Astronaut Sci, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan

[10] WWU Munster, Inst Planetol, Wilhelm Klemm Str 10, D-48149 Munster, Germany

来源：

EARTH PLANETS AND SPACE | 2021年 / 73卷 / 01期

关键词：

Raman spectroscopy; Raman spectrometer for MMX (RAX); Phobos; Mineralogy; In situ analysis; Sample return; Martian Moons eXploration (MMX); ITOKAWA; REGOLITH; SPECTRA;

D O I：

10.1186/s40623-021-01496-z

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Mineralogy is the key to understanding the origin of Phobos and its position in the evolution of the Solar System. In situ Raman spectroscopy on Phobos is an important tool to achieve the scientific objectives of the Martian Moons eXploration (MMX) mission, and maximize the scientific merit of the sample return by characterizing the mineral composition and heterogeneity of the surface of Phobos. Conducting in situ Raman spectroscopy in the harsh environment of Phobos requires a very sensitive, compact, lightweight, and robust instrument that can be carried by the compact MMX rover. In this context, the Raman spectrometer for MMX (i.e., RAX) is currently under development via international collaboration between teams from Japan, Germany, and Spain. To demonstrate the capability of a compact Raman system such as RAX, we built an instrument that reproduces the optical performance of the flight model using commercial off-the-shelf parts. Using this performance model, we measured mineral samples relevant to Phobos and Mars, such as anhydrous silicates, carbonates, and hydrous minerals. Our measurements indicate that such minerals can be accurately identified using a RAX-like Raman spectrometer. We demonstrated a spectral resolution of approximately 10 cm(-1), high enough to resolve the strongest olivine Raman bands at similar to 820 and similar to 850 cm(-1), with highly sensitive Raman peak measurements (e.g., signal-to-noise ratios up to 100). These results strongly suggest that the RAX instrument will be capable of determining the minerals expected on the surface of Phobos, adding valuable information to address the question of the moon's origin, heterogeneity, and circum-Mars material transport.

引用

页数：11

共 31 条

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