Compositional indication of E- and M-type asteroids by VIS-NIR reflectance spectra of meteorites
文献类型：期刊论文
| 作者 | Zhang, Pengfei3,4; Li, Yang2,5; Zhang, Jiang1; Li, Shijie2,5; Jin, Ziliang3,4; Han, Huijie7; Liu, Changqing1; Lin, Yangting6; Ling, Zongcheng1; Wen, Yuanyun2 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2023-03-08 |
| 卷号 | 671页码:15 |
| ISSN号 | 0004-6361 |
| 关键词 | minor plantes,asteroids:general meteorites,meteoroids methods:analytical |
| DOI | 10.1051/0004-6361/202245207 |
| 英文摘要 | Context. E-type asteroids have been linked to aubrites, while M-type asteroids have been linked to enstatite chondrites (ECs) and iron meteorites (IMs). However, as ECs and IMs generally lack absorption characteristics, distinguishing their parent bodies by spectroscopy generally poses a challenge.Aims. We aim to develop a method to distinguish two kinds of M-type asteroids, the parent bodies of ECs and IMs, and to infer their composition.Methods. We measured the visible to near-infrared (VIS-NIR) reflectance spectra of aubrite, ECs, and IMs. Then we analyzed and compared their spectral parameters, such as the reflectance at 0.55 mu m (R-0.55), absorption bands, and spectral slopes. We also compared the geometric albedo and spectral slopes of a total of 13 E-type and 14 M-type asteroids. Furthermore, combining the collected radar albedo and density data of M-type asteroids, we discuss their potential composition at different depths.Results. We find that for most meteorites, with the exception of very weak absorption in an aubrite and an EH7 chondrite, ECs and IMs do not show any absorption characteristics. Aubrite shows extremely high reflectance and a negative near-infrared slope (NIRS) and ECs show relatively low reflectance and moderately positive NIRS, while IMs show relatively moderate reflectance and the steepest positive NIRS. Two diagrams plotting with R-0.55 and NIRS calculated in the 1.1-1.2 mu m and 1.1-1.4 mu m bands were subsequently shown to perform optimally at distinguishing aubrite, ECs, and IMs. In addition, M-type asteroids have a wide range of NIRS and diverse radar albedo and densities, whereby 16 Psyche shows high NIRS, radar albedo, and density, while 21 Lutetia is dominated by low values for these parameters.Conclusions. We demonstrate that NIRS is correlated with metal content and increases with metal content. In particular, the NIRS calculated in the 1.1-1.4 mu m band is a potentially useful parameter for inferring the surface metal content of E- and M-type asteroids. Based on our results, we suggest that the featureless M-type asteroids ought to be divided into two subtypes: Mm- (e.g., 16 Psyche) and Me-type (e.g., 21 Lutetia) in the aim of characterizing the sources of IMs and ECs, respectively. |
| WOS关键词 | MAIN-BELT ASTEROIDS ; NEAR-EARTH OBJECTS ; RADAR SURVEY ; 2867 STEINS ; SPECTROSCOPIC SURVEY ; LASER IRRADIATION ; IRON-METEORITES ; 21 LUTETIA ; 16 PSYCHE ; TARGET |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Science[XDB 41000000] ; Youth Innovation Promotion Association CAS grant[2020395] ; Science and Technology Development Fund of Macao SAR[0067/2021/A] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | EDP SCIENCES S A |
| WOS记录号 | WOS:000982354400008 |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; Youth Innovation Promotion Association CAS grant ; Youth Innovation Promotion Association CAS grant ; Science and Technology Development Fund of Macao SAR ; Science and Technology Development Fund of Macao SAR ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; Youth Innovation Promotion Association CAS grant ; Youth Innovation Promotion Association CAS grant ; Science and Technology Development Fund of Macao SAR ; Science and Technology Development Fund of Macao SAR ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; Youth Innovation Promotion Association CAS grant ; Youth Innovation Promotion Association CAS grant ; Science and Technology Development Fund of Macao SAR ; Science and Technology Development Fund of Macao SAR ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; Youth Innovation Promotion Association CAS grant ; Youth Innovation Promotion Association CAS grant ; Science and Technology Development Fund of Macao SAR ; Science and Technology Development Fund of Macao SAR |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/110946]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Zhang, Pengfei |
| 作者单位 | 1.Shandong Univ, Inst Space Sci, Sch Space Sci & Phys, Shandong Key Lab Opt Astron & Solar Terr Environm, Weihai, Shandong, Peoples R China 2.Chinese Acad Sci, Inst Geochem, Ctr Lunar & Planetary Sci, Guiyang, Guizhou, Peoples R China 3.Macau Univ Sci & Technol, State Key Lab Lunar & Planetary Sci, Macau, Peoples R China 4.CNSA Macau Ctr Space Explorat & Sci, Macau, Peoples R China 5.Chinese Acad Sci, Ctr Excellence Comparat Planetol, Hefei, Anhui, Peoples R China 6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China 7.Henan Polytech Univ, Inst Resources & Environm, Jiaozuo, Henan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Pengfei,Li, Yang,Zhang, Jiang,et al. Compositional indication of E- and M-type asteroids by VIS-NIR reflectance spectra of meteorites[J]. ASTRONOMY & ASTROPHYSICS,2023,671:15. |
| APA | Zhang, Pengfei.,Li, Yang.,Zhang, Jiang.,Li, Shijie.,Jin, Ziliang.,...&Wen, Yuanyun.(2023).Compositional indication of E- and M-type asteroids by VIS-NIR reflectance spectra of meteorites.ASTRONOMY & ASTROPHYSICS,671,15. |
| MLA | Zhang, Pengfei,et al."Compositional indication of E- and M-type asteroids by VIS-NIR reflectance spectra of meteorites".ASTRONOMY & ASTROPHYSICS 671(2023):15. |
入库方式： OAI收割
来源：地质与地球物理研究所
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