Expected spectral characteristics of (101955) Bennu and (162173) Ryugu, targets of the OSIRIS-REx and Hayabusa2 missions

被引：24

作者：

de Leon, J. ^{[1
,2
]}

Campins, H. ^{[3
]}

Morate, D. ^{[1
,2
]}

De Pra, M. ^{[4
]}

Ali-Lagoa, V. ^{[5
]}

Licandro, J. ^{[1
,2
]}

Rizos, J. L. ^{[1
,2
]}

Pinilla-Alonso, N. ^{[6
]}

DellaGiustina, D. N. ^{[7
]}

Lauretta, D. S. ^{[7
]}

Popescu, M. ^{[1
,2
]}

Lorenzi, V. ^{[1
,8
]}

机构：

[1] Inst Astrofis Canarias, C Via Lactea S-N, E-38205 Tenerife, Spain

[2] Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain

[3] Univ Cent Florida, Phys Dept, PP Box 162385, Orlando, FL 32816 USA

[4] Observ Nacl, Dept Astrofis, BR-20921400 Rio De Janeiro, Brazil

[5] Max Planck Inst Extraterr Phys, Giessenbachstr 1, D-85748 Garching, Germany

[6] Univ Cent Florida, Florida Space Inst, Orlando, FL 32816 USA

[7] Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA

[8] Fdn Galileo Galilei, INAF, Rambla Jose Ana Fernandez Perez 7, E-38712 Brena Baja, La Plama, Spain

来源：

ICARUS | 2018年 / 313卷

基金：

欧盟地平线“2020”;

关键词：

Near-Earth objects; Asteroids; Surfaces; Spectroscopy; ASTEROID SPECTROSCOPIC SURVEY; NEAR-EARTH; EULALIA; ORIGIN; IRRADIATION; YARKOVSKY; METEORITE; FAMILIES;

D O I：

10.1016/j.icarus.2018.05.009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

NASA's OSIRIS-REx and JAXA's Hayabusa2 sample-return missions are currently on their way to encounter primitive near-Earth asteroids (101955) Bennu and (162173) Ryugu, respectively. Spectral and dynamical evidence indicates that these near-Earth asteroids originated in the inner part of the main belt. There are several primitive collisional families in this region, and both these asteroids are most likely to have originated in the Polana-Eulalia family complex. We present the expected spectral characteristics of both targets based on our studies of four primitive collisional families in the inner belt: Polana-Eulalia, Erigone, Sulamitis, and Clarissa. Observations were obtained in the framework of our PRIMitive Asteroids Spectroscopic Survey (PRIMASS). Our results are especially relevant to the planning and interpretation of in situ images and spectra to be obtained by the two spacecraft during the encounters with their targets. (C) 2018 Elsevier Inc. All rights reserved.

引用

页码：25 / 37

页数：13

共 59 条

[1]

Abe M., 2008, 39 ANN LUNAR PLANETA, P1594

[2] The AKARI IRC asteroid flux catalogue: updated diameters and albedos [J].

Ali-Lagoa, V. ;

Mueller, T. G. ;

Usui, F. ;

Hasegawa, S. .

ASTRONOMY & ASTROPHYSICS, 2018, 612

[3] Differences between the Pallas collisional family and similarly sized B-type asteroids [J].

Ali-Lagoa, V. ;

Licandro, J. ;

Gil-Hutton, R. ;

Canada-Assandri, M. ;

Delbo, M. ;

de Leon, J. ;

Campins, H. ;

Pinilla-Alonso, N. ;

Kelley, M. S. P. ;

Hanus, J. .

ASTRONOMY & ASTROPHYSICS, 2016, 591

[4] Spectral slope variations for OSIRIS-REx target Asteroid (101955) Bennu: Possible evidence for a fine-grained regolith equatorial ridge [J].

Binzel, Richard P. ;

DeMeo, Francesca E. ;

Burt, Brian J. ;

Cloutis, Edward A. ;

Rozitis, Ben ;

Burbine, Thomas H. ;

Campins, Humberto ;

Clark, Beth Ellen ;

Emery, Joshua P. ;

Hergenrother, Carl W. ;

Howell, Ellen S. ;

Lauretta, Dante S. ;

Nolan, Michael C. ;

Mansfield, Megan ;

Pietrasz, Valerie ;

Polishook, David ;

Scheeres, Daniel J. .

ICARUS, 2015, 256 :22-29

[5] Spectral properties of near-earth objects: Palomar and IRTF results for 48 objects including spacecraft targets (9969) Braille and (10302) 1989 ML [J].

Binzel, RP ;

Harris, AW ;

Bus, SJ ;

Burbine, TH .

ICARUS, 2001, 151 (02) :139-149

[6] Debiased orbital and absolute magnitude distribution of the near-earth objects [J].

Bottke, WF ;

Morbidelli, A ;

Jedicke, R ;

Petit, JM ;

Levison, HF ;

Michel, P ;

Metcalfe, TS .

ICARUS, 2002, 156 (02) :399-433

[7] In search of the source of asteroid (101955) Bennu: Applications of the stochastic YORP model [J].

Bottke, William F. ;

Vokrouhlicky, David ;

Walsh, Kevin J. ;

Delbo, Marco ;

Michel, Patrick ;

Lauretta, Dante S. ;

Campins, Humberto ;

Connolly, Harold C., Jr. ;

Scheeres, Daniel J. ;

Chelsey, Steven R. .

ICARUS, 2015, 247 :191-217

[8] The Yarkovsky and YORP effects: Implications for asteroid dynamics [J].

Bottke, William F., Jr. ;

Vokrouhlicky, David ;

Rubincam, David P. ;

Nesvorny, David .

ANNUAL REVIEW OF EARTH AND PLANETARY SCIENCES, 2006, 34 :157-191

[9] Phase II of the Small Main-belt Asteroid Spectroscopic Survey - The observations [J].

Bus, SJ ;

Binzel, RP .

ICARUS, 2002, 158 (01) :106-145

[10] New candidates for active asteroids: Main-belt (145) Adeona, (704) Interamnia, (779) Nina, (1474) Beira, and near-Earth (162,173) Ryugu [J].

Busarev, Vladimir V. ;

Makalkin, Andrei B. ;

Vilas, Faith ;

Barabanov, Sergey I. ;

Scherbina, Marina P. .

ICARUS, 2018, 304 :83-94

← 1 2 3 4 5 6 →