Masses of the Main Asteroid Belt and the Kuiper Belt from the Motions of Planets and Spacecraft

被引:40
作者
Pitjeva, E. V. [1 ]
Pitjev, N. P. [1 ,2 ]
机构
[1] RAS, IAA, Nab Kutuzova 10, St Petersburg 191187, Russia
[2] St Petersburg State Univ, Univ Ski Pr 28, St Petersburg 198504, Russia
来源
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 2018年 / 44卷 / 8-9期
关键词
Solar system; main asteroid belt; trans-Neptunian objects; Kuiper belt; planetary ephemerides; SIZE DISTRIBUTION; OBJECTS; EPHEMERIDES; ACCRETION; EPM;
D O I
10.1134/S1063773718090050
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Dynamicalmass estimates for the main asteroid belt and the trans-Neptunian Kuiper belt have been found from their gravitational influence on the motion of planets. Discrete rotating models consisting ofmovingmaterial points have been used tomodel the total attraction fromsmall or as yet undetected bodies of the belts. The masses of the model belts have been included in the set of parameters being refined and determined and have been obtained by processing more than 800 thousand modern positional observations of planets and spacecraft. We have processed the observations and determined the parameters based on the new EPM2017 version of the IAA RAS planetary ephemerides. The large observed radial extent of the belts (more than 1.2 AU for the main belt and more than 8 AU for the Kuiper belt) and the concentration of bodies in the Kuiper belt at a distance of about 44 AU found from observations have been taken into account in the discrete models. We have also used individual mass estimates for large bodies of the belts as well as for objects that spacecraft have approached and for bodies with satellites. Our mass estimate for the main asteroid belt is (4.008 +/- 0.029) x 10(-4)/m(circle plus) (3 sigma). The bulk of the Kuiper belt objects are in the ring zone from 39.4 to 47.8 AU. The estimate of its total mass together with the mass of the 31 largest trans-Neptunian Kuiper belt objects is (1.97 +/- 0.30) x 10(-2)m(circle plus) (3 sigma), which exceeds the mass of the main asteroid belt almost by a factor of 50. The mass of the 31 largest trans-Neptunian objects (TNOs) is only about 40% of the total one.
引用
收藏
页码:554 / 566
页数:13
相关论文
共 50 条
[21]   Formation of the Kuiper Belt by long time-scale migration of Jovian planets [J].
Li, Jian ;
Zhou, Li-Yong ;
Sun, Yi-Sui .
CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS, 2006, 6 (05) :588-596
[22]   Signatures of the giant planets imprinted on the Edgeworth-Kuiper belt dust disk [J].
Liou, JC ;
Zook, HA .
ASTRONOMICAL JOURNAL, 1999, 118 (01) :580-590
[23]   Subaru Main Belt Asteroid Survey (SMBAS)- Size and color distributions of small main-belt asteroids [J].
Yoshida, F. ;
Nakamura, T. .
PLANETARY AND SPACE SCIENCE, 2007, 55 (09) :1113-1125
[24]   Free Inclinations for Trans-Neptunian Objects in the Main Kuiper Belt [J].
Huang, Yukun ;
Gladman, Brett ;
Volk, Kathryn .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2022, 259 (02)
[25]   Ring formation around giant planets by tidal disruption of a single passing large Kuiper belt object [J].
Hyodo, Ryuki ;
Charnoz, Sebastien ;
Ohtsuki, Keiji ;
Genda, Hidenori .
ICARUS, 2017, 282 :195-213
[26]   CAPTURE OF TRANS-NEPTUNIAN PLANETESIMALS IN THE MAIN ASTEROID BELT [J].
Vokrouhlicky, David ;
Bottke, William F. ;
Nesvorny, David .
ASTRONOMICAL JOURNAL, 2016, 152 (02)
[27]   DE-BIASED POPULATIONS OF KUIPER BELT OBJECTS FROM THE DEEP ECLIPTIC SURVEY [J].
Adams, E. R. ;
Gulbis, A. A. S. ;
Elliot, J. L. ;
Benecchi, S. D. ;
Buie, M. W. ;
Trilling, D. E. ;
Wasserman, L. H. .
ASTRONOMICAL JOURNAL, 2014, 148 (03)
[28]   NEPTUNE'S WILD DAYS: CONSTRAINTS FROM THE ECCENTRICITY DISTRIBUTION OF THE CLASSICAL KUIPER BELT [J].
Dawson, Rebekah I. ;
Murray-Clay, Ruth .
ASTROPHYSICAL JOURNAL, 2012, 750 (01)
[29]   Kuiper Belt searches from the Palomar 5-m telescope [J].
Gladman, B ;
Kavelaars, JJ .
ASTRONOMY & ASTROPHYSICS, 1997, 317 (01) :L35-L38
[30]   Populating the asteroid belt from two parent source regions due to the migration of giant planets-"The Grand Tack" [J].
Walsh, Kevin J. ;
Morbidelli, A. ;
Raymond, S. N. ;
O'Brien, D. P. ;
Mandell, A. M. .
METEORITICS & PLANETARY SCIENCE, 2012, 47 (12) :1941-1947