trojan asteroid
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2022 ◽  
Vol 6 (1) ◽  
pp. 10
Author(s):  
Tom Seccull

Abstract The Jupiter Trojan asteroid 128383 (2004 JW52) was recently reported to have optical colors that are incongruous with its dynamical class. New and archival observations show that this is not the case. This is a reminder that we must always rule out the possibility that the Point-Spread Function of a minor planet is blended with that of a background sidereal source in survey images before its colors in the associated survey catalog can be considered reliable.


2022 ◽  
Author(s):  
Erik J. Lessac-Chenen ◽  
Coralie D. Adam ◽  
Derek Nelson ◽  
John Pelgrift ◽  
Eric Sahr ◽  
...  

2021 ◽  
Vol 252 (3362) ◽  
pp. 14
Author(s):  
Leah Crane
Keyword(s):  

2020 ◽  
Vol 1 (2) ◽  
pp. 44
Author(s):  
K. S. Noll ◽  
M. E. Brown ◽  
H. A. Weaver ◽  
W. M. Grundy ◽  
S. B. Porter ◽  
...  
Keyword(s):  

2020 ◽  
Vol 30 (02) ◽  
pp. 2030003 ◽  
Author(s):  
J. E. Osorio-Vargas ◽  
Guillermo A. González ◽  
F. L. Dubeibe

In this paper, we extend the basic equilateral four-body problem by introducing the effect of radiation pressure, Poynting–Robertson drag, and solar wind drag. In our setup, three primaries lie at the vertices of an equilateral triangle and move in circular orbits around their common center of mass. Here, one of the primaries is a radiating body and the fourth body (whose mass is negligible) does not affect the motion of the primaries. We show that the existence and the number of equilibrium points of the problem depend on the mass parameters and radiation factor. Consequently, the allowed regions of motion, the regions of the basins of convergence for the equilibrium points, and the basin entropy will also depend on these parameters. The present dynamical model is analyzed for three combinations of mass for the primaries: equal masses, two equal masses, different masses. As the main results, we find that in all cases the libration points are unstable if the radiation factor is larger than 0.01 and hence able to destroy the stability of the libration points in the restricted four-body problem composed by the Sun, Jupiter, Trojan asteroid and a test (dust) particle. Also, we conclude that the number of fixed points decreases with the increase of the radiation factor.


2018 ◽  
Vol 161 ◽  
pp. 99-106 ◽  
Author(s):  
Tatsuaki Okada ◽  
Yoko Kebukawa ◽  
Jun Aoki ◽  
Jun Matsumoto ◽  
Hajime Yano ◽  
...  
Keyword(s):  

Author(s):  
Jun MATSUMOTO ◽  
Chisato OKAMOTO ◽  
Yusuke OKI ◽  
Takuma NAKAMURA ◽  
Jun AOKI

Author(s):  
Osamu MORI ◽  
Jun MATSUMOTO ◽  
Toshihiro CHUJO ◽  
Hideki KATO ◽  
Takanao SAIKI ◽  
...  

2017 ◽  
Vol 60 (11) ◽  
pp. 2505-2517 ◽  
Author(s):  
Hanlun Lei ◽  
Bo Xu ◽  
Lei Zhang

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