Results 141 to 150 of about 6,184,520 (197)

Nonmagnetic framboid and associated iron nanoparticles with a space-weathered feature from asteroid Ryugu. [PDF]

Nat Commun
Kimura Y, Kato T, Anada S, Yoshida R, Yamamoto K, Tanigaki T, Akashi T, Kasai H, Kurosawa K, Nakamura T, Noguchi T, Sato M, Matsumoto T, Morita T, Kikuiri M, Amano K, Kagawa E, Yada T, Nishimura M, Nakato A, Miyazaki A, Yogata K, Abe M, Okada T, Usui T, Yoshikawa M, Saiki T, Tanaka S, Terui F, Nakazawa S, Yurimoto H, Okazaki R, Yabuta H, Naraoka H, Sakamoto K, Watanabe SI, Tsuda Y, Tachibana S.   +37 more
europepmc   +1 more source

Fundamental constraints and questions from the study of martian meteorites and the need for returned samples. [PDF]

Proc Natl Acad Sci U S A
Udry A, Ostwald AM, Day JMD, Hallis LJ.
europepmc   +1 more source

An experimental and numerical model of the behavior of cytosine in aqueous solution under gamma radiation. Relevance in prebiotic chemistry. [PDF]

Heliyon
Paredes-Arriaga A, Negrón-Mendoza A, Frias D, Rivera AL, Ramos-Bernal S.   +4 more
europepmc   +1 more source

Igneous processes in the small bodies of the Solar System II: Small satellites and dwarf planets. [PDF]

iScience
Leone G, Tanaka H.
europepmc   +1 more source

Variations of organic functional chemistry in carbonaceous matter from the asteroid 162173 Ryugu. [PDF]

Nat Commun
De Gregorio B, Cody GD, Stroud RM, David Kilcoyne AL, Sandford S, Le Guillou C, Nittler LR, Barosch J, Yabuta H, Martins Z, Kebukawa Y, Okumura T, Hashiguchi M, Yamashita S, Takeichi Y, Takahashi Y, Wakabayashi D, Engrand C, Bejach L, Bonal L, Quirico E, Remusat L, Duprat J, Verdier-Paoletti M, Mostefaoui S, Komatsu M, Mathurin J, Dazzi A, Deniset-Besseau A, Dartois E, Tamenori Y, Suga H, Montagnac G, Kamide K, Shigenaka M, Matsumoto M, Enokido Y, Yoshikawa M, Saiki T, Tanaka S, Terui F, Nakazawa S, Usui T, Abe M, Okada T, Yada T, Nishimura M, Nakato A, Miyazaki A, Yogata K, Yurimoto H, Nakamura T, Noguchi T, Okazaki R, Naraoka H, Sakamoto K, Tachibana S, Watanabe SI, Tsuda Y.   +58 more
europepmc   +1 more source

On the dynamics in the asteroids belt. Part I : General theory

Celestial Mechanics and Dynamical Astronomy, 1990
The classical problem of the dynamics in the asteroids belt is revisited in the light of recently developed perturbation methods. We consider the spatial problem of three bodies both in the circular and in the elliptic case, looking for families of periodic or quasi periodic orbits.
Alessandro Morbidelli, Antonio Giorgilli
semanticscholar   +4 more sources

Statistical Properties of Encounters among Asteroids: A New, General Purpose, Formalism

Icarus, 1998
Abstract The statistical properties of asteroid mutual encounters have been studied by several authors, with the main purpose of estimating collisional rates (and thus mean collisional lifetimes) and the distribution of encounter velocities. In this paper we present a new approach, conceptually not really different with respect to the classical ones,
DELL'ORO, A., PAOLICCHI, PAOLO
semanticscholar   +4 more sources

Satellite Dynamics About Asteroids: Computing Poincaré Maps for the General Case

, 1999
The study of orbital dynamics of spacecraft about non-spherical bodies has usually been restricted to the “planetary” case where the body is close to an oblate spheroid, with only a relatively small degree of equatorial ellipticity. When investigating spacecraft dynamics about asteroids, the situation is drastically different as the asteroid shape is ...
Daniel J. Scheeres
semanticscholar   +4 more sources

Automated Computation of General Perturbations for the Flora Asteroidal Group

Publications of the Astronomical Society of Australia, 1991
AbstractThe general perturbations of the asteroids of the Flora group (975″ < n < 1150″, n - the mean daily motion) due to Jupiter have been automatically computed on an IBM 4341 computer with the Hansen method by manipulating Broucke’s Symbolic Poisson Series Processor, and the results have been compared with that computed previously with the ...
M. F. He, Zhang-Jie
openaire   +3 more sources

Nuclear Explosion Near Surface of Asteroids and Comets - II. General Description of the Phenomenon

Engineering, Construction, and Operations in Space V, 1996
V. Z. Nechai, O. N. Shubin, V. A. Simonenko, V. N. Nogin, D. V. Petrov   +4 more
semanticscholar   +4 more sources