Results 11 to 20 of about 6,968,082 (173)
DreamSat-2.0: Towards a General Single-View Asteroid 3D Reconstruction
CoRRTo enhance asteroid exploration and autonomous spacecraft navigation, we introduce DreamSat-2.0, a pipeline that benchmarks three state-of-the-art 3D reconstruction models-Hunyuan-3D, Trellis-3D, and Ouroboros-3D-on custom spacecraft and asteroid ...
Santiago Diaz +5 more
semanticscholar +3 more sources
Antero-posterior patterning in the brittle star Amphipholis squamata and the evolution of echinoderm body plans [PDF]
EvodevoAlthough the adult pentaradial body plan of echinoderms evolved from a bilateral ancestor, identifying axial homologies between the morphologically divergent echinoderms and their bilaterian relatives has been an enduring problem in zoology.
L. Formery +4 more
semanticscholar +2 more sources
Deficit of primitive compositions in binary asteroids and pairs [PDF]
Astronomy & Astrophysics, 2023 Context. Small binary asteroid systems and pairs are thought to form through fission induced by spin up via the Yarkovsky-O'Keefe-Radzievskii-Paddack (YORP) effect. This process is expected to depend on their structural strength, hence composition. Aims.
K. Minker, B. Carry
semanticscholar +1 more source
The accuracy of mutual potential approximations in simulations of binary asteroids [PDF]
Astronomy & Astrophysics, 2023 Simulations of asteroid binaries commonly use mutual gravitational potentials approximated by series expansions, leading to truncation errors, and also preventing correct computations of the forces and torques when the bodies are close.
A. Ho +3 more
semanticscholar +1 more source
A Deep and Wide Twilight Survey for Asteroids Interior to Earth and Venus [PDF]
Astronomical Journal, 2022 We are conducting a survey using twilight time on the Dark Energy Camera with the Blanco 4 m telescope in Chile to look for objects interior to Earth’s and Venus’ orbits. To date we have discovered two rare Atira/Apohele asteroids, 2021 LJ4 and 2021 PH27,
S. Sheppard +19 more
semanticscholar +1 more source
A polarimetric study of asteroids in comet-like orbits [PDF]
Astronomy & Astrophysics, 2021 Context. Asteroids in comet-like orbits (ACOs) consist of asteroids and dormant comets. Due to their similar appearance, it is chal- lenging to distinguish dormant comets from ACOs via general telescopic observations.
J. Geem +18 more
semanticscholar +1 more source
Nature Communications, 2022 Asteroid interiors play a key role in our understanding of asteroid formation and evolution. As no direct interior probing has been done yet, characterisation of asteroids’ interiors relies on interpretations of external properties.
Yun Zhang +9 more
semanticscholar +1 more source
Monthly notices of the Royal Astronomical Society, 2023 The ephemerides of minor planets are computed on the basis of astrometric observations. The asteroid Orbit Determination process requires these observations to be properly weighted to take into account the expected accuracy of the data. If not directly
N. Stronati +3 more
semanticscholar +1 more source
Transmission of a Seismic Wave Generated by Impacts on Granular Asteroids
The Planetary Science Journal, 2022 Abstract In this paper, we use a soft-sphere discrete element method code to simulate the transmission and study the attenuation of a seismic wave. Then, we apply our findings to the different space missions that have had to touch the surface of different small bodies in the solar system.
Paul Sánchez +2 more
openaire +2 more sources
, 2021 D-type asteroids are a prime example of the many dark, low-albedo asteroids which do not reflect sufficient light to reveal detectable mineral absorptions.
G. Gartrelle +3 more
semanticscholar +1 more source