Results 11 to 20 of about 256 (139)

Distribution Inference for Physical and Orbital Properties of Jupiter’s Moons

Advances in Astronomy, Volume 2018, Issue 1, 2018., 2018
According to the physical and orbital characteristics in Carme group, Ananke group, and Pasiphae group of Jupiter’s moons, the distributions of physical and orbital properties in these three groups are investigated by using one‐sample Kolmogorov–Smirnov nonparametric test.
F. B. Gao, X. H. Zhu, X. Liu, R. F. Wang, Geza Kovacs   +4 more
wiley   +1 more source

Trans-Neptunian Object Colors as Evidence for a Past Close Stellar Flyby to the Solar System

The Astrophysical Journal Letters
Thousands of small bodies, known as trans-Neptunian objects (TNOs), orbit the Sun beyond Neptune. TNOs are remnants of the planets’ formation from a disk of gas and dust, so it is puzzling that they move mostly on eccentric orbits inclined to the ...
Susanne Pfalzner, Frank W. Wagner, Paul Gibbon   +2 more
doaj   +1 more source

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

Astronomische Nachrichten, Volume 347, Issue 7, August 2026.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth, Paško Roje, Stella Vješnica, Stefan Cikota, Alex J. Brown, Mike Kretlow, Marco Azzaro, Santiago Reinhart, Jesús Aceituno, Harry Dawson, Carsten Denker, Torsten Enßlin, Stephan Geier, Thomas Granzer, Thomas Kupfer, Gianluca Li Causi, Samaya Nissanke, José Luis Ortiz, Fernando Pedichini, Katja Poppenhäger, Axel Schwope   +20 more
wiley   +1 more source

Optimal Trajectory Determination and Mission Design for Asteroid/Deep‐Space Exploration via Multibody Gravity Assist Maneuvers

International Journal of Aerospace Engineering, Volume 2017, Issue 1, 2017., 2017
This paper discusses the creation of a genetic algorithm to locate and optimize interplanetary trajectories using gravity assist maneuvers to improve fuel efficiency of the mission. The algorithm is implemented on two cases: (i) a Centaur‐class target close to the ecliptic plane and (ii) a Centaur‐class target with a high inclination to the ecliptic ...
Sean Fritz, Kamran Turkoglu, Angel Velazquez   +2 more
wiley   +1 more source

Cleaning TESS Images to Reveal Solar System Objects

The Planetary Science Journal
We investigate methods of generating image subtraction templates that are suitable for slow-moving object searches with data from NASA’s TESS mission.
Mike Alexandersen, Matthew J. Holman, Matthew J. Payne   +2 more
doaj   +1 more source

Raman analysis of organic refractory materials after energetic processing: Evidence for amorphous carbon on TNOs and comets

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1994-2015, August 2026.
Abstract Amorphous carbon (αC) is found in various extraterrestrial particles, including those thought to originate from the outer Solar System. αC can form through two main processes involving C‐rich materials: exposure to energetic charged particles and thermal processing.
M. Germanà, A. Vyjidak, G. A. Baratta, B. M. Giuliano, R. G. Urso, C. Scirè, D. Fulvio, T. Grassi, P. Jusko, P. Caselli, M. E. Palumbo   +10 more
wiley   +1 more source

High‐Order Analytic Expansion of Disturbing Function for Doubly Averaged Circular Restricted Three‐Body Problem

Advances in Astronomy, Volume 2016, Issue 1, 2016., 2016
Terms in the analytic expansion of the doubly averaged disturbing function for the circular restricted three‐body problem using the Legendre polynomial are explicitly calculated up to the fourteenth order of semimajor axis ratio (α) between perturbed and perturbing bodies in the inner case (α < 1), and up to the fifteenth order in the outer case (α > 1)
Takashi Ito, Elbaz I. Abouelmagd
wiley   +1 more source

The New Horizons Extended Mission Target: Arrokoth Search and Discovery

The Planetary Science Journal
Following the Pluto flyby of the New Horizons spacecraft, the mission provided a unique opportunity to explore the Kuiper Belt in situ. The possibility existed to fly by a Kuiper Belt object (KBO), as well as to observe additional objects at distances ...
Marc W. Buie, John R. Spencer, Simon B. Porter, Susan D. Benecchi, Alex H. Parker, S. Alan Stern, Michael Belton, Richard P. Binzel, David Borncamp, Francesca DeMeo, S. Fabbro, Cesar Fuentes, Hisanori Furusawa, Tetsuharu Fuse, Pamela L. Gay, Stephen Gwyn, Matthew J. Holman, H. Karoji, J. J. Kavelaars, Daisuke Kinoshita, Satoshi Miyazaki, Matt Mountain, Keith S. Noll, David J. Osip, Jean-Marc Petit, Neill I. Reid, Scott S. Sheppard, Mark Showalter, Andrew J. Steffl, Ray E. Sterner, Akito Tajitsu, David J. Tholen, David E. Trilling, Harold A. Weaver, Anne J. Verbiscer, Lawrence H. Wasserman, Takuji Yamashita, Toshifumi Yanagisawa, Fumi Yoshida, Amanda M. Zangari   +39 more
doaj   +1 more source

Defining soil: Proposals of zero‐states, active layer, and págousols (from ice parent materials) to fundamentally expand soil science

Soil Science Society of America Journal, Volume 90, Issue 2, March/April 2026.
Abstract Recent publications in soil science have reopened discussions over how soil and soil science should be defined, reflecting productive tension between historical constructs and the evolving frontiers of the discipline. While new definitions offered over the past decade provide valuable perspectives, they inevitably rely on past conventions and ...
Aaron Lee M. Daigh
wiley   +1 more source

Production of Oxidants by Ion Bombardment of Icy Moons in the Outer Solar System

Advances in Astronomy, Volume 2011, Issue 1, 2011., 2011
Our groups in Brazil, France and Italy have been active, among others in the world, in performing experiments on physical‐chemical effects induced by fast ions colliding with solids (frozen gases, carbonaceous and organic materials, silicates, etc.) of astrophysical interest. The used ions span a very large range of energies, from a few keV to hundreds
Philippe Boduch, Enio Frota da Silveira, Alicja Domaracka, Oscar Gomis, Xue Yang Lv, Maria Elisabetta Palumbo, Sergio Pilling, Hermann Rothard, Eduardo Seperuelo Duarte, Giovanni Strazzulla, Francois Dulieu   +10 more
wiley   +1 more source