Results 31 to 40 of about 79,926 (240)
, 2011 At present, approximately 1500 asteroids are known to evolve inside or sticked to the exterior 1:2 resonance with Mars at a = 2.418 AU, being (142) Polana the largest member of this group.
Bottke +30 more
core +1 more source
New Paradigms For Asteroid Formation
, 2015 Asteroids and meteorites provide key evidence on the formation of planetesimals in the Solar System. Asteroids are traditionally thought to form in a bottom-up process by coagulation within a population of initially km-scale planetesimals.
Cuzzi, Jeffrey N. +4 more
core +1 more source
NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos [PDF]
, 2015 We present preliminary diameters and albedos for 7,959 asteroids detected in the first year of the NEOWISE Reactivation mission. 201 are near-Earth asteroids (NEAs). 7,758 are Main Belt or Mars-crossing asteroids.
Bauer, J. +9 more
core +2 more sources
Advanced Materials, EarlyView.All‐perovskite tandem solar cells are evaluated under low‐intensity and low‐temperature (LILT) conditions relevant to space environments. Distinct loss regimes emerge, where weaker entropic mixing causes halide segragation below ≈240 K going along with a strong current imbalance, while poor electron transport in C60 dominates.
Sercan Ozen +10 more
wiley +1 more source
Third derivatives of the integrable part of an asteroid Hamiltonian [PDF]
Serbian Astronomical Journal, 2007 To apply the theorem of Nekhoroshev (1977) to asteroids, one first has to check whether a necessary geometrical condition is fulfilled: either convexity, or quasi-convexity, or only a 3-jet non-degeneracy.
Pavlović R.
doaj +1 more source
Dynamics of Polar Resonances and Their Effects on Kozai–Lidov Mechanism
Applied Sciences, 2022 The research on highly inclined mean motion resonances (MMRs), even retrograde resonances, has drawn more attention in recent years. However, the dynamics of polar resonance with inclination i≈90∘ have received much less attention.
Miao Li, Shengping Gong
doaj +1 more source
Asteroid Spin-Rate Study using the Intermediate Palomar Transient Factory [PDF]
, 2015 Two dedicated asteroid rotation-period surveys have been carried out using data taken on January 6-9 and February 20-23 of 2014 by the Intermediate Palomar Transient Factory (iPTF) in the $R$~band with $\sim 20$-min cadence. The total survey area covered
Chang, Chan-Kao +12 more
core +3 more sources
Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization
Advanced Materials Interfaces, EarlyView.Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan +6 more
wiley +1 more source
ASTEROIDS EXPLORATION WITH BALDONE SCHMIDT TELE-SCOPE
Odessa Astronomical Publications, 2018 CCD observations of asteroids were ob-tained in 2008 with the Baldone Schmidt telescope (aper-ture/diameter/focal length = 80/120/240 cm) at the Bal-done Astrophysical observatory (code 069) of the Institute of Astronomy of the University of Latvia.
I. Eglitis
doaj +1 more source
The proximities of asteroids and critical points of the distance function [PDF]
Serbian Astronomical Journal, 2010 The proximities are important for different purposes, for example to evaluate the risk of collisions of asteroids or comets with the Solar-System planets.
Milisavljević Slaviša
doaj +1 more source