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Low-speed impact simulations into regolith in support of asteroid sampling mechanism design I:Comparison with 1-g experiments
Asteroids Surfaces Collisional physics Granular material Sampling mechanism Geological processes Regoliths
2015/12/25
This study is carried out in the framework of sample-return missions to asteroids that use a low-speed projectile as the primary component of its sampling mechanism (e.g., JAXA’s Hayabusa and Hayabusa...
Earlier this year, astronomers discovered what appeared to be a pair of supermassive black holes circling toward a collision so powerful it would send a burst of gravitational waves surging through th...
Pressure support versus thermal broadening in the Lyman alpha forest - I. Effects of the equation of state on longitudinal structure
low-density intergalactic gas temperature
2014/12/22
In the low-density intergalactic medium that gives rise to the Lyman α (Lyα) forest, gas temperature and density are tightly correlated. The velocity scale of thermal broadening and the Hubble flow ac...
Controversial Clues of Two 'Goldilocks Planets' That Might Support Life are Proven False
Dwarfs Liquid water Stars Rock The planets Radiation Astrophysics
2014/7/18
03 July 2014 — Mysteries about controversial signals coming from a dwarf star considered to be a prime target in the search for extraterrestrial life now have been solved in research led by scientists...
Classifying structures in the ISM with Support Vector Machines: the G16.05-0.57 supernova remnant
Classifying structures Support Vector Machines supernova remnant
2011/10/20
We apply Support Vector Machines -- a machine learning algorithm -- to the task of classifying structures in the Interstellar Medium. As a case study, we present a position-position velocity data cube...
Non Thermal Support for the Outer Intracluster Medium
Non Thermal the Outer Intracluster Medium
2011/1/10
We submit that non thermalized support for the outer intracluster medium in relaxed galaxy clusters is provided by turbulence, driven by inflows of intergalactic gas across the virial accretion shocks...
Theoretical Support for the Hydrodynamic Mechanism of Pulsar Kicks
High Energy Astrophysical Phenomena (astro-ph.HE) Solar and Stellar Astrophysics (astro-ph.SR) High Energy Physics - Phenomenology (hep-ph)
2010/12/24
The collapse of a massive star's core, followed by a neutrino-driven, asymmetric supernova explosion, can naturally lead to pulsar recoils and neutron star kicks.
The BOOTES experiment in support of the Gran Telescopio Canarias (GTC) in the study of the high energy Universe
Gran Telescopio Canarias energy Universe GAMMA RAYS
2009/6/11
The BOOTES experiment in support of the Gran Telescopio Canarias (GTC) in the study of the high energy Universe。
Can Magnetic Fields Support Molecular Clouds?
Collapse and fragmentation models of cloud cores with magnetic field support
cloud cores magnetic field support
2009/6/4
Collapse and fragmentation models of cloud cores with magnetic field support。
Life support systems represent a critical element of human missions to Mars that potentially could require huge amounts of mass. Current life support technology for space stations are inadequate for t...
Extracting scientific results from robotic arm support operations：A technique for estimating the density and composition of rocks on Mars
rock pushing activities Mars density
2009/6/1
This contribution presents the unique technique of using rock pushing activities to estimate the densities of rocks remotely.