Results 71 to 80 of about 1,052,795 (334)
A Survey for Massive Giant Planets in Debris Disks with Evacuated Inner Cavities [PDF]
, 2007 The commonality of collisionally replenished debris around main sequence stars suggests that minor bodies are frequent around Sun-like stars. Whether or not debris disks in general are accompanied by planets is yet unknown, but debris disks with large inner cavities - perhaps dynamically cleared - are considered to be prime candidates for hosting large-
arxiv +1 more source
Are mirror planets opaque? [PDF]
Phys.Lett.B505:1-5,2001, 2001 Over the last few years, many close orbiting ($\sim 0.05$ A.U.) large mass planets ($\sim M_{J}$) of nearby stars have been discovered. Their existence has been inferred from tiny Doppler shifts in the light from the star and in one case a transit has been observed.
arxiv +1 more source
Optical Control of Ferroelectric Imprint in BiFeO3
Advanced Functional Materials, EarlyView.Above‐bandgap irradiation at room temperature enables on‐demand optical control of defect‐driven built‐in electric fields in BiFeO₃ thin films, fabricated via scalable, chemical spray pyrolysis. These fields, otherwise “frozen‐in,” can cause severe device degradation, including non‐switchable polarization, dead layers near interfaces, and polarization ...
Haoze Zhang +8 more
wiley +1 more source
The Supplemental IRAS Minor Planet Survey
, 2002 We present additional and revised IRAS diameters and albedos for the 1992 IRAS Minor Planet Survey (IMPS). Using orbital elements for 26,791 numbered asteroids, we found 2228 different multiply observed asteroids associated with IRAS sources, an increase
E. Tedesco, P. Noah, M. Noah, S. Price
semanticscholar +1 more source
The Chemical Composition of an Extrasolar Minor Planet [PDF]
, 2007 We report the relative abundances of 17 elements in the atmosphere of the white dwarf star GD 362, material that, very probably, was contained previously in a large asteroid or asteroids with composition similar to the Earth-Moon system. The asteroid may
B. Zuckerman +4 more
semanticscholar +1 more source
Pushing Radiative Cooling Technology to Real Applications
Advanced Materials, EarlyView.Radiative cooling controls surface optical properties for solar and thermal radiation, offering solutions for global warming and energy savings. Despite significant advances, key challenges remain: optimizing optical efficiency, maintaining aesthetics, preventing overcooling, enhancing durability, and enabling scalable production.
Chongjia Lin +8 more
wiley +1 more source
MINOR PLANET 2002 EX12 (=169P/NEAT) AND THE ALPHA CAPRICORNID SHOWER
, 2010 Minor planet 2002 EX12 (=comet 169P/NEAT) is identified as the parent body of the alpha Capricornid shower, based on a good agreement in the calculated and observed direction and speed of the approaching meteoroids for ejecta 4500–5000 years ago.
P. Jenniskens, J. Vaubaillon
semanticscholar +1 more source
Bioinspired Nanoscale 3D Printing of Calcium Phosphates Using Bone Prenucleation Clusters
Advanced Materials, EarlyView.This study develops a bone‐bioinspired photoresin containing PNCs of calcium phosphates, enabling nanoscale precision via 2pp. This novel approach allows for 2D patterning and 3D nanostructuring of CaPs with intricate geometries. The technique offers unparalleled control over scaffold design and porosity, paving the way for advanced applications in ...
Iman Roohani +6 more
wiley +1 more source
Chemical Diversity of Super-Earths As a Consequence of Formation [PDF]
, 2020 Recent observations of rocky super-Earths have revealed an apparent wider distribution of Fe/Mg ratios, or core to mantle ratios, than the planets in our Solar System. This study aims to understand how much of the chemical diversity in the super-Earth population can arise from giant impacts during planetary formation.
arxiv +1 more source
Colored Radiative Cooling: from Photonic Approaches to Fluorescent Colors and Beyond
Advanced Materials, EarlyView.Colored radiative cooling (CRC) has become a prevailing technology for achieving colorful appearance and simultaneously enhancing the effective solar reflectance of cooling coatings. This review presents recent advancements in CRC and its profound impact on energy savings in real‐world applications.
Tao Wang +5 more
wiley +1 more source