Results 71 to 80 of about 120,169 (292)
Simulations for Planning Next-generation Exoplanet Radial Velocity Surveys
The Astronomical Journal, 2023 Future direct imaging missions similar to the HabEx and LUVOIR mission concepts aim to catalog and characterize Earth-mass analogs around nearby stars.
Patrick D Newman +8 more
doaj +1 more source
Beyond the diffraction limit via optical amplification
, 2016 In a previous article we suggested a method to overcome the diffraction limit behind a telescope. We refer to theory and recent numerical simulations, and test whether it is indeed possible to use photon amplification to enhance the angular resolution of
Kellerer, Aglae N., Ribak, Erez N.
core +1 more source
Multi-Color Temperature and Magnitude Simulation for Astronomical Spectral Velocity Measurement
IEEE Access, 2023 The simulation of terrestrial stellar radiation information suffers from distortions due to limited precision of stellar spectrum and magnitude simulations. Hence, the effective verification and evaluation of experimental conditions for new techniques such as astronomical spectral velocity measurement and navigation are hindered.
Qiang Liu +10 more
openaire +2 more sources
Advanced Materials, EarlyView.The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley +1 more source
The Astrophysical JournalWe model the interstellar dust content of the reionization era with a suite of cosmological, fluid-dynamical simulations of galaxies with stellar masses ranging from ∼10 ^5 to 10 ^9 M _⊙ in the first 1.2 Gyr of the Universe.
Clarke J. Esmerian, Nickolay Y. Gnedin
doaj +1 more source
Advanced Materials, EarlyView.The magnetic high entropy oxide perovskite Nd(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3 exhibits a substantially large dielectric constant (εr) at room temperature, which shows distinct anionic and cationic contributions in the form of zero and finite bias peaks, respectively, down to its magnetic transition temperature (Tmag).
Roxana Capu +19 more
wiley +1 more source
, 2017 The purpose of this article is to alert Astronomers, particularly those using spectroscopic surveys, to the fact that exotic astronomical objects (e.g. quasars or active galactic nuclei) that send ultra-rapid quasi periodic pulses of optical light would ...
Borra, E. F.
core +1 more source
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
Slim accretion disks: theory and observational consequences
, 2019 Slim accretion disks idea emerged over 30 years ago as an answer to several unsolved problems. Since that time there was a tremendous increase in the amount of observational data where this model applies.
Czerny, Bozena
core +1 more source
Magnetically Actuated Drops‐on‐Stilts Microrobots for Transport and Delivery of Hydrophobic Cargo
Advanced Materials Interfaces, EarlyView.Iron oxide nanoparticles and oil droplets in external magnetic fields form “drops‐on‐stilts” microrobots that transport hydrophobic cargo. Tunable nanoparticle–droplet interactions generate stilt‐like structures. Field rotation enables walking, obstacle navigation, and collective motion.
Oluwafemi Ligan +9 more
wiley +1 more source