Results 71 to 80 of about 2,827,182 (371)
UniverseRadio-loud high-redshift quasars (RHRQs) provide crucial insights into the evolution of relativistic jets and their connection to the growth of supermassive black holes.
Yingkang Zhang +7 more
doaj +1 more source
Observations of diffuse fluxes of cosmic neutrinos
, 2016 In this contribution the current observational results for the diffuse flux of high-energy astrophysical neutrinos are reviewed. In order to understand the science implications, the measurements in different detection channels are discussed and results ...
Wiebusch, Christopher H.
core +1 more source
Ice Lithography: Recent Progress Opens a New Frontier of Opportunities
Advanced Functional Materials, EarlyView.This review focuses on recent advancements in ice lithography, including breakthroughs in compatible precursors and substrates, processes and applications, hardware, and digital methods. Moreover, it offers a roadmap to uncover innovation opportunities for ice lithography in fields such as biological, nanoengineering and microsystems, biophysics and ...
Bingdong Chang +9 more
wiley +1 more source
Automated Scheduling of Doppler Exoplanet Observations at Keck Observatory
The Astronomical JournalPrecise Doppler studies of extrasolar planets require fine-grained control of observational cadence, i.e., the timing of and spacing between observations.
Luke B. Handley +4 more
doaj +1 more source
Investigating Stellar Variability in the Open Cluster Region NGC 381
The Astronomical Journal, 2023 We study variable stars in the field of the open cluster NGC 381 using photometric data observed over 27 nights and identify a total of 57 variable stars, six of which are member stars. The variable stars are classified based on their periods, amplitudes,
Jayanand Maurya +3 more
doaj +1 more source
Photonic Engineering Enables All‐Passive Upconversion Imaging with Low‐Intensity Near‐Infrared Light
Advanced Functional Materials, EarlyView.A passive upconversion imaging system enables the observation of scenes illuminated by low‐intensity incoherent near‐infrared light from 750 to 930 nm, by converting it into the visible without the use of external power. The upconverter is enabled by triplet–triplet annihilation in a bulk heterojunction, with absorption enhanced by plasmonic resonators
Rabeeya Hamid +13 more
wiley +1 more source
Diversity in Fermi/GBM Gamma-Ray Bursts: New Insights from Machine Learning
The Astrophysical JournalClassification of gamma-ray bursts (GRBs) has been a long-standing puzzle in high-energy astrophysics. Recent observations challenge the traditional short versus long viewpoint, where long GRBs are thought to originate from the collapse of massive stars ...
Dimple, K. Misra, K. G. Arun
doaj +1 more source
Optical Synoptic Telescopes: New Science Frontiers
, 2010 Over the past decade, sky surveys such as the Sloan Digital Sky Survey have proven the power of large data sets for answering fundamental astrophysical questions.
Tyson, J. Anthony
core +1 more source
Advanced Functional Materials, EarlyView.Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey +5 more
wiley +1 more source
Recent Advances in Cosmological Hydrogen Reionization
, 2012 I discuss recent advances in the study of hydrogen reionization, focusing on progress that was achieved during the years 2010-2011. First, I discuss recent measurements of the progress of reionization.
Finlator, Kristian
core +1 more source