Results 101 to 110 of about 41,083 (310)

Improvements to MOS CCD technology for future X-ray astronomy missions

, 2008
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis is concerned with the development of MOS charge-coupled device (CCD) technology for future applications in X-ray astronomy.
Murray, Neil John
core  

Rasch data evaluating an astronomy course

, 2018
<p>Binary data on 12 items for Rasch analysis for the evaluation of an astronomy course.</p ...
Evi Panou, Athanasios Verdis, Spryridon Kokkotas   +2 more
core   +1 more source

In Situ Pseudo‐Halide Diffusion Enables Buried Interface Regulation and Crystallinity Enhancement in Perovskite Solar Cells

Advanced Science, EarlyView.
Thermally activated LiHCOO induces in situ pseudo‐halide diffusion, promoting buried interface strain release and perovskite crystallization. The monoclinic LiHCOO phase forms an open framework structure that enhances HCOO− diffusion and drives interfacial restructuring.
Chao Gao, Li He, Changjiang Li, Long Fang, Wenzhong Shen   +4 more
wiley   +1 more source

Mapping the Galaxy Color–Star Formation Rate Relation with Manifold Learning and Infrared Image Stacking

The Astrophysical Journal
Modern surveys present us with billions of faint galaxies for which we only have broadband images in ∼6–8 optical-to-near-infrared (NIR) filters. Galaxy star formation rates (SFRs) are difficult to estimate accurately without spectroscopic diagnostics or
Yu-Heng Lin, Daniel Masters, Andreas L. Faisst, Harry Teplitz, Olivier Ilbert, Matthieu Bethermin, Shoubaneh Hemmati, Vihang Mehta, Jason D. Rhodes, Gregory L. Walth   +9 more
doaj   +1 more source

Machine Learning Accelerated Non‐Adiabatic Molecular Dynamics Elucidates Local Polarization Effects on Non‐radiative Recombination in Halide Perovskites

Advanced Science, EarlyView.
This work proposes and constructs the Hefei‐NAMD‐S framework based on machine learning stacked models to investigate the relationship between local polarization and non‐radiative recombination. The results indicate that, compared with A‐site local polarization, B‐site local polarization shows a more evident association with the non‐radiative ...
Bing Yang, Xiaoli Wei, Bo Cai, Yan Yang, Xinghai Zhu, Yi Liu, Junmin Xia, Lihui Liu, Kun Cao, Wei Shen, Pengfei Xia, Shufen Chen, Siyu Chen, Jin Zhao   +13 more
wiley   +1 more source

Search for Kink Events in Variable Fermi-LAT Blazars

The Astrophysical Journal
This study explores the detection of quasiperiodic oscillations (QPOs) in blazars as a method to identify kink events within their jets, utilizing both γ -ray and polarized light observations. Focusing on a sample of nine blazars, we analyze γ -ray light
P. Peñil, H. Zhang, J. Otero-Santos, M. Ajello, S. Buson, S. Adhikari, A. Rico, J. Escudero Pedrosa, I. Agudo, D. Morcuende, A. Sota, V. Casanova, F. J. Aceituno   +12 more
doaj   +1 more source

Data Analysis and Simulations of the Large Data Sets in the Galactic Astronomy

, 2011
In the last decades large data sets covering a wide range of both resolution and observed regions have been accumulated in the Astronomy. Follow-up technology involving the storage and the access to these data is also necessary to develop methods and tools that will allow their usage. In this chapter, I will review the use of the large data sets in the
openaire   +2 more sources

Middle School Students’ Misconceptions about the Concepts of Astronomy

, 2018
The purpose of the current study is to conduct developmental comparison of the middle school students’ misconceptions about the concepts of astronomy. The sampling of the study is comprised of middle school students attending a private school located in ...
Gorecek Baybars, Meryem, Can, Sendil
core  

Unconventional Hysteretic Charge Filling in Moiré‐Reconstructed Helical Trilayer Graphene

Advanced Science, EarlyView.
In helical trilayer graphene, sequential twisting reconstructs the moiré landscape into periodic domains separated by aperiodic boundaries. Longitudinal transport reveals sweep‐direction‐dependent hysteresis, while the Hall response traces this behavior to hysteretic charge filling at the aperiodic boundaries.
Hangyeol Park, Junhyeok Oh, Rasoul Ghadimi, Chiranjit Mondal, Yungi Jeong, Won Beom Choi, Kenji Watanabe, Takashi Taniguchi, Bohm‐Jung Yang, Joonho Jang   +9 more
wiley   +1 more source

Predicting Stellar Parameters of Massive Stars from Light Curves with Machine Learning

The Astrophysical Journal
High-resolution spectroscopic measurements of OB stars are important for understanding processes like stellar evolution but require labor-intensive observations.
Rachel C. Zhang, Kaze W. K. Wong, Gonzalo Holgado, Matteo Cantiello   +3 more
doaj   +1 more source