Results 61 to 70 of about 172,436 (251)

Policy opportunities [PDF]

Recommendations are given regarding National Science Foundation (NSF) astronomy programs and the NASA Space Astrophysics program. The role of ground based astronomy is reviewed.
Acton, Loren W., Bahcall, Neta A., Bless, Robert C., Brown, Robert A., Burbidge, Geoffrey, Burke, Bernard F., Clark, George W., Cordova, France A., Mccray, Richard, Ostriker, Jeremiah P.   +9 more
core   +1 more source

Flexible and High‐Performance Perovskite‐Polymer Composites for Dual X‐Ray and Proton Direct Detection

Advanced Optical Materials, EarlyView.
A polymer–perovskite composite obtained by mechanochemical synthesis enables thick, tunable active layers for efficient absorption of highly penetrating ionizing radiation. Vertical‐electrode detectors achieve low X‐ray detection limits and high sensitivity direct 5 MeV proton sensing.
Camilla Bordoni, Bas A. H. Huisman, Joost W. C. Reinders, Ilaria Fratelli, Massimo Chiari, Laura Basiricò, Henk J. Bolink, Andrea Ciavatti, Michele Sessolo, Beatrice Fraboni   +9 more
wiley   +1 more source

Progress of radio occultation exploration of Mars

地球与行星物理论评
Mars is the sister star of Earth. Studying Mars is important to understand its evolution as well as that of Earth and even the solar system. Since the launch of American Mariner 4 in 1964 and the first successful use of radio occultation technology to ...
Luo Xiao, Cunying Xiao, Xiong Hu, Xiaocheng Wu, Zewei Wang, Xiaoqi Wu   +5 more
doaj   +1 more source

Working Papers: Astronomy and Astrophysics Panel Reports [PDF]

The papers of the panels appointed by the Astronomy and Astrophysics survey Committee are compiled. These papers were advisory to the survey committee and represent the opinions of the members of each panel in the context of their individual charges. The
Bahcall, John N., Beichman, Charles A., Canizares, Claude, Cronin, James, Heeschen, David, Houck, James, Hunten, Donald, Mckee, Christopher F., Noyes, Robert, Ostriker, Jeremiah P.   +9 more
core   +1 more source

Multi‐Dielectric Metasurfaces for Ultrabright, Tunable Structural Color and Reconfigurable Optical Filtering with Extraordinarily Large Color Span

Advanced Optical Materials, EarlyView.
Structural color generation is an emerging field for digital display and printing applications. This report presents a novel truncated‐cone design and the first use of GaP sandwiched between two layers of TiO2, demonstrating ultra‐bright, tunable colors with a record color gamut.
Md Rumon Miah, Yavuz Selim Aydın, Hilmi Volkan Demir   +2 more
wiley   +1 more source

Thermal-timescale accretion does not always yield critical rotation in mass gainers

Astronomy & Astrophysics
Binary evolution plays a central role in producing rapidly rotating stars. Previous studies have shown that mass gainers in binaries can reach critical rotation after accreting only modest amounts of material, particularly during thermal-timescale Case B
Wang Chen, Lau Mike Y. M., Li Xiang-Dong, Langer Norbert, de Mink Selma E., Valli Ruggero, Justham Stephen, Xu Xiao-Tian, Klencki Jakub, Ryu Taeho   +9 more
doaj   +1 more source

Laboratory Astrophysics Division of the AAS (LAD) [PDF]

, 2012
The purpose of the Laboratory Astrophysics Division (LAD) is to advance our understanding of the Universe through the promotion of fundamental theoretical and experimental research into the underlying processes that drive the Cosmos.
Drake, R. P., Federman, S. R., Haxton, W. C., Salama, Farid, Savin, D. W.   +4 more
core   +1 more source

Space Weather and Solar Wind Studies with OWFA

, 2017
In this paper, we review the results of interplanetary scintillation (IPS) observations made with the legacy system of the Ooty Radio Telescope (ORT) and compare them with the possibilities opened by the upgraded ORT, the Ooty Wide Field Array (OWFA ...
Chengalur, J. N., Manoharan, P. K., Subrahmanya, C. R.   +2 more
core   +1 more source

2D Copper MOF Membranes with Precise Pores for Ionic Memory

Advanced Science, EarlyView.
 . ABSTRACT Biological ion channels play a critical role in the complex physiological processes of living organisms. Inspired by these natural systems, we demonstrate the fabrication of ultrathin 2D copper‐based metal‐organic framework (CuMOF) films and their application to mimic key functionalities of biological membranes. Using a liquid–air interface
Hiran Jyothilal, Raj Kumar Gogoi, Yuchen Liu, Vikas Sharma, Solleti Goutham, Michael Hutton, Rachel C. Kilbride, Daniel T.W. Toolan, Ashok Keerthi, Boya Radha   +9 more
wiley   +1 more source

Direct Photocurrent Detection of Optical Vortex Based on the Orbital Photo Galvanic Effect: Progress, Challenge, and Perspective

Advanced Science, EarlyView.
Direct orbital angular momentum (OAM) detection through the orbital photogalvanic effect offers a scalable route for integrated optoelectronics. This perspective evaluates symmetry‐driven material selection and demonstrates how electrode matrices enable the resolution of complex, mixed OAM modes.
Jinluo Cheng, Dehong Yang, Weiming Wang, Chang Xu, Zipu Fan, Dong Sun   +5 more
wiley   +1 more source