Results 81 to 90 of about 139,946 (272)

Radiative feedback from high-mass X-ray binaries on the formation of the first galaxies and early reionization [PDF]

, 2013
Recent work suggests that the first generation of stars, the so-called Population III (Pop III), could have formed primarily in binaries or as members of small multiple systems.
Myoungwon Jeon, A. Pawlik, V. Bromm, M. Milosavljevic   +3 more
semanticscholar   +1 more source

Engineering Strategies for 2D Layered Tin Halide Perovskite Field‐Effect Transistors

Advanced Functional Materials, EarlyView.
2D halide perovskites are promising candidates for field‐effect transistor (FET) applications due to their high stability and suppressed ion migration in the presence of bulky organic spacers. This review systematically summarizes the optimization engineering strategies of 2D perovskite FETs and future challenges, which provide guidance for developing ...
Shuanglong Wang, Zhitian Ling, Paul W. M. Blom, Tomasz Marszalek, Wojciech Pisula   +4 more
wiley   +1 more source

High-energy emission from jet-clump interactions in microquasars [PDF]

, 2009
High-mass microquasars are binary systems consisting of a massive star and an accreting compact object from which relativistic jets are launched. There is considerable observational evidence that winds of massive stars are clumpy.
A. T. Araudo, Abdo, Aharonian, Aharonian, Aharonian, Albert, Albert, Blumenthal, Bosch-Ramon, Bosch-Ramon, Bosch-Ramon, Bosch-Ramon, Corbel, Fragile, G. E. Romero, Gallo, Hillas, Kelner, Khangulyan, Klein, Krtička, Miller-Jones, Mirabel, Orellana, Paredes, Paredes, Puls, Raga, Reynoso, Ribó, Romero, Romero, Russell, Townsend, V. Bosch-Ramon, Zhekov   +35 more
core   +4 more sources

Identification of the optical counterparts of high-mass x-ray binaries through optical photometry and spectroscopy [PDF]

, 2005
We present the results of our search for optical counterparts to high-mass X-ray transient sources discovered by various X-ray missions. We obtained CCD images of the X-ray fields through BVR and Hα filters to identify early-type stars in the R - Hα ...
P. Reig, P. Reig, I. Negueruela, G. Papamastorakis, G. Papamastorakis, A. Manousakis, T. Kougentakis   +6 more
semanticscholar   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Understanding and Addressing the Performance Asymmetry Issue in Semitransparent Laminated Organic Photovoltaic Devices

Advanced Functional Materials, EarlyView.
This work addresses the challenge of current–voltage asymmetry in scalable laminated semitransparent organic photovoltaics (OPVs) for indoor applications. Vertical stratification of materials is shown to create an energy barrier, leading to performance differences under different illumination directions.
Gulzada Beket, Anton Zubayer, Leonie Pap, Huagui Lai, Samiran Bairagi, Nakul Jain, Jochen Stahn, Fan Fu, Kenneth Järrendahl, Fredrik Eriksson, Xabier Rodríguez‐Martínez, Olle Inganäs, Uli Würfel, Thomas Österberg, Jonas Bergqvist, Feng Gao   +15 more
wiley   +1 more source

Determining the Nature of IC 10 X-2: A Comprehensive Study of the Optical/IR Emission from an Extragalactic BeHMXB

The Astrophysical Journal
We present a comprehensive analysis of the optical and infrared (IR) properties of high-mass X-ray binary (HMXB) IC 10 X-2, classified as a supergiant HMXB and superfast X-ray transient by previous work.
Jwaher Alnaqbi, Joseph D. Gelfand, Payaswini Saikia, Craig Heinke, M. C. Baglio, David M. Russell, Guobao Zhang, Antonios Manousakis, Ivan Yu. Katkov, Fraser Lewis   +9 more
doaj   +1 more source

X-Ray Sources in the Star Forming Galaxies NGC 4194 and NGC 7541

, 2008
We examine the X-ray point source population and 2-10 keV luminosity for two galaxies with high star formation rates (SFRs), NGC 4194 and NGC 7541. The X-ray point source luminosity function (XLF) for these two galaxies is consistent with the XLF found ...
Alonso-Herrero, Almudena, Kaaret, Philip
core   +1 more source

Spectral classification of the mass donors in the high-mass X-ray binaries EXO 1722-363 and OAO 1657-415 [PDF]

, 2009
Aims. We report near-infrared (NIR) observations of the mass donors of the eclipsing high-mass X-ray binary (HMXB) systems EXO 1722-363 and OAO 1657-415 in order to derive their accurate spectral classifications. Methods.
A. B. Mason, J. Clark, A. Norton, I. Negueruela, P. Roche   +4 more
semanticscholar   +1 more source

Precise Quantification of Angiogenesis in 3D Biomaterials Using in Vitro CAM Models: Enhancing 3Rs in Research and Minimizing in Vivo Dependency

Advanced Functional Materials, EarlyView.
The study develops elastin–fibrin scaffolds and evaluates angiogenesis using the chorioallantoic membrane (CAM) model. Advanced imaging with confocal microscopy and Indocyanine Green dye enables precise 3D quantification of vascular networks. Findings demonstrate superior microvessel visualization compared to micro‐CT using Microfil and Optiray 350 ...
Ece Melis Er, Martha Patricia Pérez González, Beatriz Gil Garrido, Jasmine Ho, Hae‐Won Kim, Jonathan Campbell Knowles, Jia Hua, Ferdinand Lali, Prasad Sawadkar   +8 more
wiley   +1 more source