Results 41 to 50 of about 23,728,769 (259)

Physics of Binary Star Evolution -- from Stars to X-ray Binaries and Gravitational Wave Sources [PDF]

, 2023
The majority of all stars are members of a binary system. The evolution of such binary stars and their subsequent production of pairs of compact objects in tight orbits, such as double neutron stars and double black holes, play a central role in modern ...
Heuvel, Ed P. J. van den, Tauris, Thomas M.   +1 more
core   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

Advanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan, Hocheon Yoo, Benoît H. Lessard, Ioannis Kymissis, Chang‐Hyun Kim   +4 more
wiley   +1 more source

Orbital Phase Shifts of Type-I Outbursts in EXO 2030+375

The Astrophysical Journal
EXO 2030+375 is a peculiar high-mass X-ray binary that has been exhibiting Type-I outburst activities consistently over the past decades. The phases of outburst peaks are generally stable and occur near the orbital periastron.
Run-Ting Huang, Long Ji, Jing-Zhi Yan
doaj   +1 more source

The Clumpy Absorber in the High-Mass X-Ray Binary Vela X-1 [PDF]

, 2017
Bright and eclipsing, the high-mass X-ray binary Vela X-1 offers a unique opportunity to study accretion onto a neutron star from clumpy winds of O/B stars and to disentangle the complex accretion geometry of these systems.
A. A. C. Sander, D. P. Huenemoerder, Hell, N., El Mellah, Ileyk, Schulz, Norbert S., Kühnel, M., Fürst, F., Sander, A. A. C., Pottschmidt, Katja, Mellah, I. El, S. Niu, I. El Mellah, S. Martínez-Núñez, El Mellah, I., Neilsen, Joseph, M. Leutenegger, Grinberg, V., J. Neilsen, Nowak, M. A., P. Kretschmar, Kretschmar, Peter, Kuehnel, Matthias, V. Grinberg, N. S. Schulz, Pottschmidt, K., Fürst, Felix, N. Hell, Neilsen, J., Leutenegger, M., Hell, Natalie, Niu, Shu, Wilms, J., Huenemoerder, David P., M. Kühnel, M. A. Nowak, Kuehnel, M., Leutenegger, Maurice, J. Wilms, Nowak, Michael A., Grinberg, Victoria, Wilms, Joern, Kretschmar, P., Niu, S., Huenemoerder, D. P., K. Pottschmidt, Martínez-Núñez, S., Schulz, N. S., F. Fürst, Kühnel, Matthias, Sander, Andreas A. C. (Dr. rer. nat.), Sander, Andreas, Wilms, Jörn, Martínez-Núñez, Silvia   +52 more
core   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Discovery of a New Phase-transient Cyclotron Line in A0535+26: Constraints on the Accretion Geometry

The Astrophysical Journal
In 2020 November, A0535+26 underwent one of its brightest outbursts, reaching nearly 12 Crab in X-ray flux. Observed by Insight-HXMT, NuSTAR, NICER, and AstroSat, this event provided valuable insights into Be/X-ray binaries.
Ashwin Devaraj, Biswajit Paul, Varun Bhalerao, Dipanjan Mukherjee   +3 more
doaj   +1 more source

High-Mass X-ray Binaries: progenitors of double compact objects [PDF]

, 2019
A summary is given of the present state of our knowledge of High-Mass X-ray Binaries (HMXBs), their formation and expected future evolution. Among the HMXB-systems that contain neutron stars, only those that have orbital periods upwards of one year will ...
van den Heuvel, E.P.J.
core   +1 more source

X-ray emission from massive stars: lessons learned and remaining mysteries [PDF]

, 2021
Nearly all types of massive stars are known to display X-ray emission at some level. Tremendous insight into this phenomenon has been gained thanks to the sensitivity of the current generation of X-ray satellites and X-ray observations are nowadays an ...
Rauw, Grégor
core   +1 more source

High‐Performance, Air‐Stable and Eco‐Friendly Terpene‐Processed Organic Solar Cells via Solvent‐Composition‐Controlled Film Formation Kinetics

Advanced Functional Materials, EarlyView.
Solvent‐composition‐controlled film formation enables high‐performance (efficiency = 18.66%) and air‐stable terpene‐processed organic solar cells. An optimized eucalyptol/tetralin ratio of 50:50 (v/v) balances molecular solvation and aggregation kinetics, producing favorable nanoscale phase separation and vertical composition gradients.
Hyerin Jeon, Seungho Lee, Jinseck Kim, Jin‐Woo Lee, Bumjoon J. Kim   +4 more
wiley   +1 more source

XMM-Newton View of Pulsating Iron Fluorescent Emission from Centaurus X-3

The Astrophysical Journal
Centaurus X–3 (Cen X–3) is a bright, high-mass X-ray binary pulsar. We present a pulse phase–resolved X-ray spectral analysis of data from an archival XMM-Newton observation of Cen X–3 taken during the high state of the source.
Kinjal Roy, Hemanth Manikantan, Biswajit Paul   +2 more
doaj   +1 more source