Results 61 to 70 of about 133,578 (333)

Toward Maximum Utilization of Heavy Rare Earths in Sintered Nd–Fe–B Magnets by Grain Boundary Diffusion Source and Application Area Optimization

Advanced Engineering Materials, EarlyView.
In this work, the grain boundary diffusion process is optimized to maximize heavy rare earth utilization by strategic magnetic hardening of areas in the magnet such as corners or edges that are highly susceptible to demagnetization, as demonstrated by finite element magnetostatics simulation on an internal permanent magnet, synchronous traction motor ...
Abdullatif Durgun, Dominik Ohmer, Matthias Katter, Andreas Thul, Simon Steentjes, Hossein Sepehri Amin, Oliver Gutfleisch, Imants Dirba   +7 more
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

X-ray irradiation of the winds in binaries with massive components

, 2015
Binaries with hot massive components are strong X-ray sources. Besides the intrinsic X-ray emission of individual binary members originating in their winds, X-ray emission stems from the accretion on the compact companion or from wind collision.
Krticka, Jiri, Krtickova, Iva, Kubat, Jiri   +2 more
core   +1 more source

Spectroscopic observations of the candidate sgB(e)/X-ray binary CI Camelopardalis [PDF]

, 2002
We present a compilation of spectroscopic observations of the sgB(e) star CI Cam, the optical counterpart of XTE J0421+560. This includes data from before, during, and after its 1998 outburst, with quantitative results spanning 37 years. The object shows
R. Hynes, J. Clark, E. Barsukova, P. Callanan, P. Charles, A. Cameron, S. Fabrika, M. Garcia, C. Haswell, K. Horne, A. Miroshnichenko, I. Negueruela, P. Reig, W. Welsh, D. University, U. London, S. A. Observatory, University College Cork, S. University, Harvard-Smithsonian Cfa, T. O. University, U. Toledo, P. Observatory, O. Strasbourg, F. Crete, San Diego State University   +25 more
semanticscholar   +1 more source

Design of Multiphase Compositionally Complex Alloys for Enhanced Hardness at Elevated Temperatures and Machinability: Comparative Study with Inconel 718

Advanced Engineering Materials, EarlyView.
This study compares the mechanical properties of Inconel 718 with two newly developed compositionally complex alloys (CCAs). Inco‐like‐H alloy demonstrates significantly improved wear resistance, surface finish, and hardness, notably at high temperatures. This CCA requires no heat treatment and is well suited for additive manufacturing. Its performance
Laurent Peltier, Gaël Le Coz, Fodil Meraghni, Jérome Slowensky   +3 more
wiley   +1 more source

Orbital Phase-resolved Analysis of X-Ray and Gamma-Ray Observations of the High-mass Gamma-Ray Binary 4FGL J1405.1−6119

The Astrophysical Journal
We present the results of multiwavelength observations of the high-mass gamma-ray binary (HMGB) 4FGL J1405.1−6119. A pair of joint XMM-Newton and NuSTAR observations taken in 2019 (sampling the gamma-ray maximum and X-ray maximum) characterize the ...
Alexander Lange, Robin H.D. Corbet, Joel B. Coley, Guillaume Dubus, Jeremy Hare, Nazma Islam, Jonathan Barnes   +6 more
doaj   +1 more source

Insight-HXMT Views Her X-1: Probing the Dependence of the Cyclotron Line Energy on Flux and Time

The Astrophysical Journal, 2023
Recent observations of Her X-1 with NuSTAR (as well as with INTEGRAL, Swift, and Astrosat) have provided evidence that the nearly 20 yr-long decay of the cyclotron line energy since ∼1994 has ended and that a stable value has replaced the decay.
G. C. Xiao, R. Staubert, L. Ji, M. Y. Ge, Q. Z. Liu, J. L. Qu, S. Zhang, S. N. Zhang, J. Z. Yan, J. Li, Q. C. Bu, Y. L. Tuo, H. X. Liu, Z. X. Yang   +13 more
doaj   +1 more source

Bursts, eclipses, dips and a refined position for the luminous low-mass X-ray binary in the globular cluster Terzan 6 [PDF]

, 2003
GRS 1747-312 is a bright transient X-ray source in the globular cluster Terzan 6 with quasi-periodic outbursts approximately every 4.5 months. We carried out 2-60 keV target-of-opportunity observations during eight outbursts with the Proportional Counter
J. Zand, J. Zand, F. Hulleman, C. Markwardt, C. Markwardt, M. Méndez, E. Kuulkers, R. Cornelisse, R. Cornelisse, J. Heise, J. Heise, T. Strohmayer, F. Verbunt   +12 more
semanticscholar   +1 more source

Improved Strength and Corrosion Resistance of Ti–50Zr Alloy Through Heat Treatment

Advanced Engineering Materials, EarlyView.
This work systematically analyzes the effects of heat treatment on mechanical properties and corrosion behavior of Ti‐50Zr alloy produced via vacuum arc melting. Microstructure transforms from coarse lamellar α phase in as‐cast condition to fine and uniformly distributes acicular α′ phase in heat‐treatment state.
Yuhua Li, Qian Zhang, Rong Zhao, Haojie Wang, Yujing Liu, Zibo Zhao, Chengliang Yang, Lai‐Chang Zhang   +7 more
wiley   +1 more source

Investigating the Ultracompact X-Ray Binary Candidate SLX 1735-269 with NICER and NuSTAR

The Astrophysical Journal
We present two simultaneous NICER and NuSTAR observations of the ultracompact X-ray binary (UCXB) candidate SLX 1735−269 while the source was in two different spectral states. Using various reflection modeling techniques, we find that xillverCO , a model
D. L. Moutard, R. M. Ludlam, M. Sudha, D. J. K. Buisson, E. M. Cackett, N. Degenaar, A. C. Fabian, P. Gandhi, J. A. García, A. W. Shaw, J. A. Tomsick   +10 more
doaj   +1 more source