Results 111 to 120 of about 3,870 (308)
The Astrophysical JournalWe investigated the timing and spectral properties of the millihertz quasiperiodic oscillations (mHz QPOs) in the neutron star low-mass X-ray binary 4U 1608–52 using NICER observations. Our analysis reveals a correlation between the QPO frequency and its
Ming Lyu +3 more
doaj +1 more source
Advanced Materials, EarlyView.A reversible, all‐optical modulation strategy enables resist‐free, sub‐diffraction nanolithography of halide perovskite films. Leveraging 800 nm fs laser‐induced crystallization and 365 nm laser driven decomposition, reconfigurable patterning achieves feature sizes down to 93.5 nm. This chemistry‐free approach offers dynamic control over optoelectronic
Zhengfen Wan +4 more
wiley +1 more source
Mass distribution of neutron stars and black holes in X-ray binaries [PDF]
, 2023 . The aim of this thesis is to make a literature review of the mass distribution of neutron stars and black holes in X-ray binaries. X-ray binaries are binary systems which contain a stellar remnant and a main sequence star.
Tervo, J. (Juuso)
core
Advanced Materials, EarlyView.A multifunctional bioactive PEEK‐based implant (Mn@p/MBG‐SPEEK) is engineered to combat implant‐associated infections while promoting osteogenesis. The hybrid surface activates PI3K/Akt/mTOR and AP‐1 signaling pathways for osteogenic differentiation, while Mn coordination induces electronic coupling that narrows the HOMO‐LUMO energy gap and enhances ...
Zhiyan Xu +7 more
wiley +1 more source
Quenching and Recovery of Persistent X-Ray Emission during a Superburst in 4U 1820–30
The Astrophysical JournalWe report the superburst from 4U 1820–30 in 2021 observed by the Monitor of All-sky X-ray Image and Neutron star Interior Composition Explorer (NICER).
Zhijiao Peng +8 more
doaj +1 more source
On the lack of X-ray pulsation in most neutron star low-mass X-ray binaries
Monthly Notices of the Royal Astronomical SocietyABSTRACT We have investigated whether the lack of X-ray pulsations from most neutron star (NS) low-mass X-ray binaries (LMXBs) could be due to the extension of their inner disc to the NS surface. To estimate the inner disc radii, we have employed the model, recently proposed to account for the torque reversals of LMXBs.
N Niang +7 more
openaire +3 more sources
Design Principles for Fluid Molecular Ferroelectrics
Advanced Materials, EarlyView.A major challenge for soft condensed matter is predicting whether a fluid molecular material will form ferroelectric phase with nematic or smectic order. Through systematic synthesis, and by analogy to solid molecular ferroelectrics, it is shown that subtle hydrogen–fluorine (H/F) substitution(s) allows for tuneable syn‐parallel pairing motifs ...
Calum J. Gibb +3 more
wiley +1 more source
The globular cluster mass/low mass X-ray binary correlation: implications for kick velocity distributions from supernovae [PDF]
, 2006 Optical and X-ray studies of six nearby galaxies show that the probability a globular cluster will be an X-ray source is consistent with being linearly proportional to its mass.
Zepf, S.E. +7 more
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Advanced Materials Interfaces, EarlyView.Modification of geopolymer surface with a silane coupling agent containing quaternary ammonium group enables the development of dual‐functioning ion exchanger for both cations and anions. In the present study, the performance of this material was demonstrated for the uptake of ammonium and nitrate from water.
Yangmei Yu +7 more
wiley +1 more source
Disk Instability in Wide Neutron Star Low‐Mass X‐Ray Binaries
The Astrophysical Journal, 1998 Conditions for disk instability in low-mass X-ray binaries (LMXBs) have been recently considered with X-ray irradiation of the disk included. Conservative evolution was generally assumed, which, however, fails in wide LMXBs with a neutron star primary (NLMXBs).
X.‐D. Li, Z.‐R. Wang
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