Results 41 to 50 of about 7,299,193 (301)
Discovery of a New Phase-transient Cyclotron Line in A0535+26: Constraints on the Accretion Geometry
The Astrophysical JournalIn 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 +3 more
doaj +1 more source
Low-Mass X-Ray Binaries with Strange Quark Stars [PDF]
Publications of the Astronomical Society of the Pacific, 2013 Strange quark stars (SSs) may originate from accreting neutron stars (NSs) in low-mass X-ray binaries (LMXBs). Assuming that conversion of NS matter to SSs occurs when the core density of accreting NS reaches to the density of quark deconfinement, $\sim 5 ρ_0$, where $ρ_0\sim 2.7\times 10^{14}$g cm$^{-3}$ is nuclear saturation density, we investigate ...
Zhu, Chunhua +3 more
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Rapidly Solidified High‐Strength Invar 36 Prepared by Planar‐Flow Melt Spinning
Advanced Engineering Materials, EarlyView.The Invar 36 alloy was rapidly solidified using the planar‐flow melt‐spinning technique. Ribbon samples with thicknesses ranging from 20 to 160 mm were produced. As the grain size of the ribbon decreased to sub‐micron levels, the hardness increased by more than 2 times.
Bekir Akgül, Mehmet Kul
wiley +1 more source
XMM-Newton View of Pulsating Iron Fluorescent Emission from Centaurus X-3
The Astrophysical JournalCentaurus 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 +2 more
doaj +1 more source
JET MODELS FOR NEUTRON STAR X-RAY BINARIES
International Journal of Modern Physics: Conference Series, 2012 A variety of different models for jet formation have been developed over the years (mainly) for black hole systems and young stellar objects. Conclusive observational constraints which would favor one particular mechanism are difficult to obtain.
Migliari, S. +3 more
openaire +3 more sources
High-Mass X-Ray Binaries and OB Runaway Stars [PDF]
International Astronomical Union Colloquium, 2004 AbstractHigh-mass X-ray binaries (HMXBs) represent an important phase in the evolution of massive binary systems and provide fundamental information on the properties of the OB-star primaries and their compact secondaries (neutron star, black hole). Recent observations indicate that the neutron stars in some of these systems (Vela X-1, 4U 1700-37) are ...
Kaper, L. +2 more
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Advanced Engineering Materials, EarlyView.Gallium microalloying redirects interfacial reactions in low‐temperature Bi–Sn solders from Cu–Sn toward Cu–Ga intermetallic formation. The resulting Cu–Ga layer suppresses intermetallic growth during thermal aging, alters fracture pathways, and improves interfacial stability.
Iva Králová +6 more
wiley +1 more source
Signals of the QCD Phase Transition in the Heavens [PDF]
, 2007 The modern phase diagram of strongly interacting matter reveals a rich structure at high-densities due to phase transitions related to the chiral symmetry of quantum chromodynamics (QCD) and the phenomenon of color superconductivity.
Schaffner-Bielich, Jürgen
core
Binary interaction dominates the evolution of massive stars.
, 2020 The presence of a nearby companion alters the evolution of massive stars in binary systems, leading to phenomena such as stellar mergers, x-ray binaries, and gamma-ray bursts.
de Koter, A +9 more
core +2 more sources
Donor Stars in Black Hole X‐Ray Binaries [PDF]
The Astrophysical Journal, 1999 We study theoretically the formation of black-hole (BH) X-ray binaries. Consistency of the models with the observed relative numbers of systems with low-mass (<2 M_sun) and intermediate-mass (~2 M_sun - M_{BH}) donors leads to severe constraints on the evolutionary parameters of the progenitors.
openaire +2 more sources