Results 121 to 130 of about 197,808 (272)
Fundamental parameters of massive stars [PDF]
EAS Publications Series, 2004 21 pages, 3 figures, to appear in "Massive Stars: Formation, Evolution and Environment", eds. Heydari-Malayeri & Zahn (proceedings of 2002 Aussois summer school)
openaire +4 more sources
β Cephei Pulsators in Eclipsing Binaries Observed with TESS
The Astrophysical Journal Supplement SeriesThe combined strength of asteroseismology and empirical stellar basic parameter determinations for in-depth asteroseismic analysis of massive pulsators in eclipsing binaries shows great potential for treating the challenging and mysterious discrepancies ...
Christian I. Eze, Gerald Handler
doaj +1 more source
Advanced Engineering Materials, EarlyView.A novel technique for fabricating monolithic functionally graded NiTi shape memory alloy (SMA) laminated hybrid composite has been developed. An excellent metallurgical bonding can be established between two compositionally different NiTi SMAs through spark plasma sintering joining/diffusion bonding followed by hot roll bonding.
Soumya Sinha +2 more
wiley +1 more source
SGRs and AXPs: Evidence for Delayed Amplification of Magnetic Field after Neutron Star Formation?
Advances in Astronomy, 2009 We present new analysis of the birth rate of AXPs and SGRS and their associated SNRs. Using Kolmogorov-Smirnov statistics together with parametric fits based on a robust estimator, we find a birth rate of ∼1/(1000 years) for AXPs/SGRs and their ...
Denis Leahy, Rachid Ouyed
doaj +1 more source
2D Vermiculite Nanolaminated Membranes for Efficient Organic Solvent Nanofiltration
Advanced Functional Materials, EarlyView.Intercalating multivalent cations into 2D vermiculite nanolaminates significantly improves the structural stability and sieving capabilities of membranes in both aqueous and organic media, rendering them effective for organic solvent nanofiltration. Abstract Membrane separation technology has found widespread application in molecular sieving and water ...
Wensen Wang +17 more
wiley +1 more source
Proceedings of the International Astronomical Union, 2008 AbstractGamma-ray line emission from radioactive decay of60Fe provides constraints on nucleosynthesis in massive stars and supernovae. We detect the γ-ray lines from60Fe decay at 1173 and 1333 keV using three years of data from the spectrometer SPI on boardINTEGRAL.
openaire +3 more sources
The Discovery of Three Galactic Wolf–Rayet Stars
The Astronomical JournalWolf–Rayet stars (WRs) are evolved massive stars in the brief stage before they undergo core collapse. Not only are they rare, but they also can be particularly difficult to find due to the high extinction in the Galactic plane.
Laurella C. Marin +3 more
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Advanced Functional Materials, EarlyView.PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu +14 more
wiley +1 more source
The Astrophysical Journal Supplement SeriesWe present identifications and kinematic analysis of 7426 massive (≥8 M _⊙ ) stars in the Small Magellanic Cloud (SMC), using Gaia DR3 data. We used the Gaia ( G _BP − G _RP , G ) color–magnitude diagram to select the population of massive stars, and ...
Satoya Nakano +2 more
doaj +1 more source
Direct Ink Writing of Conductive Hydrogels
Advanced Functional Materials, EarlyView.This review examines the use of direct ink writing (DIW) for fabricating conductive hydrogels with customizable 3D structures. It outlines the rheological requirements for successful DIW, followed by an exploration of the materials and ink formulations used to impart electronic and/or ionic conductivity to hydrogels while maintaining printability ...
Monica Ho +6 more
wiley +1 more source