Results 101 to 110 of about 70,191 (293)

Observational signatures of neutron stars in low-mass X-ray binaries climbing a stability peak [PDF]

, 2015
E. M. Kantor, M. E. Gusakov, A. I. Chugunov   +2 more
openalex   +1 more source

A photometric and spectroscopic investigation of star formation in the very young open cluster NGC6383

, 2010
The very young open cluster NGC 6383 centered on the O-star binary HD 159176 is an interesting place for studying the impact of early-type stars with strong radiation fields and powerful winds on the formation processes of low-mass stars.
Berghöfer, Bessell, Carpenter, Dahm, De Becker, FitzGerald, Ford, G. Rauw, Gorti, Hamuy, Hawley, J. Manfroid, Jacoby, Jeffries, Kenyon, Kharchenko, Landin, Linder, Lloyd Evans, M. De Becker, Martins, Meyer, Meynet, Nazé, Nishiyama, Paunzen, Piskunov, Preibisch, Prisinzano, Rauw, Sana, Sana, Siess, Skrutskie, Sung, Thé, Zwintz   +36 more
core   +2 more sources

Design of Terpene‐Based Eco‐Friendly Solution Process for High‐Performance Organic Solar Cells

Advanced Functional Materials, EarlyView.
High‐performance, terpene‐processed organic solar cells (OSCs) by designing a new green co‐solvent system consisting of eucalyptol (Eu) and 2‐methyltetrahydrofuran (MeTHF) are developed. The OSCs processed from the optimal ratio of Eu and MeTHF achieve the highest power conversion efficiency (PCE) value of 17.3% reported to date for terpene‐processed ...
Hyerin Jeon, Chulhee Lim, Jin‐Woo Lee, Bumjoon J. Kim   +3 more
wiley   +1 more source

XRISM Resolves Relativistic Effects from the Innermost Accretion Disk in Serpens X-1

The Astrophysical Journal Letters
We present the first XRISM/Resolve observation of the persistently accreting neutron star (NS) low-mass X-ray binary Serpens X-1. The source was observed on 2024 October 17, for approximately 350 ks of elapsed time, resulting in 171 ks of exposure.
R. M. Ludlam, J. M. Miller, E. M. Cackett, J. A. García   +3 more
doaj   +1 more source

A Fresh Catch of Massive Binaries in the Cygnus OB2 Association

, 2012
Massive binary stars may constitute a substantial fraction of progenitors to supernovae and gamma-ray bursts, and the distribution of their orbital characteristics holds clues to the formation process of massive stars.
Alexander, Michael J., Kiminki, Daniel C., Kobulnicky, Henry A., Long, Garrett, Lundquist, Michael J., Runnoe, Jessie C., Smullen, Rachel A., Vargas-Alvarez, Carlos A., Wood, Earl S.   +8 more
core   +1 more source

Microfluidic Synthesis of Channel‐Rich Pd‐Cu Alloy Nanodendrites for Efficient Electrocatalytic CO2 Reduction to Formate

Advanced Functional Materials, EarlyView.
A microfluidic system enables the rapid, room‐temperature fabrication of channel‐rich Pd‐Cu alloy nanodendrites with tunable composition, uniform morphology, and finely branched internal structures. The resulting catalysts exhibit over 90% formate selectivity across a broad potential window, along with excellent CO tolerance and enhanced long‐term ...
Xintong Huang, Xude Yu, Hengyuan Liu, Shunkai Xia, Yongqi Jia, Zhuo Chen, Jianhong Xu, Younan Xia   +7 more
wiley   +1 more source

Examining the Relationship between the Persistent Emission and the Accretion Rate during a Type I X-Ray Burst

The Astrophysical Journal
The accretion flow onto a neutron star will be impacted by irradiation from a type I X-ray burst. The burst radiation exerts Poynting–Robertson (PR) drag on the accretion disk, leading to an enhanced mass accretion rate.
J. Speicher, D. R. Ballantyne, P. C. Fragile   +2 more
doaj   +1 more source

The two-hour orbit of a binary millisecond X-ray pulsar

, 1998
Typical radio pulsars are magnetized neutron stars that are born rapidly rotating and slow down as they age on time scales of 10 to 100 million years. However, millisecond radio pulsars spin very rapidly even though many are billions of years old.
AG Lyne, AR King, AS Fruchter, B Paczynski, BW Stappers, CA Tout, D Bhattacharya, DC Backer, Deepto Chakrabarty, DJ Nice, Edward H. Morgan, F D'Antona, F Verbunt, GJ Savonije, J Faulkner, J van Paradijs, JJ in 't Zand, L Stella, MH van Kerkwijk, NE White, P Podsiadlowski, R Wijnands, RN Manchester, WHG Lewin, WTS Deich   +24 more
core   +1 more source

Complex Cryptographic and User‐Centric Physically Unclonable Functions Enabled by Strain‐Sensitive Nanocrystals via Selective Ligand Exchange

Advanced Functional Materials, EarlyView.
This study investigates electromechanical PUFs that improve on traditional electric PUFs. The electron transport materials are coated randomly through selective ligand exchange. It produces multiple keys and a key with motion dependent on percolation and strain, and approaches almost ideal inter‐ and intra‐hamming distances.
Seungshin Lim, Hanseok Seo, Taesung Park, Byung Ku Jung, Junhyeok Park, Young Kyun Choi, Dae Yang Oh, Soong Ju Oh   +7 more
wiley   +1 more source

Fast Transitions of X-Ray Variability in the Neutron Star Low-mass X-Ray Binary Cygnus X-2

The Astrophysical Journal
We present a spectral-timing analysis of two NICER observations of the weakly magnetized neutron star low-mass X-ray binary Cygnus X-2. During these observations, we detect a rapid transition from a narrow 50 Hz horizontal-branch oscillation (HBO) to a ...
Liang Zhang, Mariano Méndez, Hua Feng, Diego Altamirano, Zi-xu Yang, Qing-chang Zhao, Shuang-Nan Zhang, Lian Tao, Yue Huang, Xiang Ma, Shu-mei Jia, Ming-yu Ge, Li-Ming Song, Jin-Lu Qu, Shu Zhang   +14 more
doaj   +1 more source