Results 51 to 60 of about 3,851 (308)

Timing Spectroscopy of Quasi-Periodic Oscillations in the Low-Mass X-Ray Neutron Star Binaries [PDF]

The Astrophysical Journal, 1999
12 pages, 4 figures, accepted by ApJ ...
TITARCHUK, Lev, Osherovich V., Kuznetsov S.   +2 more
openaire   +4 more sources

X-rays from quiescent low-mass X-ray binary transients

, 2000
International audienceI argue that it is very unlikely that X- rays from quiescent black-hole low-mass X-ray binary transients are emitted by coronae of companion stars.
Lasota, J. -P.
core   +1 more source

Enhanced optical activity 12 d before X-ray activity, and a 4 d X-ray delay during outburst rise, in a low-mass X-ray binary [PDF]

, 2020
X-ray transients, such as accreting neutron stars, periodically undergo outbursts, thought to be caused by a thermal-viscous instability in the accretion disc.
Goodwin, A.J., PAPITTO, ALESSANDRO, Lewis, F., Wijnands, R., Kotze, E.J., Heinke, C. O., de Martino, D., Russell, D. M., Kotze, E. J., Parikh, A. S., Goodwin, A. J., Bramich, D. M., Russell, D.M., Baglio, M.C., Galloway, D.K., in 't Zand, J. J. M., Buckley, D.A.H., Bramich, D.M., Buckley, D. A. H., Baglio, M. C., Papitto, A., DE MARTINO, Domitilla, Parikh, A.S., Galloway, D. K., in't Zand, J.J.M., Heinke, C.O., Homan, J.   +26 more
core   +1 more source

Exploration of Pseudobinary Alloys (Al–Mn)‐(Co–Fe–Ni) to Design High‐Entropy and Compositionally Complex Alloys to Stabilize the τ Phase in Al–Mn‐Based Ferromagnetic Alloys

Advanced Engineering Materials, EarlyView.
This experimental study investigates the thermodynamic limits of the Al–Mn τ ferromagnetic phase within complex‐composition alloys (CCAs). Using nine rare‐earth‐free compositions, it explores a broad region of the pseudobinary AlMnCoFeNi system. The results reveal intricate links between composition, phase stability, and magnetic behavior, highlighting
Sacha Plagnol‐Chauzu, Laurent Peltier, Fodil Meraghni, Stéphane Delalande, Frédéric Mazaleyrat   +4 more
wiley   +1 more source

Photospheric Radius Expansion Thermonuclear Burst and X-Ray Reflection from the Neutron Star X-Ray Binary 4U 1702-429

The Astrophysical Journal
We perform a comprehensive study of thermonuclear bursts from the neutron star low-mass X-ray binary 4U 1702–429 detected with NICER and XMM-Newton. The thermonuclear burst detected with NICER shows clear evidence of a photospheric radius expansion (PRE)
Manoj Mandal, Sachindra Naik, Gaurava Kumar Jaisawal   +2 more
doaj   +1 more source

Return of 4U 1730–22 after 49 yr Silence: The Outburst Properties Observed by NICER and Insight-HXMT

The Astrophysical Journal Letters, 2022
After 49 yr of quiescence, 4U 1730–22 became active and had two outbursts in 2021 and 2022; the onset and tail of the outbursts were observed by NICER, which give us a peerless opportunity to study the state transition and its underlying mechanism.
Yu-Peng Chen, Shu Zhang, Shuang-Nan Zhang, Long Ji, Peng-Ju Wang, Ling-Da Kong, Zhi Chang, Jing-Qiang Peng, Qing-Cang Shui, Jian Li, Lian Tao, Ming-Yu Ge, Jin-Lu Qu   +12 more
doaj   +1 more source

IN4MER Biomaterial Ink: A Phosphorescent Biosensing Biomaterial Ink for Multiple Analytes (Glucose, Lactate, Oxygen) Measurements and Temperature Sensing Applications

Advanced Functional Materials, EarlyView.
Multianalyte, real‐time monitoring of bioprinted scaffolds remains challenging. Phosphorescence‐lifetime–based, optically responsive microparticles are embedded in diverse printable hydrogels (κ‐carrageenan, GelMA, PEGDA) to form biomaterial inks that report oxygen, glucose, lactate, and temperature.
Waqas Saleem, David Chimene, Berkley P. White, Kaivalya A. Deo, Jeremy L. Thomas, Nithin Chidambara, Cole Mandrona, Kirsten Landsgaard, Brian Ko, Roland Kaunas, Akhilesh K. Gaharwar, Michael J. McShane   +11 more
wiley   +1 more source

A Comprehensive Study of Thermonuclear X-Ray Bursts from 4U 1820–30 with NICER: Accretion Disk Interactions and a Candidate Burst Oscillation

The Astrophysical Journal
We present the results obtained from timing and spectral studies of 15 thermonuclear X-ray bursts from 4U 1820–30 observed with the Neutron Star Interior Composition Explorer (NICER) during its 5 yr of observations between 2017 and 2022.
Gaurava K. Jaisawal, Z. Funda Bostancı, Tuğba Boztepe, Tolga Güver, Tod E. Strohmayer, David R. Ballantyne, Jens H. Beck, Ersin Göğüş, Diego Altamirano, Zaven Arzoumanian, Deepto Chakrabarty, Keith C. Gendreau, Sebastien Guillot, Renee M. Ludlam, Mason Ng, Andrea Sanna, Jérôme Chenevez   +16 more
doaj   +1 more source

Low-Mass X-ray Binaries [PDF]

A large fraction of X-ray sources in our Galaxy are low-mass X-ray binaries, containing a black hole or a neutron star accreting from a gravitationally bound low-mass (<∼1 M⊙) companion star.
Degenaar, N., Bahramian, A.
core   +1 more source

Oxygen‐Tunnel Indium Tin Oxide Vertical Channel Transistors with Enhanced Current Density and Reliability for Monolithic 3D Compute‐In‐Memory Systems

Advanced Functional Materials, EarlyView.
Oxygen‐tunnel (OT) indium tin oxide (ITO) vertical channel transistors (VCTs) enable reliable, high‐density gain‐cell memory for monolithic 3D integration. A sandwiched SiN/SiO2/SiN OT stack selectively regulates oxygen transport, suppressing parasitic electrode oxidation while stabilizing channel oxygen vacancies, thereby suppressing carrier injection
Hyeonho Gu, Haksoon Jung, Yongwoo Lee, Hoichang Jeong, Yanfeng Zhao, Heesoo Yang, Minho Park, Hyeonjin Lee, Seunghun Baek, Minju Song, Junghwan Kim, Youngmin Jo, Hyunjin Park, Munhyeon Kim, Jae‐Joon Kim, Kyuho Jason Lee, Byungjo Kim, Jimin Kwon   +17 more
wiley   +1 more source