Results 121 to 130 of about 287,620 (343)

X-ray views of neutron star low-mass X-ray binaries

open access: yes, 2010
A neutron star low-mass X-ray binary is a binary stellar system with a neutron star and a low-mass companion star rotating around each other. In this system the neutron star accretes mass from the companion, and as this matter falls into the deep potential well of the neutron star, the gravitational potential energy is released primarily in the X-ray ...
openaire   +2 more sources

Wetting of Surface Grafted Hydrophilic‐b‐Hydrophobic Block Copolymer Brushes

open access: yesAdvanced Functional Materials, EarlyView.
The wetting properties of surface grafted diblock copolymer brushes are influenced by the thickness of the hydrophilic bottom block and the hydrophobic top block. The surface adapts in presence of water and the contact angles of the bottom block shine through. Abstract The wetting of diblock copolymer brushes by water is studied.
Benjamin Leibauer   +7 more
wiley   +1 more source

Quenching and Recovery of Persistent X-Ray Emission during a Superburst in 4U 1820–30

open access: yesThe Astrophysical Journal
We 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

Constraints on the mass and radius of neutron stars from X-ray observations [PDF]

open access: yesarXiv, 2015
This article gives a very brief introduction about measuring the mass and radius of neutron star from X-ray observations. The masses and radii of neutron stars can be determined from photospheric radius expansion bursts in low-mass X-ray binaries, X-ray pulse profile modeling in accreting X-ray pulsars, gravitational redshift measurement in low-mass X ...
arxiv  

The clumpy absorber in the high-mass X-ray binary Vela X-1 [PDF]

open access: yes, 2017
Bright and eclipsing, the high-mass X-ray binary Vela X-1 offers a unique opportunity to study accretion onto a neutron star from clumpy winds of O/B stars and to disentangle the complex accretion geometry of these systems.
V. Grinberg   +18 more
semanticscholar   +1 more source

An Overview of the Bowen Survey: Detecting Donor Star Signatures in Low Mass X-ray Binaries [PDF]

open access: yesAIP Conference Proceedings, 2008
5 pages, 3 figures, Proceedings of "A Population Explosion: The Nature and Evolution of X-ray Binaries in Diverse Environments", St.
Remon Cornelisse   +11 more
openaire   +3 more sources

Switching From Acceptor to FRET Donor: How the Organic Solar Cell Architecture Can Change the Role of a Chromophore

open access: yesAdvanced Functional Materials, EarlyView.
The non‐fullerene acceptor o‐IDT‐BT‐DCV is used in both binary and ternary blends to investigate the role that it plays in each device architecture. The charge generation pathways are found to differ between the binary and ternary blends with o‐IDT‐BT‐DCV becoming a second donor in the ternary blend.
Hui Jin   +10 more
wiley   +1 more source

A Comprehensive Study of Type I (Thermonuclear) Bursts in the New Transient SRGA J144459.2–604207

open access: yesThe Astrophysical Journal
We report an analysis of Insight-HXMT observations of the newly discovered accreting millisecond pulsar SRGA J144459.2–604207. During the outburst, detected in 2024 February by SRG/ART-XC, the broadband persistent spectrum was well fitted by an absorbed ...
Tao Fu   +13 more
doaj   +1 more source

The bottom magnetic field and magnetosphere evolution of neutron star in low-mass X-ray binary [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2006
8 pages, 4 figs, accepted by MNRAS ...
Yasufumi Kojima, Cheng-Min Zhang
openaire   +3 more sources

Making Photoresponsive Metal–Organic Frameworks an Effective Class of Heterogeneous Photocatalyst

open access: yesAdvanced Functional Materials, EarlyView.
This review summarizes photoresponsive MOFs for photocatalytic applications, focusing on their capacity to enhance light harvesting, charge transfer, and surface reactions. While existing studies provide foundational insights, emerging characterization techniques enable a deeper understanding of photoresponsive MOFs.
Rui Liu   +3 more
wiley   +1 more source

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