Results 81 to 90 of about 2,342,043 (349)

XMM-Newton View of Pulsating Iron Fluorescent Emission from Centaurus X-3

open access: yesThe Astrophysical Journal
Centaurus 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

High-Speed Optical Photometry of the Ultracompact X-Ray Binary 4U 1626–67 [PDF]

open access: yes, 1997
Rapid UBVRI photometry of the ultracompact low-mass X-ray binary (LMXB) pulsar 4U 1626-67/KZ TrA has detected 130.4 mHz (7.67 s) optical pulsations in all five bands.
D. Chakrabarty
semanticscholar   +1 more source

X-ray Pulsations in the Supersoft X-ray Binary CAL 83

open access: yes, 2005
X-ray data reveal that the supersoft X-ray binary CAL 83 exhibits 38.4 minute pulsations at some epochs. These X-ray variations are similar to those found in some novae and are likely to be caused by nonradial pulsations the white dwarf.
A. P. Cowley   +4 more
core   +3 more sources

Contact Binary Variables as X-ray Sources [PDF]

open access: yes, 2005
We present cross-identification of archived X-ray point sources with W UMa variable stars found in the All-Sky Automated Survey (ASAS). In a surveyed sky area of 300 square degrees of ASAS, 36 W UMa stars have been found associated with X-ray emission ...
Brancewicz H. K.   +10 more
core   +1 more source

In Situ Formation of a Melt‐Solid Interface Toward Stable Oxygen Reduction in Protonic Ceramic Fuel Cells

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Protonic ceramic fuel cells offer a promising route to generate power efficiently but face critical challenges in achieving industrially viable activity and stability at their cathodes in CO2‐containing air. This report proposes a new cathode material design strategy to enable the cathode to be both catalytically active and CO2 tolerant through the ...
Desheng Feng   +14 more
wiley   +1 more source

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

open access: yesThe 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   +2 more
doaj   +1 more source

Discovery of extraordinary X-ray emission from magnetospheric interaction in the unique binary stellar system $ε$ Lupi [PDF]

open access: green, 2023
B. Das   +14 more
openalex   +1 more source

Low-Mass X-ray Binary Populations

open access: yes, 2010
Low-mass X-ray binaries (LMXBs) have been studied in the Galaxy since the beginning of X-ray astronomy. A lot has been learned about these bright X-ray sources, but significant questions are still open.
Fabbiano, G.
core   +1 more source

Thermally Induced Gelling Systems Based on Patchy Polymeric Micelles

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
A novel strategy to design thermally induced gelling systems with tunable material properties is reported. Polymeric mixed‐shell micelles displaying multiple thermosensitive patchy domains formed hydrogels by assembling into well‐entangled worm‐like network structures upon heating to body temperature. The patchy micelle design significantly affects the
Binru Han   +9 more
wiley   +1 more source

On the Origin of Spectral Features Observed during Thermonuclear X-Ray Bursts and in the Aftermath Emission of a Long Burst from 4U 1820–30

open access: yesThe Astrophysical Journal
We study 15 thermonuclear X-ray bursts from 4U 1820–30 observed with the Neutron Star Interior Composition Explorer (NICER). We find evidence of a narrow emission line at 1.0 keV and three absorption lines at 1.7, 3.0, and 3.75 keV, primarily around the ...
Gaurava K. Jaisawal   +8 more
doaj   +1 more source

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