Results 101 to 110 of about 6,397,764 (332)

MAXI J1659-152: the shortest orbital period black-hole transient in outburst [PDF]

open access: yes, 2012
MAXI J1659−152 is a bright X-ray transient black-hole candidate binary system discovered in September 2010. We report here on MAXI, RXTE, Swift, and XMM-Newton observations during its 2010/2011 outburst.
E. Kuulkers   +16 more
semanticscholar   +1 more source

Controlled Aggregation of Pyrene‐Based Supramolecular Nanostructures for Light‐Driven Switchable H2 or H2O2 Production

open access: yesAdvanced Functional Materials, EarlyView.
This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri   +6 more
wiley   +1 more source

The Orbital Period of the Long-period and Colliding-wind Binary WR 146 from Radio Interferometry of the Shock Cone

open access: yesThe Astronomical Journal
We report the first measurement of the orbital period of a long-period colliding-wind-binary system Wolf–Rayet (WR) 146, derived by tracing the rotational morphology of its wind-colliding region (WCR) and the relative orientation of the two binary ...
Shiming Wen   +10 more
doaj   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen   +4 more
wiley   +1 more source

Orbital metastases from breast cancer: three case reports

open access: yesСибирский онкологический журнал
Purpose: to describe rare cases of orbital metastases from breast cancer.Material and Methods. Three cases of Luminal A(1) and B(2) breast cancer with orbital metastases were identified and studied during the period from 01.01.2018 to 01.05.2024 ...
L. A. Danilova   +6 more
doaj   +1 more source

THE ROLE OF MAGNETIC STELLAR WIND AND MASS TRANSFER IN CLOSE BINARIES OF THE EARLY SPECTRAL TYPE

open access: yesOdessa Astronomical Publications, 2017
We suggest the results of calculations of mass transfer rate using orbital period changing and changing of orbital semi-major axis due to magnetic stellar Wind and mass transfer in close binaries of early spectral type.
E. L Perevozkina
doaj   +1 more source

Robotic observations of the most eccentric spectroscopic binary in the sky

open access: yes, 2013
The visual A component of the Gliese 586AB system is a double-lined spectroscopic binary consisting of two cool stars with the exceptional orbital eccentricity of 0.976.
Granzer, T.   +2 more
core   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

4FGL J1318.2+6754: A Long Orbital-period Redback Candidate

open access: yesThe Astrophysical Journal Letters
By combining the Fermi catalog and the single-lined spectroscopic binaries of Gaia Data Release 3 (DR3), we report a new candidate redback millisecond pulsar binary, which is recommended as a target for radio telescopes to detect pulsed signals.
Jie Lin   +3 more
doaj   +1 more source

CCD Photometric Investigation of A W UMa-Type Binary GSC 0763-0572

open access: yes, 2012
A photometric solution of an A-type W UMa binary, GSC 0763-0572 is examined with a revised orbital period. The overcontact degree is found to be $f$ = 40.66%, with a low mass ratio of $q$ = 0.2554.
Bernhard   +26 more
core   +1 more source

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