Results 131 to 140 of about 838,554 (289)

V2491 Cyg - a possible recurrent nova ?

open access: yes, 2010
2 pages, 1 ...
Ragan, E.   +8 more
openaire   +2 more sources

Environmental Stability and Electronic Properties of Individual Flakes of Ti2CTx MXene

open access: yesAdvanced Electronic Materials, EarlyView.
The paper presents a synthesis of large Ti2CTx MXene flakes with sizes reaching 40 µm and examines their environmental stability and electronic behavior. It demonstrates that monolayer flakes degrade rapidly in ambient conditions, leading to semiconducting‐like behavior with low conductivity and mobility. In contrast, multilayer flakes exhibit enhanced
Md. Ibrahim Kholil   +5 more
wiley   +1 more source

Polarimetric and spectropolarimetric observations with FoReRo2: Instrument overview and standard star monitoring★

open access: yesAstronomy & Astrophysics
In this paper, we present a description and characterisation of the 2-Channel Focal Reducer Rozhen (FoReRo2), with an emphasis on its polarimetric and spectropolarimetric observation modes.
Nikolov Yanko   +5 more
doaj   +1 more source

The General Trends of Recurrent Novae [PDF]

open access: yes, 1995
The observational properties of recurrent novae are reviewed in this talk. The class of recurrent novae may be divided into subgroups as (a) systems with a dwarf secondary and (b) systems with a giant secondary. The primary in these systems is a white dwarf, accreting at rates ~ 10-8 M ⊙ yr-1.
openaire   +1 more source

Accelerating Surface Composition Characterization of Thin‐Film Materials Libraries Using Multi‐Output Gaussian Process Regression

open access: yesAdvanced Intelligent Discovery, EarlyView.
To integrate surface analysis into materials discovery workflows, Gaussian process regression is used to accurately predict surface compositions from rapidly acquired volume composition data (obtained by energy‐dispersive X‐ray spectroscopy), drastically reducing the number of required surface measurements on thin‐film materials libraries.
Felix Thelen   +2 more
wiley   +1 more source

Irradiation-driven Formation of Supersoft X-Ray Sources following Classical Novae

open access: yesThe Astrophysical Journal
Supersoft X-ray sources (SSSs) are characterized by persistent thermonuclear burning on the surfaces of white dwarfs (WDs). The standard model requires high mass-transfer rates of ∼10 ^−7 M _⊙ yr ^−1 from massive companions, presenting a theoretical ...
Weitao Zhao   +3 more
doaj   +1 more source

Scalable Platform Enabling Reservoir Computing With Nanoporous Oxide Memristors for Image Recognition and Time Series Prediction

open access: yesAdvanced Intelligent Systems, EarlyView.
The approach of physical in materia computing incorporates parallel computing within the medium itself. A scalable and energy‐efficient, oxide‐based computational platform is realized in form of a nanoporous network of volatile niobium oxide memristors sandwiched between top and bottom metallic electrodes, and then tested for prediction and ...
Joshua Donald   +7 more
wiley   +1 more source

X-Rays from RS Ophiuchi’s 2021 Eruption: Shocks In and Out of Ionization Equilibrium

open access: yesThe Astrophysical Journal
The recurrent nova RS Ophiuchi (RS Oph) underwent its most recent eruption on 2021 August 8 and became the first nova to produce both detectable GeV and TeV emission.
Nazma Islam, Koji Mukai, J. L. Sokoloski
doaj   +1 more source

Home - About - Disclaimer - Privacy