Results 41 to 50 of about 160,758 (264)

Infrared Nanocrystals for Space Application: Hardness to Irradiations

open access: yesAdvanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret   +22 more
wiley   +1 more source

TESS asteroseismology of the known red-giant host stars HD 212771 and HD 203949 [PDF]

open access: yes, 2019
International ...
Adibekyan, Vardan   +47 more
core   +5 more sources

CSST-PSFNet: A Point-spread Function Reconstruction Model for the CSST Based on Deep Learning

open access: yesThe Astrophysical Journal Supplement Series
This paper presents CSST-PSFNet , a deep learning method for high-fidelity point-spread function (PSF) reconstruction developed for the Chinese Space Station Survey Telescope (CSST).
Peipei Wang   +5 more
doaj   +1 more source

Extension of HOPS out to 500 pc (eHOPS). I. Identification and Modeling of Protostars in the Aquila Molecular Clouds

open access: yesThe Astrophysical Journal Supplement Series, 2023
We present a Spitzer/Herschel focused survey of the Aquila molecular clouds ( d ∼ 436 pc) as part of the eHOPS (extension of the Herschel orion protostar survey, or HOPS, Out to 500 ParSecs) census of nearby protostars.
Riwaj Pokhrel   +16 more
doaj   +1 more source

Uncovering the Origin of Efficiency Roll‐Off in TADF OLEDs

open access: yesAdvanced Functional Materials, EarlyView.
OLEDs based on thermally activated delayed fluorescent (TADF) materials often suffer from a severe drop in efficiency at high brightness levels. This work presents a technique to uncover the source of this efficiency drop, and quantifies the exciton‐exciton and exciton‐polaron annihilation processes responsible for efficiency losses in our TADF OLEDs ...
Liam G. King   +3 more
wiley   +1 more source

The Lick AGN Monitoring Project 2011: Dynamical Modeling of the Broad Line Region in Mrk 50 [PDF]

open access: yes, 2012
We present dynamical modeling of the broad line region (BLR) in the Seyfert 1 galaxy Mrk 50 using reverberation mapping data taken as part of the Lick AGN Monitoring Project (LAMP) 2011.
A. M. Nierenberg   +63 more
core   +3 more sources

Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

open access: yesAdvanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya   +22 more
wiley   +1 more source

Sines, steps and droplets: Semiparametric Bayesian modeling of arrival time series

open access: yes, 2012
I describe ongoing work developing Bayesian methods for flexible modeling of arrival time series data without binning, aiming to improve detection and measurement of X-ray and gamma-ray pulsars, and of pulses in gamma-ray bursts.
Rots, Thomas J. Loredo
core   +1 more source

Iris: an Extensible Application for Building and Analyzing Spectral Energy Distributions [PDF]

open access: yes, 2014
Iris is an extensible application that provides astronomers with a user-friendly interface capable of ingesting broad-band data from many different sources in order to build, explore, and model spectral energy distributions (SEDs).
Bonaventura, Nina   +13 more
core   +2 more sources

Lux: A Generative, Multioutput, Latent-variable Model for Astronomical Data with Noisy Labels

open access: yesThe Astronomical Journal
The large volume of spectroscopic data available now and from near-future surveys will enable high-dimensional measurements of stellar parameters and properties. Current methods for determining stellar labels from spectra use physics-driven models, which
Danny Horta   +4 more
doaj   +1 more source

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