Results 21 to 30 of about 32,643 (235)

Euclid. III. The NISP instrument [PDF]

open access: yesAstronomy & Astrophysics
The Near-Infrared Spectrometer and Photometer (NISP) on board the satellite provides multiband photometry and $R slitless grism spectroscopy in the 950--2020\,nm wavelength range.
Euclid Collaboration K. Jahnke   +499 more
semanticscholar   +1 more source

Euclid. IV. The NISP Calibration Unit [PDF]

open access: yesAstronomy & Astrophysics
The near-infrared calibration unit (NI-CU) on board NISP is the first astronomical calibration lamp based on LED to be operated in space. is a mission in ESA's Cosmic Vision 2015--2025 framework to explore the dark universe and provide a next-level ...
Euclid Collaboration F. Hormuth   +499 more
semanticscholar   +1 more source

Observations of convection in A-type stars [PDF]

open access: yes, 2004
Convection and turbulence in stellar atmospheres have a significant effect on the emergent flux from A-type stars. The recent theoretical advancements in convection modelling have proved a challenge to the observers to obtain measurements with sufficient
Smalley, Barry
core   +2 more sources

THE NEW SPECTROPHOTOMETRIC STAR CATALOGUE

open access: yesOdessa Astronomical Publications, 2017
The new spectral energy distributions Eλ for 360 stars in wavelength region from λ  330 to  λ 725 nm are given. The observations for "relatively-absolute" stellar spectrophotometry were obtained at high-altitude astronomical station “Terskol” of Odessa ...
N. S. Komarov   +18 more
doaj   +1 more source

Chemical Composition of White Wines Produced from Different Grape Varieties and Wine Regions in Slovakia

open access: yesApplied Sciences, 2021
In this work, chemical parameters such as sugar (glucose and fructose) content, organic acid (total acids, malic and tartaric acids), total phenolic content and the antioxidant activity of 12 white wines (chardonnay, pinot blanc and pinot gris) from ...
Silvia Jakabová   +7 more
doaj   +1 more source

Emprego do Algoritmo Busca Tabu na determinação de principios ativos em fármacos

open access: yesRevista Produção Online, 2003
A new methodology of analysis for the quantification of antihipertensive drugs is provided in this work, using tabu search optimization with infrared spectroscopy by diffuse reflectance ...
Pedro Henrique de Almeida Konzen   +4 more
doaj   +1 more source

The high-field polar RX J1007.5-2017 [PDF]

open access: yes, 2012
We report optical and X-ray observations of the high-field polar RXJ1007.5-2017 performed between 1990 and 2012. It has an orbital period of 208.60 min determined from the ellipsoidal modulation of the secondary star in an extended low state.
Beuermann, K.   +4 more
core   +2 more sources

Near-infrared laser-mediated drug release and antibacterial activity of gold nanorod–sputtered titania nanotubes

open access: yesJournal of Tissue Engineering, 2018
The infection control of implants is one of the hot issues in the field of medicine and dentistry. In this study, we prepared gold nanorod–sputtered titania nanotubes on titanium surface, which is the main component of implant material, and aimed to ...
Kyoung-Suk Moon   +3 more
doaj   +1 more source

Further constraints on the optical transmission spectrum of HAT-P-1b [PDF]

open access: yes, 2015
We report on novel observations of HAT-P-1 aimed at constraining the optical transmission spectrum of the atmosphere of its transiting Hot-Jupiter exoplanet.
.   +7 more
core   +2 more sources

Molecular Signatures in the Near Infrared Dayside Spectrum of HD 189733b [PDF]

open access: yes, 2008
We have measured the dayside spectrum of HD 189733b between 1.5 and 2.5 microns using the NICMOS instrument on the Hubble Space Telescope. The emergent spectrum contains significant modulation, which we attribute to the presence of molecular bands seen ...
Bouwman, J.   +7 more
core   +2 more sources

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