Results 21 to 30 of about 14,587 (250)

Interstellar Extinction in the Middle Ultraviolet.

open access: yesThe Astrophysical Journal, 1964
Interstellar extinction in middle UV, deriving normalized curve from photoelectric photometry ...
Albert, III Boggess, Jan Borgman
openaire   +1 more source

Ultraviolet Passbands for a Space Multicolor Photometric System

open access: yesOpen Astronomy, 2003
The results of search for the optimal location of ultraviolet passbands for an extra-atmospheric photometric system are given. The addition of passbands near the well-known extinction bump at 218 nm to the photometric system makes it possible to ...
Ambartsoumian A. R.   +2 more
doaj   +1 more source

The variation of interstellar extinction in the ultraviolet [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1986
Les donnees UV concernant 92 des 154 etoiles rougies observees ne peuvent pas etre interpretees au moyen d'une loi d'extinction interstellaire unique. Les variations de la courbe d'extinction requierent au moins deux agents, pour interpreter les modifications de la pente et l'intensite de la raie a 2200 ...
openaire   +1 more source

Peculiar ultraviolet interstellar extinction

open access: yesThe Astrophysical Journal, 1983
In connection with investigations of the physical characteristics of interstellar dust, a study of objects with peculiar extinction might provide new insights about the composition, size distribution, formation, and destruction of the particulate matter. Meyer and Savage (1981) have found that the dust toward many stars exhibits peculiar UV extinction.
D. Massa   +2 more
openaire   +1 more source

High-performance silicon photonic filters based on all-passive tenth-order adiabatic elliptical-microrings

open access: yesAPL Photonics, 2022
Ultra-compact silicon photonic filters with box-like responses and high extinction ratios are proposed and demonstrated by introducing tenth-order adiabatic elliptical-microrings (AEMs) with bent directional couplers.
Dajian Liu   +4 more
doaj   +1 more source

An analysis of the shapes of ultraviolet extinction curves. II - The far-UV extinction [PDF]

open access: yesThe Astrophysical Journal, 1988
In this paper the properties of interstellar extinction in the far-ultraviolet region are examined utilizing IUE extinction curves for a primary data sample of 45 reddened Milky Way OB stars. These results are combined with those derived for the 2175 A bump in a previous study.
Edward L. Fitzpatrick, Derck Massa
openaire   +1 more source

Empirical Temperature- and Extinction-dependent Extinction Coefficients for the GALEX, Pan-STARRS 1, Gaia, SDSS, 2MASS, and WISE Passbands

open access: yesThe Astrophysical Journal Supplement Series, 2022
We have obtained accurate dust reddening from the far-ultraviolet to the mid-infrared for up to 5 million stars by the star-pair algorithm based on LAMOST stellar parameters along with Galaxy Evolution Explorer, Pan-STARRS 1, Gaia, Sloan Digital Sky ...
Ruoyi Zhang, Haibo Yuan
doaj   +1 more source

An Analysis of the Shapes of Ultraviolet Extinction Curves. IV. Extinction without Standards [PDF]

open access: yesThe Astronomical Journal, 2005
To appear in the Astronomical Journal (September 2005); 28 pages including 9 ...
Fitzpatrick, Edward L., Massa, Derck
openaire   +2 more sources

MAX-DOAS retrieval of aerosol extinction properties in Madrid, Spain [PDF]

open access: yesAtmospheric Measurement Techniques, 2016
Multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements were performed in the urban environment of Madrid, Spain, from March to September 2015.
S. Wang   +3 more
doaj   +1 more source

Evidence of excited-state lifetime enhancement in dimyristoyl-phosphocholine nanodiscs by ultraviolet absorption spectroscopy

open access: yesAIP Advances, 2023
Ultraviolet absorption spectroscopy is an analytical tool that is commonly utilized to determine protein concentrations, primarily due to characteristic absorption of tryptophan and tyrosine at 280 nm. Accurate concentration determination is essential to
Philip A. Kocheril   +2 more
doaj   +1 more source

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