Results 91 to 100 of about 2,805 (218)
Interstellar extinction from photometric surveys: Application to four high-latitude areas [PDF]
, 2020 © 2018 O. Malkov et al. Information on interstellar extinction and dust properties may be obtained from modern large photometric surveys data. Virtual Observatory facilities allow users to make a fast and correct cross-identification of objects from ...
core
Estimation of Host Galaxy Extinction for SNe Ia
GalaxiesType Ia supernovae are used as fundamental probes of the cosmological parameters, based on a tight empirical relation between their peak luminosity and the width of their light curve. However, it has been recognized that SNe Ia are not “standard” candles,
Oleg Malkov +3 more
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Variations of the Ratio of Total-To-selective Extinction in the Galaxy
Open Astronomy, 2003 The results of the study of variations of total-to-selective extinction RV near the Galactic plane (-12° ≤ b ≤+12°) are presented. It is shown that variations of RV range from 1.9 to 3.4 and it is not possible to determine its typical value for the ...
Sūdžius J., Raudeliūnas S.
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Interstellar extinction and polarization in the infrared
The Astrophysical Journal, 1990 The wavelength dependences of interstellar continuum extinction and polarization in the range 0.35-5 microns are examined. The existence of a universal extinction curve with power law index of about 1.8 extending from the near-IR to at least 5 microns appears to be established for both diffuse and dense cloud dust.
P. G. Martin, D. C. B. Whittet
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Open Astronomy, 2003 Seven-color photometry in the Vilnius system has been obtained for 420 stars down to V = 16 mag in the area containing the overlapping open clusters NGC 1750 and NGC 1758 in Taurus.
Straižys V. +8 more
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The variation of interstellar extinction in the ultraviolet [PDF]
Monthly 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 ...
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Interstellar Dust Models: Extinction, Absorption and Emission [PDF]
, 2009 The observational constraints on interstellar dust are summarized. A dust model, consisting of a mixture of amorphous silicate, graphite, and PAH material that reproduces the observed interstellar extinction, is described.
B.T. Draine
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Luminosity Distance and Extinction by Submicrometer-sized Grains
The Astrophysical Journal LettersThe distance to the stars is a fundamental parameter, which is determined via two primary methods—parallax and luminosity. While the parallax is a direct trigonometric method, the luminosity distance is usually influenced by interstellar extinction.
R. Siebenmorgen, Frank Heymann, R. Chini
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Narrow absorption lines from intervening material in supernovae
Astronomy & AstrophysicsNarrow interstellar absorption features in supernova (SN) spectra serve as valuable diagnostics for probing dust extinction and the presence of circumstellar or interstellar material.
Gutiérrez Claudia P. +3 more
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Visual - near-infrared properties of the interstellar extinction towards the Galactic bulge with RR Lyrae stars [PDF]
, 2018 Towards the bulge, studies of interstellar extinction are generally limited by uncertainties in the individual distances, magnitudes, and colors of the most commonly utilized stellar tracers.
Catelan, Márcio +7 more
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