Results 131 to 140 of about 50,798 (260)
Interstellar extinction toward the CAS OB6 association: Where is the dust?
The Astronomical Journal, 1993 We have completed a multiband (ultraviolet, optical, and near-infrared) study of the interstellar extinction properties of nine massive stars in IC 1805 and IC 1848, which are both part of Cas OB6 in the Perseus spiral arm. Our analysis includes determination of absolute extinction over the wavelength range from 3 micrometers to 1250 A.
Margaret Murray Hanson +1 more
openaire +1 more source
An Empirical Extinction Curve Revealed by Gaia XP Spectra and LAMOST
The Astrophysical JournalWe present a direct measurement of extinction curves using corrected Gaia XP spectra of the common sources in Gaia DR3 and LAMOST DR7. Our analysis of approximately 370,000 high-quality samples yielded a high-precision average extinction curve for the ...
Ruoyi Zhang +6 more
doaj +1 more source
Far-ultraviolet Dust Extinction and Molecular Hydrogen in the Diffuse Milky Way Interstellar Medium [PDF]
, 2022 Dries Van De Putte +4 more
openalex +1 more source
On the Absorption and Emission Properties of Interstellar Grains
, 2005 Our current understanding of the absorption and emission properties of interstellar grains are reviewed. The constraints placed by the Kramers-Kronig relation on the wavelength-dependence and the maximum allowable quantity of the dust absorption are ...
Li, Aigen
core +1 more source
Foreground Dust Properties toward the Cluster NGC 7380
The Astronomical JournalUsing starlight polarization, we present the properties of foreground dust toward cluster NGC 7380 embedded in H ii region Sh 2-142. Observations of starlight polarization are carried out in four filters using an imaging polarimeter equipped with a 104 ...
Sadhana Singh +6 more
doaj +1 more source
The Astrophysical JournalThe 2175 Å extinction bump, the most prominent spectral feature superimposed on the interstellar extinction curve, is widely seen in the interstellar medium of the Milky Way and external galaxies, both near and far.
Qian Wang, Aigen Li, X. J. Yang
doaj +1 more source
The Astrophysical JournalAccurate correction for extinction by Galactic dust is essential for studying the extragalactic sky. In the low-extinction regions of the Ursa Major molecular cloud complex, we demonstrate that Galactic dust reddening maps constructed from observations ...
Dennis Lee +3 more
doaj +1 more source
Dusty globules in the Crab Nebula
, 2016 From existing broad-band images obtained with the Hubble Space Telescope, we located 92 globules, for which we derived positions, dimensions, orientations, extinctions, masses, proper motions, and their distributions. The globules have mean radii ranging
Elfgren, Erik +2 more
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Extinction Distributions in Nearby Star-resolved Galaxies. I. M31
The Astronomical JournalAn extinction distribution of the Andromeda galaxy (M31) is constructed with member stars as tracers by fitting multiband photometric data from UKIRT/WFCAM, Panoramic Survey Telescope and Rapid Response System 1, and Gaia DR3.
Yuxi Wang +3 more
doaj +1 more source
Dynamical models for dusty disk galaxies [PDF]
, 2000 Disk galaxies contain a large amount of interstellar dust, which affects the projection of kinematic quantities. We investigate in detail the effects of dust extinction on the mean projected velocity and the projected velocity dispersion.
Baes, Maarten, Dejonghe, Herwig
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