Results 61 to 70 of about 50,798 (260)
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011 We present a model for interstellar extinction dust, in which we assume a bimodal distribution of extinction carriers, a dispersion of core-mantle grains, supplemented by a collection of PAHs in free molecular form.
C. Cecchi-Pestellini +7 more
doaj +1 more source
THEMIS 2.0: A self-consistent model for dust extinction, emission, and polarisation [PDF]
Astronomy & AstrophysicsRecent observational constraints in emission, extinction, and polarisation have at least partially invalidated most of the astronomical standard grain models for the diffuse interstellar medium.
N. Ysard +8 more
semanticscholar +1 more source
The nature of interstellar dust as revealed by light scattering
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011 Interstellar dust was first identified through the extinction that it causes of optical starlight. Initially, observational and theoretical studies of extinction were made to identify simple ways of removing the effect of extinction.
D. A. Williams
doaj +1 more source
An imaging polarimetry survey of Type Ia supernovae: are peculiar extinction and polarization properties produced by circumstellar or interstellar matter? [PDF]
, 2021 Some highly reddened Type Ia supernovae (SNe Ia) display low total-to-selective extinction ratios ($R_V \lesssim 2$) in comparison to that of typical Milky Way dust ($R_V \approx 3.3$), and polarization curves that rise steeply to blue wavelengths, with ...
Matthew R. Chu +10 more
semanticscholar +1 more source
The extinction and dust-to-gas structure of the planetary nebula NGC 7009 observed with MUSE [PDF]
, 2016 The large field and wavelength range of MUSE is well suited to mapping Galactic planetary nebulae (PN). The bright PN NGC 7009 was observed with MUSE on the VLT during the Science Verification of the instrument in seeing of 0.6".
Barlow, M. J. +5 more
core +3 more sources
Diffuse interstellar bands as dust indicators: The contribution from 3D maps [PDF]
Astronomy & AstrophysicsThree-dimensional (3D) distributions of the 862 nm diffuse interstellar band (DIB) carrier have been computed based on Gaia parallaxes and DIB catalogues, in parallel with 3D maps of dust extinction density.
R. Lallement, J. Vergely, N.L.J. Cox
semanticscholar +1 more source
INTERSTELLAR DUST GRAINS [PDF]
, 2003 ▪ Abstract This review surveys the observed properties of interstellar dust grains: the wavelength-dependent extinction of starlight, including absorption features, from UV to infrared; optical luminescence; infrared emission; microwave emission; optical,
B. Draine
semanticscholar +1 more source
Gaia-2MASS 3D maps of Galactic interstellar dust within 3 kpc [PDF]
Astronomy & Astrophysics, 2019 Gaia stellar measurements are currently revolutionizing our knowledge of the evolutionary history of the Milky Way. 3D maps of the interstellar dust provide complementary information and are a tool for a wide range of uses.
R. Lallement +7 more
semanticscholar +1 more source
Three-dimensional Distribution of the Interstellar Dust in the Milky Way [PDF]
, 2020 We present a three-dimensional (3D) extinction map of the southern sky. The map covers the SkyMapper Southern Survey (SMSS) area of ∼14,000 deg2 and has spatial resolutions between 6.′9 and 27′.
H.-L. Guo +8 more
semanticscholar +1 more source
The Power of the Rings: The GRB 221009A Soft X-Ray Emission from Its Dust-scattering Halo
The Astrophysical Journal Letters, 2023 GRB 221009A is the brightest gamma-ray burst (GRB) ever detected that has occurred at low Galactic latitude. Owing to this exceptional combination, its prompt X-ray emission could be detected for weeks in the form of expanding X-ray rings produced by ...
Andrea Tiengo +13 more
doaj +1 more source