Results 81 to 90 of about 49,325 (179)

Circumstellar dust [PDF]

The presence of dust in the general interstellar medium is inferred from the extinction, polarization, and scattering of starlight; the presence of dark nebulae; interstellar depletions; the observed infrared emission around certain stars and various ...
Dwek, E.
core   +1 more source

On the (in)variance of the dust-to-metals ratio in galaxies

, 2014
Recent works have demonstrated a surprisingly small variation of the dust-to-metals ratio in different environments and a correlation between dust extinction and the density of stars.
Andersen, Anja C., De Cia, Annalisa, Mattsson, Lars, Zafar, Tayyaba   +3 more
core   +1 more source

The extinction law from photometric data: linear regression methods

, 2012
Context. The properties of dust grains, in particular their size distribution, are expected to differ from the interstellar medium to the high-density regions within molecular clouds.
Akritas, Alves, Bessell, C. J. Lada, Cambrésy, Chapman, Chapman, Draine, Flaherty, Fritz, Indebetouw, Isobe, J. Alves, J. Ascenso, Jones, Kenyon, Lombardi, Lutz, M. Lombardi, Martin, McClure, Nishiyama, Nishiyama, Ossenkopf, Rieke, Román-Zúñiga, Seares, Steinacker, Whittet, Whittet   +29 more
core   +1 more source

Dust properties along anomalous extinction sightlines. II. Studying extinction curves with dust models

, 2010
The large majority of extinction sight lines in our Galaxy obey a simple relation depending on one parameter, the total-to-selective extinction coefficient, Rv.
Barbaro, Barbaro, Barlow, Bohlin, Cardelli, Cardelli, Carnochan, Clayton, Clayton, Cowie, Draine, Draine, Draine, Esipov, Fitzpatrick, Fitzpatrick, Fitzpatrick, Fitzpatrick, Fresneau, G. Barbaro, Geminale, Georgelin, Gordon, Jenniskens, Jones, Jones, Li, Li, Li, Liu, Mathis, Mathis, Mattioda, Mazzei, Meyer, P. Mazzei, Papaj, Points, Qin, Reed, Savage, Straižys, Urquhart, Valencic, van Dishoeck, Wakker, Wakker, Wegner, Wegner, Weingartner, Wesselius, Wu, Wu, Zubko   +53 more
core   +1 more source

From interstellar abundances to grain composition: the major dust constituents Mg, Si and Fe

, 2010
We analyse observational correlations for three elements entering into the composition of interstellar silicate and oxide grains. Using current solar abundances (Asplund et al. 2009), we convert the gas-phase abundances into dust-phase abundances for 196
Henning, Th., Voshchinnikov, N. V.
core   +1 more source

Large-scale variations of the dust optical properties in the Galaxy

, 2005
We present an analysis of the dust optical properties at large scale, for the whole galactic anticenter hemisphere. We used the 2MASS Extended Source Catalog to obtain the total reddening on each galaxy line of sight and we compared this value to the ...
Abergel, Arce, Bernard, Boulanger, Burstein, C. A. Beichman, Cambrésy, Cambrésy, Chen, Dale, del Burgo, Dupac, Dutra, Dutra, Dutra, Dwek, Désert, Jarrett, Jarrett, Jarrett, Jarrett, Jarrett, Jarrett, Johnstone, L. Cambrésy, Lada, Lagache, Laureijs, Lehtinen, Padoan, Rieke, Saunders, Schlegel, Stepnik, T. H. Jarrett, Thoraval   +35 more
core   +4 more sources

The role of the charge state of PAHs in ultraviolet extinction

, 2008
Aims: We explore the relation between charge state of polycyclic aromatic hydrocarbons (PAHs) and extinction curve morphology. Methods: We fit extinction curves with a dust model including core-mantle spherical particles of mixed chemical composition ...
Cecchi-Pestellini, C., Joblin, C., Malloci, G., Mulas, G., Williams, D. A.   +4 more
core   +1 more source

Interstellar Extinction and Polarization in the Taurus Dark Clouds: The Optical Properties of Dust near the Diffuse/Dense Cloud Interface [PDF]

, 2001
D. C. B. Whittet, P. A. Gerakines, J. H. Hough, S. Shenoy   +3 more
openalex   +1 more source

DIBs, Interstellar Dust, and Extinction [PDF]

, 2013
Geoffrey C. Clayton
openalex   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source