Results 71 to 80 of about 267,461 (212)

Interstellar Dust - A Review [PDF]

, 2012
The study of the formation and the destruction processes of cosmic dust is essential to understand and to quantify the budget of extraterrestrial organic materials.
Salama, Farid
core  

On the Active Sites of Mg-bearing Interstellar Dust Grains: An Experimental and Theoretical Model Study of CO2 Activation

The Astrophysical Journal
Magnesium silicates represent an important component of interstellar dust. While the formation of molecules in the interstellar region is typically thought to take place in icy mantles covering such dust particles, the bare uncovered grains are hardly ...
Sandra M. Lang, Thorsten M. Bernhardt, Joost M. Bakker   +2 more
doaj   +1 more source

The Near-infrared Extinction Law at High and Low Galactic Latitudes

The Astrophysical Journal
The Milky Way dust extinction curve in the near-infrared (NIR) follows a power-law form, but the value of the slope, β _NIR , is debated. Systematic variations in the slope of the Milky Way UV extinction curve are known to be correlated with variations ...
Robert E. Butler, Samir Salim
doaj   +1 more source

The binding energies of atoms on amorphous silicate dust: A computational study

Astronomy & Astrophysics
Context. We investigate the binding energies of atoms to interstellar dust particles, which play a key role in their growth and evolution as well as the chemical reactions on their surfaces. Aims.
Hansson Kristoffer, Sameera W. M. C., Esmerian Clarke J., Bossion Duncan, Andersson Stefan, Aalto Susanne, Vlemmings Wouter, Knudsen Kirsten K., Nyman Gunnar   +8 more
doaj   +1 more source

Exploring the dusty Universe

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2005
Dust is an ubiquitous inhabitant of the interstellar medium, and leaves an unmistakable signature in its optical properties, and physico-chemical evolution.
Borghese, F, Denti, P, Giusto, A, Saija, R, Iati', MA   +4 more
doaj   +1 more source

ALMA Reveals Diverse Dust-to-gas Mass Ratios and Quenching Modes in Old Quiescent Galaxies

The Astrophysical Journal Letters
Recent discoveries of dust and molecular gas in quiescent galaxies (QGs) up to z ∼ 4 challenge the long-standing view that the interstellar medium depletes rapidly once star formation ceases, raising key questions of whether dust and gas coevolve in QGs,
G. Lorenzon, D. Donevski, A. W. S. Man, M. Romano, K. E. Whitaker, S. Belli, D. Liu, M. M. Lee, D. Narayanan, A. Long, I. Shivaei, A. Nanni, K. Lisiecki, P. Sawant, G. Rodighiero, I. Damjanov, Junais, R. Davé, C. Pappalardo, C. Lovell, M. Hamed   +20 more
doaj   +1 more source

INTERSTELLAR DUST AS A DYNAMIC ENVIRONMENT

CONTRIBUTED PAPERS & ABSTRACTS of INVITED LECTURES, TOPICAL INVITED LECTURES and PROGRESS REPORTS: 32nd SUMMER School and International Symposium on the Physics of Ionized Gases
13 pages, 5 figures, accepted for publication on Special Issue of Advances in Space ...
La Mura, G., Mulas, G., Iatì, M. A., Cecchi-Pestellini, C., Rezaei, S., Saija, R.   +5 more
openaire   +2 more sources

New Candidate Massive Clusters from 2MASS [PDF]

, 2013
Massive stars are important for the evolution of the interstellar medium. The detailed study of their properties (such as mass loss, rotation, magnetic fields) is enormously facilitated by samples of these objects in young massive galactic star clusters.
Dirk Froebrich, Froebrich, Dirk
core   +1 more source

Infrared Spectroscopy of Interstellar Dust

, 2009
IR spectroscopy is the premier tool to study the composition of interstellar dust. Broad absorption and emission bands provide direct identification of the solid compounds present in space and allow measurement of accurate abundances. Systematic studies
A.G.G.M. Tielens
core   +1 more source

Properties of interstellar dust [PDF]

Journal of Geophysical Research: Space Physics, 2000
The reference abundance of the interstellar medium (the abundance of elements in gas + dust), until recently assumed to be solar, is discussed because of its great importance for the composition of dust. For some important elements (O, N, and probably more), three lines of reasoning (observed gas‐phase abundances, H II regions, and stellar abundances ...
openaire   +1 more source