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We are living in a dusty universe: dust is ubiquitously seen in a wide variety of astrophysical environments, ranging from circumstellar envelopes around cool red giants to supernova ejecta, from diffuse and dense interstellar clouds and…

Astrophysics · Physics 2007-05-23 Aigen Li

We present the mass distribution of interstellar grains measured in situ by the Galileo and Ulysses spaceprobes as cumulative flux. The derived in situ mass distribution per logarithmic size interval is compared to the distribution…

Astrophysics · Physics 2009-10-30 M. Landgraf , E. Gruen

In addition to planets and other small bodies, stellar systems will likely also host exozodiacal dust, or exozodi. This warm dust primarily resides in or near the habitable zone of a star, and scatters stellar light in visible to NIR…

Cosmic-ray electrons and positrons propagating in the Galaxy produce diffuse gamma-rays via the inverse Compton (IC) process. The low energy target photon populations with which the cosmic-rays interact during propagation are produced by…

Astrophysics · Physics 2007-05-23 T. A. Porter , A. W. Strong

We show that space-based telescopes such as the proposed Terrestrial Planet Finder Coronagraph will be able to detect the light scattered by the interstellar grains along lines of sight passing near stars in our Galaxy. The relative flux of…

Astrophysics · Physics 2009-11-13 N. J. Turner , K. Grogan , J. B. Breckinridge

We explore the effects of dust in cosmologically distributed intervening galaxies on the high redshift universe using a generalised model where dust content evolves with cosmic time. The absorbing galaxies are modelled as exponential disks…

Astrophysics · Physics 2009-10-31 Frank Masci , Rachel Webster

Dust is a key component of the Universe, especially regarding galaxies evolution, playing an essential role for both the physics and chemistry of the interstellar medium. In this paper, we give a brief review of interstellar dust. We…

Astrophysics of Galaxies · Physics 2015-03-19 M. Compiegne

The recent detection of the Cosmic Infrared Background in FIRAS and DIRBE residuals, and the observations of IR/submm sources by the ISOPHOT and SCUBA instruments have shed new light on the optically dark side of galaxy formation. It turns…

Astrophysics · Physics 2007-05-23 B. Guiderdoni

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…

Astrophysics · Physics 2009-10-19 L. Cambresy , T. H. Jarrett , C. A. Beichman

It has often been suggested that an alternative to the standard CO/21-cm method for estimating the mass of the interstellar medium (ISM) in a galaxy might be to estimate the mass of the ISM from the continuum dust emission. In this paper,…

In this letter, we estimate how much starlight was absorbed by dust and released in the infrared during the formation of galaxies. New constraints are set on this so-far hidden history by the recent detection of the Cosmic Infrared…

Astrophysics · Physics 2009-10-30 B. Guiderdoni , F. R. Bouchet , J. L. Puget , G. Lagache , E. Hivon

Interstellar dust permeates our Galaxy and plays an important role in many physical processes in the diffuse and dense regions of the interstellar medium. High-resolution X-ray spectroscopy, coupled with modelling based on laboratory dust…

High Energy Astrophysical Phenomena · Physics 2020-10-28 I. Psaradaki , E. Costantini , M. Mehdipour , D. Rogantini , C. P. de Vries , F. de Groot , H. Mutschke , S. Trasobares , L. B. F. M. Waters , S. T. Zeegers

Observations of the clustering of galaxies can provide useful information about the distribution of dark matter in the Universe. In order to extract accurate cosmological parameters from galaxy surveys, it is important to understand how the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Surhud More

The long-awaited promise of studying high-redshift galaxies at long wavelengths has been partially eclipsed by progress at optical wavelengths, mostly because of the number of available pixels. It is nonetheless essential to study optically…

Astrophysics · Physics 2007-05-23 Matthew Malkan

Interstellar dust appears in a number of roles in the interstellar medium. Historically, the most familiar one is as a source of extinction in the optical. Absorbed optical and ultraviolet light heats the dust, whence infrared (including…

Astrophysics · Physics 2016-08-30 P. G. Martin

The X-ray regime is a largely underused resource for constraining interstellar dust grain models and improving our understanding of the physical processes that dictate how grains evolve over their lifetimes. This is mostly due to current…

Galaxies' rest-frame ultraviolet (UV) properties are often used to directly infer the degree to which dust obscuration affects the measurement of star formation rates. While much recent work has focused on calibrating dust attenuation in…

The dense Galactic environment is a large reservoir of interstellar dust. Therefore, this region represents a perfect laboratory to study the properties of the cosmic dust grains. X-rays are the most direct way to detect the interaction of…

High Energy Astrophysical Phenomena · Physics 2020-09-30 D. Rogantini , E. Costantini , S. T. Zeegers , M. Mehdipour , I. Psaradaki , A. J. J. Raassen , C. P. de Vries , L. B. F. M. Waters

Whenever gas is blown out of a galaxy, chances are that it contains some cosmic dust. This dust is an important part of the metals budget for the circumgalactic and intergalactic media, and traces the outflow and stripping history of the…

Astrophysics of Galaxies · Physics 2019-03-26 Edmund Hodges-Kluck , Lía Corrales , Sylvain Veilleux , Joel N. Bregman , Jiangtao Li , Marcio Meléndez

In a galaxy cluster, the relative spatial distributions of dark matter, member galaxies, gas, and intracluster light (ICL) may connote their mutual interactions over the cluster evolution. However, it is a challenging problem to provide a…