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Related papers: Dust Emissivity Variations In the Milky Way

200 papers

(Abridged) In this paper, we use the Tuffs et al. attenuation - inclination models in ultraviolet (UV), optical, and near-infrared (NIR) bands to investigate the average global dust properties in galaxies as a function of stellar mass…

Astrophysics of Galaxies · Physics 2022-06-14 S. A. van der Giessen , S. K. Leslie , B. Groves , J. A. Hodge , C. C. Popescu , M. T. Sargent , E. Schinnerer , R. J. Tuffs

With Planck and Herschel, we now have the spectral coverage and angular resolution required to observe dense and cold molecular clouds. As these clouds are optically thick at short wavelength but optically thin at long wavelength, it is…

The abundance evolution of interstellar dust species originating from stellar sources and from condensation in molecular clouds in the local interstellar medium of the Milky Way is studied and the input of dust material to the Solar System…

Astrophysics · Physics 2009-11-13 Svitlana Zhukovska , Hans-Peter Gail , Mario Trieloff

The evolution of the cosmic dust content and the cycle between metals and dust in the interstellar medium (ISM) play a fundamental role in galaxy evolution. The chemical enrichment of the Universe can be traced through the evolution of the…

We present a comparison of the presence and properties of dust in two distinct phases of the Milky Way's interstellar medium: the warm neutral medium (WNM) and the warm ionized medium (WIM). Using distant pulsars at high Galactic latitudes…

Astrophysics of Galaxies · Physics 2023-11-17 J. L. West , B. M. Gaensler , M. -A. Miville-Deschênes , N. Mahajan , J. Dechant , F. Boulanger , P. G. Martin , I. A. Zelko

We study infrared emission of 17 isolated, diffuse clouds with masses of order solar masses, to test the hypothesis that grain property variations cause the apparently low gas-to-dust ratios that have been measured in those clouds. Maps of…

Astrophysics of Galaxies · Physics 2018-08-13 William T. Reach , Jean-Philippe Bernard , Thomas Jarrett , Carl Heiles

Context. The evolution of amorphous hydrocarbon materials, a-C(:H), principally resulting from ultraviolet (UV) photon absorption- induced processing, are likely at the heart of the variations in the observed properties of dust in the…

Astrophysics of Galaxies · Physics 2014-11-25 A. P. Jones , L. Fanciullo , M. Koehler , L. Verstraete , V. Guillet , M. Bocchio , N. Ysard

We have used the Spitzer Space Telescope to study the dust properties of a sample of star-forming dwarf galaxies. The differences in the mid-infrared spectral energy distributions for these galaxies which, in general, are low metallicity…

We present evolutionary calculations for the size and aromatization degree distributions of interstellar dust grains, driven by their destruction by radiation, collisions with gas particles, and shattering due to grain-grain collisions.…

Solar and Stellar Astrophysics · Physics 2016-12-07 M. S. Murga , S. A. Khoperskov , D. S. Wiebe

Investigating the molecular gas in the inner regions of protoplanetary disks provides insight into how the molecular disk environment changes during the transition from primordial to debris disk systems. We conduct a small survey of…

Solar and Stellar Astrophysics · Physics 2015-10-14 Keri Hoadley , Kevin France , Richard D Alexander , Matthew McJunkin , Christian Schneider

The galactic anomalous microwave emission detected between 10 and 90 GHz is a major foreground to CMB fluctuations. Well correlated to dust emission at 100 $\mu$m, the anomalous emission is interstellar but its origin is still debated. Some…

Astrophysics of Galaxies · Physics 2015-05-13 Nathalie Ysard , Marc-Antoine Miville-Deschenes , Laurent Verstraete

The Planck and Herschel missions are currently measuring the farIR-mm emission of dust, which combined with existing IR data, will for the first time provide the full SED of the galactic ISM dust emission with an unprecedented sensitivity…

Astrophysics of Galaxies · Physics 2015-05-20 M. Compiegne , L. Verstraete , A. Jones , J. -P. Bernard , F. Boulanger , N. Flagey , J. Le Bourlot , D. Paradis , N. Ysard

We present cosmological zoom-in hydro-dynamical simulations for the formation of disc galaxies, implementing dust evolution and dust promoted cooling of hot gas. We couple an improved version of our previous treatment of dust evolution,…

Observations of far-infrared (FIR) and submillimeter (SMM) polarized emission are used to study magnetic fields and dust grains in dense regions of the interstellar medium (ISM). These observations place constraints on models of molecular…

Astrophysics · Physics 2009-03-19 John E. Vaillancourt

We present an analysis of the first space-based far-IR-submm observations of M 33, which measure the emission from the cool dust and resolve the giant molecular cloud complexes. With roughly half-solar abundances, M33 is a first step…

We report optical extinction properties of dust for a sample of 26 early-type galaxies based on the analysis of their multicolour CCD observations. The wavelength dependence of dust extinction for these galaxies is determined and the…

Astrophysics · Physics 2007-05-23 M. K. Patil , S. K. Pandey , D. K. Sahu , A. K. Kembhavi

Our aim is to compare the infrared properties of big, ``classical'' dust grains with visual extinction in the cloud L1642. In particular, we study the differences of grain emissivity between diffuse and dense regions in the cloud. The…

Astrophysics · Physics 2009-11-13 K. Lehtinen , M. Juvela , K. Mattila , D. Lemke , D. Russeil

Dust grains in the interstellar medium interact with photons across the electromagnetic spectrum. They are generally photon energy converters, absorbing short wavelength radiation and emitting long wavelength radiation. Sixty years ago in…

Astrophysics of Galaxies · Physics 2026-01-19 Yancy L. Shirley , Jeffrey G. Mangum , Desika Narayanan , James Di Francesco

Single flux density measurements at observed-frame sub-millimeter and millimeter wavelengths are commonly used to probe dust and gas masses in galaxies. In this Letter, we explore the robustness of this method to infer dust mass, focusing…

Astrophysics of Galaxies · Physics 2022-11-16 R. K. Cochrane , C. C. Hayward , D. Anglés-Alcázar

We have studied the FIR/{\it mm} spectrum of IR galaxies by combining IRAS photometry with new {\it mm} data on a complete southern IRAS galaxy sample. The observed spectra and a dust model emphasize a dicothomy in the galaxy population:…

Astrophysics · Physics 2016-01-27 P. Andreani , A. Franceschini