Dust Plasma Analogue for Interstellar 217.5 nm Extinction [PDF]
The new ultraviolet (UV) extinction measurements of carbonaceous nanoparticles in the range from 140 nm to 260 nm are presented. The plasma polymerized hydrocarbon nanoparticles were already proposed as a new astro analogue, which describe the infrared (
Stefanović, I.
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Dust evolution, a global view: II. Top-down branching, nanoparticle fragmentation and the mystery of the diffuse interstellar band carriers [PDF]
The origin of the diffuse interstellar bands (DIBs), one of the longest-standing mysteries of the interstellar medium (ISM), is explored within the framework of The Heterogeneous dust Evolution Model for Interstellar Solids (THEMIS). The likely nature of
A P Jones
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Interstellar extinction and polarization - a spheroidal dust grain approach perspective [PDF]
We extend and investigate the spheroidal model of interstellar dust grains used to simultaneously interpret the observed interstellar extinction and polarization curves. We compare our model with similar models recently suggested by other authors, study its properties and apply it to fit the normalized extinction $A(λ)/A_{\rm V}$ and the polarizing ...
H K Das, N V Voshchinnikov, V B Il`In
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Interstellar Dust Models Consistent with Extinction, Emission, and Abundance Constraints [PDF]
70 pages, 23 figures, accepted for publication in the Astrophysical Journal ...
Eli Dwek, Richard G Arendt
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Constraints on interstellar dust models from extinction and spectro-polarimetry [PDF]
We present polarisation spectra of seven stars in the lines-of-sight towards the Sco OB1 association. Our spectra were obtained within the framework of the Large Interstellar Polarization Survey carried out with the FORS instrument of the ESO VLT. We have modelled the wavelength-dependence of extinction and linear polarisation with a dust model for the
R Siebenmorgen +2 more
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Dust in the Small Magellanic Cloud: Interstellar Polarization and Extinction [PDF]
To appear in the ApJ, 50 pages, latex ...
C V Rodrigues, G V Coyne
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Stratified dust grains in the interstellar medium - II. Time-dependent interstellar extinction [PDF]
We consider a model of diffuse cloud dust in which carbon is deposited slowly on the surfaces of silicate cores. The solid carbon is also processed by the interstellar radiation so that its optical properties change with time. The computed interstellar extinction curves (ISECs) for this model evolve in time, lie close to the observed mean ISEC for ...
C Cecchi-Pestellini +2 more
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VUV spectroscopy of carbon dust analogs: contribution to interstellar extinction [PDF]
A full spectral characterization of carbonaceous dust analogs is necessary to understand their potential as carriers of observed astronomical spectral signatures such as the ubiquitous UV bump at 217.5 nm and the far-ultraviolet (FUV) rise common to interstellar extinction curves.
Thomas Pino +2 more
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X-ray extinction from interstellar dust [PDF]
Aims. We present a study on the prospects of observing carbon, sulfur, and other lower abundance elements (namely Al, Ca, Ti, and Ni) present in the interstellar medium using future X-ray instruments. We focus in particular on the detection and characterization of interstellar dust along the lines of sight. Methods.
E Costantini, S T Zeegers, D Rogantini
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Connecting the dusty dots: Dust depletion and extinction of local interstellar clouds
Investigating the chemical complexity of the interstellar medium (ISM) is key for understanding its physical nature and evolution. In this work, we studied parsec-scale interstellar dust clouds in the neutral ISM of the Milky Way using two different ...
Ramburuth-Hurt T. +4 more
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