Results 21 to 30 of about 386,435 (271)
Circumstellar Dust, PAHs, and Stellar Populations in Early-Type Galaxies: Insights from GALEX and WISE [PDF]
, 2016 A majority of early-type galaxies contain interstellar dust, yet the origin of this dust, and why the dust sometimes exhibits unusual polycyclic aromatic hydrocarbon (PAH) ratios, remains a mystery.
G. Simonian, P. Martini
semanticscholar +1 more source
CIRCUMSTELLAR DUST AROUND AGB STARS AND IMPLICATIONS FOR INFRARED EMISSION FROM GALAXIES [PDF]
, 2015 Stellar population synthesis (SPS) models are used to infer many galactic properties including star formation histories, metallicities, and stellar and dust masses.
A. Villaume +2 more
semanticscholar +1 more source
Astromineralogy of Circumstellar Oxide Dust [PDF]
Publications of the Astronomical Society of the Pacific, 2005 Oxides are among the less abundant species of cosmic dust (as compared, e.g., to silicates). Nevertheless, they are of decisive importance for the first stages of the condensation process in oxygen-rich circumstellar shells of AGB stars. The present work gives an overview of oxygen dust species that have been examined so far by means of astronomical ...
openaire +4 more sources
The Astrophysical Journal, 2023 The first step toward planet formation is grain growth from (sub)micrometer to millimeter/centimeter sizes. Grain growth has been reported not only in Class II protoplanetary disks but also in Class 0/I protostellar envelopes.
Ilseung Han +4 more
doaj +1 more source
ISO spectroscopy of circumstellar dust in the Herbig Ae systems AB Aur and HD 163296 [PDF]
, 2000 Using both the Short- and Long-wavelength Spectrometers on board the Infrared Space Observatory (ISO), we have obtained infrared spectra of the Herbig Ae systems AB Aur and HD 163296. In addition, we obtained ground-based N band images of HD 163296.
Ancker, M. E. van den +5 more
core +14 more sources
Delayed Shock-induced Dust Formation in the Dense Circumstellar Shell Surrounding the Type IIn Supernova SN 2010jl [PDF]
, 2018 The light curves of Type IIn supernovae are dominated by the radiative energy released through the interaction of the supernova shock waves with their dense circumstellar medium (CSM).
A. Sarangi, E. Dwek, R. Arendt
semanticscholar +1 more source
Temperature Distributions in Circumstellar Dust Shells [PDF]
Symposium - International Astronomical Union, 1987 The knowledge of the temperature distribution in circumstellar dust shells (CDS) is needed for both the calculation of the emergent IR spectrum and the modelling of physical processes, e.g. dust formation.
Th. Henning, J. Gürtler
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The Astrophysical Journal Supplement Series, 2023 Astronomical observations of the polarized intensity of scattered visible light have revealed the presence of dust envelopes around different types of evolved stars.
Juan Carlos Gómez Martín +10 more
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Constraints on the circumstellar dust around KIC 8462852 [PDF]
, 2015 © The Authors 2016. Published by Oxford University Press on behalf of The Royal Astronomical Society. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0 ...
M. Thompson +11 more
semanticscholar +1 more source
Constraining dust properties in circumstellar envelopes of C-stars in the Magellanic Clouds: Optical constants and grain size of carbon dust [PDF]
Proceedings of the International Astronomical Union, 2016 We present a new approach aimed at constraining the typical size and optical properties of carbon dust grains in Circumstellar envelopes (CSEs) of carbon-rich stars (C-stars) in the Small Magellanic Cloud (SMC).
A. Nanni +8 more
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