Results 31 to 40 of about 1,811,090 (221)
Dust evolution, a global view: III. Core/mantle grains, organic nano-globules, comets and surface chemistry [PDF]
Royal Society Open Science, 2016 Within the framework of The Heterogeneous dust Evolution Model for Interstellar Solids (THEMIS), this work explores the surface processes and chemistry relating to core/mantle interstellar and cometary grain structures and their influence on the nature ...
A. P. Jones
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Chemistry, 2021 Few anions exhibit electronically excited states, and, if they do, the one or two possible excitations typically transpire beyond the visible spectrum into the near-infrared.
Taylor J. Santaloci, Ryan C. Fortenberry
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Interstellar Absorption of Some Be Stars [PDF]
International Astronomical Union Colloquium, 1987 It is well known that the intrinsic colors of Be stars are not the same as those of “normal” B stars and they are often redder. So interstellar absorption of Be stars determined from photometric indices may be overestimated. In order to avoid this, a method often used to determine the interstellar absorption of Be stars is based on the ultraviolet ...
D. Briot, J. Zorec
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ISMabs: A COMPREHENSIVE X-RAY ABSORPTION MODEL FOR THE INTERSTELLAR MEDIUM [PDF]
, 2014 We present an X-ray absorption model for the interstellar medium, to be referred to as ISMabs, that takes into account both neutral and ionized species of cosmically abundant elements, and includes the most accurate atomic data available.
E. Gatuzz +4 more
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Narrow absorption lines from intervening material in supernovae
Astronomy & AstrophysicsNarrow interstellar absorption features in supernova (SN) spectra serve as valuable diagnostics for probing dust extinction and the presence of circumstellar or interstellar material.
Gutiérrez Claudia P. +3 more
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Creating a new paradigm for the local interstellar medium–A perspective
Frontiers in Astronomy and Space Sciences, 2023 The interstellar medium close to the Sun called the local ISM (LISM) provides critical insights into physical processes and phenomena in the more distant interstellar medium in our Galaxy without the confusion of many complex structures in the sight ...
Jeffrey L. Linsky, Seth Redfield
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A search for interstellar absorptions towards Sgr dSph [PDF]
Astronomy & Astrophysics, 2005 accepted by Astronomy & ...
Monai, S., Bonifacio, P., Sbordone, L.
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Distribution of Interstellar Reddening Material in the Galactic Plane [PDF]
Journal of Astronomy and Space Sciences, 1987 By using the recently determined color excess and distance data of classical cepheids by Kim(1985), the distribution of interstellar reddening material was studied to see the general picture of the average rate of interstellar absorption out to about 7 ...
Chulhee Kim
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Abundance Ratios of OH/CO and HCO+/CO as Probes of the Cosmic-Ray Ionization Rate in Diffuse Clouds
The Astrophysical Journal, 2023 The cosmic-ray ionization rate (CRIR, ζ _2 ) is one of the key parameters controlling the formation and destruction of various molecules in molecular clouds. However, the current most commonly used CRIR tracers, such as ${{\rm{H}}}_{3}^{+}$ , OH ^+ , and
Gan Luo +8 more
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Observations of Multiphase, High-velocity, Shocked Gas in the Vela Supernova Remnant
The Astrophysical Journal, 2023 We present an analysis of high-resolution far-UV archival spectra obtained with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope of the star HD 75309, which probes high-velocity shocked gas in the Vela supernova remnant (SNR).
Adam M. Ritchey
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