Results 11 to 20 of about 678,354 (195)

Interstellar fullerene compounds and diffuse interstellar bands [PDF]

open access: yesAstronomy & Astrophysics, 2016
29 pages, 6 figures, revised as published in Astronomy and ...
Alain Omont, Omont, Alain
openaire   +4 more sources

Polyacenes and diffuse interstellar bands [PDF]

open access: yesAstronomy & Astrophysics, 2019
The identification of the carriers of the diffuse interstellar bands (DIBs) remains to be established, with the exception of five bands attributed to C60+, although it is generally agreed that DIB carriers should be large carbon-based molecules (with ~10–100 atoms) in the gas phase, such as polycyclic aromatic hydrocarbons (PAHs), long carbon chains or
A. Omont, H. F. Bettinger, C. Tönshoff
openaire   +4 more sources

A Nest of Diffuse Interstellar Bands—Likely of Common Origin

open access: yesThe Astronomical Journal
Diffuse interstellar bands (DIBs) have been proposed to cluster into distinct “families” each potentially linked to a single carrier molecule. In our study, we focus on identifying such a family within the spectral range of approximately 4945–4990 Å ...
J. Krełowski   +2 more
doaj   +2 more sources

Probing the diffuse interstellar medium with diffuse interstellar bands [PDF]

open access: yes, 2014
This work investigates the small scale structure of the Diffuse Interstellar Medium. To do this optical spectroscopy is used to obtain spectra of early type stars which are used as background targets with which the Diffuse Interstellar Medium (ISM) is probed.
Bailey, Amanda
core   +9 more sources

Linear and circular spectropolarimetry of diffuse interstellar bands [PDF]

open access: yesAstronomy & Astrophysics, 2011
6 pages + 13 pages online material, submitted to A& ...
Cox, N. L. J.   +5 more
openaire   +3 more sources

Putting the Diffuse Interstellar Bands on the Map – Literally! [PDF]

open access: yesProceedings of the International Astronomical Union, 2013
AbstractIn a quest to further our understanding of the diffuse interstellar medium (ISM) as well as the unidentified carriers of the diffuse interstellar bands (DIBs), we are mapping DIBs across the sky using hundreds of hot stars as background torches – globular clusters (in particular ω Centauri), nearby stars in and around the Local Bubble, and ...
van Loon, J. Th.
openaire   +3 more sources

High‐Pressure Carbonaceous Phases as Minerals

open access: yesGeophysical Monograph Series, Page 11-23., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Oliver Tschauner
wiley  

+1 more source

Diffuse interstellar bands in fullerene planetary nebulae: the fullerenes – diffuse interstellar bands connection [PDF]

open access: yesAstronomy & Astrophysics, 2013
We present high-resolution (R~15000) VLT/UVES optical spectra of two planetary nebulae (PNe; Tc 1 and M 1-20) where C60 (and C70) fullerenes have already been found. These spectra are of high-quality (S/N > 300) for PN Tc 1, which permits us to search for the expected electronic transitions of neutral C60 and diffuse interstellar bands (DIBs ...
Garcia-Hernandez, D. A.   +1 more
openaire   +2 more sources

Complex Organics in Space: A Changing View of the Cosmos

open access: yesGalaxies, 2023
Planetary explorations have revealed that complex organics are widely present in the solar system. Astronomical infrared spectroscopic observations have discovered that complex organics are synthesized in large quantities in planetary nebulae and ...
Sun Kwok
doaj   +1 more source

A Comparison of the Simulations and Observations for a Nearby Spiral Arm

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The analysis is focused on the ability of galactic open clusters to trace the spiral arms, based on the recent data releases from Gaia. For this, a simple 1D description of the motion of spiral arms and clusters is introduced.
Martin Piecka, Ernst Paunzen
doaj   +1 more source

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