Results 11 to 20 of about 21,926 (193)

Diffuse interstellar bands in M33 [PDF]

open access: yesProceedings of the International Astronomical Union, 2013
We present the first sample of diffuse interstellar bands (DIBs) in the nearby galaxy M33. Studying DIBs in other galaxies allows the behaviour of the carriers to be examined under interstellar conditions which can be quite different from those of the ...
Cordiner, Martin A.   +4 more
core   +2 more sources

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.
Diaz-Luis, J. J.   +1 more
core   +2 more sources

Detection of diffuse interstellar bands in M31 [PDF]

open access: yesAstronomy & Astrophysics, 2008
We investigate the diffuse interstellar band (DIB) spectrum in the interstellar medium of M31. The DEIMOS spectrograph of the W. M. Keck observatory was used to make optical spectroscopic observations of two supergiant stars, MAG 63885 and MAG 70817, in ...
Bianchi   +49 more
core   +3 more sources

Mapping The Interstellar Medium With Near-Infrared Diffuse Interstellar Bands [PDF]

open access: yesThe Astrophysical Journal, 2015
We map the distribution and properties of the Milky Way's interstellar medium as traced by diffuse interstellar bands (DIBs) detected in near-infrared stellar spectra from the SDSS-III/APOGEE survey.
Bizyaev, Dmitry   +12 more
core   +4 more sources

First Principles Rovibronic Absorption Spectra of HF Molecule. [PDF]

open access: yesJ Comput Chem
Hydrogen fluoride (HF) is astrophysically important, as it has been detected in sunspots, Venus, red giants, and the interstellar medium, serving as a probe of exoplanet atmospheres. This article presents an ab initio investigation of HF rovibronic spectroscopy, combining high‐level electronic‐structure data with nuclear‐motion solutions and refinement
Abu El Kher N   +5 more
europepmc   +2 more sources

Diffuse Interstellar Bands [PDF]

open access: yesSymposium - International Astronomical Union, 2000
The unidentified diffuse interstellar bands are observed in near-UV, visible and near-IR spectra recorded towards stars which are partially obscured by interstellar dust. Their origin is the longest standing problem in astronomical spectroscopy and dates back to the 1930s when systematic study of the bands first started.
P. J. Sarre, T. R. Kendall
openaire   +1 more source

Broadened profiles of diffuse interstellar bands

open access: yesMonthly Notices of the Royal Astronomical Society, 2021
ABSTRACT The paper describes profile broadening and peak wavelength variation of diffuse interstellar bands (DIBs) measured for 46 lines of sight, probably caused by the physical properties of intervening clouds. The full width at half-maximum of four studied DIBs (5780, 5797, 6196 and 6614 Å) demonstrates strong variability, sometimes ...
J Krełowski   +5 more
openaire   +2 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

Interstellar fullerene compounds and diffuse interstellar bands [PDF]

open access: yesAstronomy & Astrophysics, 2016
29 pages, 6 figures, revised as published in Astronomy and ...
openaire   +3 more sources

Diffuse Interstellar Bands in NGC 1448 [PDF]

open access: yesAstronomy & Astrophysics, 2004
We present spectroscopic VLT/UVES observations of two emerging supernovae, the Type Ia SN 2001el and the Type II SN 2003hn, in the spiral galaxy NGC 1448. Our high resolution and high signal-to-noise spectra display atomic lines of Ca II, Na I, Ti II and K I in the host galaxy. In the line of sight towards SN 2001el, we also detect over a dozen diffuse
Sollerman, J.   +6 more
openaire   +5 more sources

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