Results 21 to 30 of about 21,871 (195)

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

Dust evolution, a global view: II. Top-down branching, nanoparticle fragmentation and the mystery of the diffuse interstellar band carriers [PDF]

open access: yesRoyal Society Open Science, 2016
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
doaj   +1 more source

Synthesis and Spectroscopy of Buckminsterfullerene Cation C60+ in a Cryogenic Ion Trapping Instrument

open access: yesCrystals, 2021
The assignment of several diffuse interstellar bands in the near-infrared to C60+ ions present at high abundance in space has renewed interest in the astrochemical importance of fullerenes and analogues.
Ewen K. Campbell   +2 more
doaj   +1 more source

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

Measuring the 8621 A Diffuse Interstellar Band in Gaia DR3 RVS Spectra: Obtaining a Clean Catalog by Marginalizing over Stellar Types

open access: yesThe Astrophysical Journal, 2023
Diffuse interstellar bands (DIBs) are broad absorption features associated with interstellar dust and can serve as chemical and kinematic tracers.
Andrew K. Saydjari   +4 more
doaj   +1 more source

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

Diffuse Interstellar Bands Toward HD 62542 [PDF]

open access: yes, 2005
Diffuse interstellar bands (DIBs) have been detected for the first time along the peculiar translucent line of sight toward HD 62542, which passes through a diffuse cloud core.
Blake, Geoffrey A.   +2 more
core   +1 more source

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

SEARCH FOR SPECTROSCOPIC FAMILIES AMONG DIFFUSE INTERSTELLAR BANDS

open access: yesOdessa Astronomical Publications, 2010
Diffuse interstellar bands (DIBs) await an explanation for many decades. One expects that significant progress in identification of DIBs’ carriers will be possible when all the known DIBs are divided into families in such a way that only one carrier is ...
B. Wszolek, A. Kuzmicz
doaj   +1 more source

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