Results 91 to 100 of about 21,871 (195)

Diffuse Interstellar Bands: Past and Present [PDF]

open access: yesProceedings of the International Astronomical Union, 2013
AbstractThe diffuse interstellar bands (DIBs) have come to the fore as an important mystery. This paper presents the history of DIB discovery and research; their importance; a summary of their properties; constraints on proposed identifications; a survey of DIB papers (including graduate student's theses); and a web site that lists DIBs paper from 1922
openaire   +1 more source

Przezroczystość Wszechświata i międzygwiazdowe pasma rozmyte jako wyzwania dla rozwoju wiedzy przyrodniczej

open access: yesZagadnienia Filozoficzne w Nauce, 2017
In general introduction few examples of astronomical explanations of well-known and common local physical phenomena are presented. They are meant to show that it is often much easier to explain commonly experienced phenomena by investigating the behavior
Bogdan Wszołek
doaj  

A search for diffuse bands in fullerene planetary nebulae: evidence of diffuse circumstellar bands

open access: yes, 2014
Large fullerenes and fullerene-based molecules have been proposed as carriers of diffuse interstellar bands (DIBs). The recent detection of the most common fullerenes (C60 and C70) around some planetary nebulae (PNe) now enable us to study the DIBs ...
Cataldo, F.   +4 more
core   +1 more source

Diffuse interstellar bands in the lab [PDF]

open access: yesScience, 2015
Astrochemistry The diffuse interstellar bands (DIBs) are a set of hundreds of broad optical/near-infrared absorption features seen throughout the interstellar medium. Despite the first DIBs being discovered as long ago as 1922, none of the bands has ever been convincingly identified with a particular chemical species. Now Campbell et al.
openaire   +1 more source

A search for diffuse bands in the circumstellar envelopes of post-AGB stars

open access: yes, 2007
In this work we present the results of a systematic search for diffuse bands (DBs, hereafter) in the circumstellar envelopes of a carefully selected sample of post-AGB stars.
Allamandola   +106 more
core   +2 more sources

Where Have All the Sulfur Atoms Gone? Polycyclic Aromatic Hydrocarbon as a Possible Sink for the Missing Sulfur in the Interstellar Medium. I. The C–S Band Strengths

open access: yesThe Astrophysical Journal
Despite its biogenic and astrochemical importance, sulfur (S), the 10th most abundant element in the interstellar medium (ISM) with a total abundance of S/H ≈ 2.2 × 10 ^−5 , largely remains undetected in molecular clouds.
X. J. Yang, Lijun Hua, Aigen Li
doaj   +1 more source

The Multiwavelength Extinction Law and Its Variation in the Coalsack Molecular Cloud Based on the Gaia, APASS, SMSS, 2MASS, GLIMPSE, and WISE Surveys

open access: yesThe Astrophysical Journal
Accurate interpretation of observations relies on the interstellar dust extinction law, which also serves as a powerful diagnostic for probing dust properties.
Juan Deng   +3 more
doaj   +1 more source

Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Our Galaxy [version 2; peer review: 2 approved]

open access: yesOpen Research Europe
As we learn more about the multi-scale interstellar medium (ISM) of our Galaxy, we develop a greater understanding for the complex relationships between the large-scale diffuse gas and dust in Giant Molecular Clouds (GMCs), how it moves, how it is ...
Pamela Klaassen   +40 more
doaj   +1 more source

Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Our Galaxy [version 1; peer review: 2 approved]

open access: yesOpen Research Europe
As we learn more about the multi-scale interstellar medium (ISM) of our Galaxy, we develop a greater understanding for the complex relationships between the large-scale diffuse gas and dust in Giant Molecular Clouds (GMCs), how it moves, how it is ...
Pamela Klaassen   +40 more
doaj   +1 more source

Are aromatic hydrocarbons the carriers of the diffuse interstellar bands in the visible? [PDF]

open access: yes
Large Polycyclic Aromatic Hydrocarbons (PAH) are the likely origin of the Unidentified Infrared Emission Feature. The molecules or their ions are also attractive candidates for the carriers of the Diffuse Interstellar Bands (DIBs) in the visible range ...
Dhendecourt, L., Leger, A.
core   +1 more source

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