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The diffuse interstellar bands

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Published by Kluwer Academic Publishers in Dordrecht, Boston .
Written in English

Subjects:

  • Stars -- Spectra -- Congresses,
  • Astronomical spectroscopy -- Congresses,
  • Astrophysics -- Congresses

Book details:

Edition Notes

Statementedited by A.G.G.M. Tielens and T.P. Snow.
SeriesAstrophysics and space science library ;, v. 202
ContributionsTielens, A. G. G. M., Snow, Theodore P.
Classifications
LC ClassificationsQB870 .D54 1995
The Physical Object
Paginationx, 415 p. :
Number of Pages415
ID Numbers
Open LibraryOL794515M
ISBN 100792336291
LC Control Number95030317

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The mystery of the diffuse interstellar bands has been variously a curiosity, a co­ nundrum, and a nuisance for astronomers in the seven decades since the features were first noticed, but recently they have become a forefront issue in astrophysics. Ever since Paul Merrill, in a series of papers. The mystery of the diffuse interstellar bands has been variously a curiosity, a co nundrum, and a nuisance for astronomers in the seven decades since . Get this from a library! The Diffuse Interstellar Bands. [A G G M Tielens; T P Snow] -- While the origin of the diffuse interstellar bands in interstellar rather than stellar material was established soon after their discovery early in this century, their precise identification has. diffuse interstellar bands A series of more than a dozen diffuse (wide) absorption features due to dust in interstellar clouds, of which the most intense include those at wavelengths of , , and are at least three (but possibly more) families of bands. The carriers have not yet been identified, although they are almost certainly solids: evidence is mounting in favor of .

In a sample of diffuse cloud sightlines spanning a wide range of interstellar environments, we find the equivalent widths of the diffuse interstellar bands (DIBs) λ and λ to be. The diffuse interstellar bands are absorption features observed in the spectra of stars seen through significant column densities of interstellar material. Of the confirmed DIBs in the optical region between and about /Lm, only 2 have (tentatively) been identified with a specific carrier. Because DIB strengths increase roughly in proportion to color excess, they Cited by: The mystery of the diffuse interstellar bands has been variously a curiosity, a co­ nundrum, and a nuisance for astronomers in the seven decades since the features were first noticed, but recently they have become a forefront issue in astrophysics. Ever since Paul Merrill, in a Price: $ As a result of the search for the identity of the chromophores responsible for producing the diffuse interstellar bands, a comprehensive exposition of experimental data is presented, which implicates the following molecules: (1) The extremely stable organic molecules, magnesium tetrabenzoporphyrin (MgTBP) and H 2 TBP. (2) A paraffin matrix (referred to as “grains”) Cited by: 6.

Diffuse interstellar bands was one of the Natural sciences good articles, but it has been removed from the are suggestions below for improving the article to meet the good article these issues have been addressed, the article can be s may also seek a reassessment of the decision if they believe there was a mistake.   The diffuse interstellar bands (DIBs) are broad spectroscopic absorption features of unknown origin, which occur in the optical and near-infrared spectra of stars as their light passes through the interstellar medium. The mystery of the diffuse interstellar bands has been variously a curiosity, a co­ nundrum, and a nuisance for astronomers in the seven decades since the features were first noticed, but recently they have become a forefront issue in astrophysics. Ever since Paul Merrill, in a series of papers starting in , pointed out the interstellar and unidentified nature of the bands, a Who's Who . – Arguments in favour of C60+ and its analogues as carriers of the diffuse interstellar bands. Then particularly intriguing was the possibility that C60 or some analogues (ionised species such as C60+, endohedral fullerenes [email protected]+, and analogues M+ C60) might be carriers of the Diffuse Interstellar Bands. It seemed that it might.