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Article: Pseudo-three-dimensional maps of the diffuse interstellar band at 862 nm

TitlePseudo-three-dimensional maps of the diffuse interstellar band at 862 nm
Authors
Issue Date2014
Citation
Science, 2014, v. 345, n. 6198, p. 791-795 How to Cite?
AbstractThe diffuse interstellar bands (DIBs) are absorption lines observed in visual and near-infrared spectra of stars. Understanding their origin in the interstellar medium is one of the oldest problems in astronomical spectroscopy, as DIBs have been known since 1922. In a completely new approach to understanding DIBs, we combined information from nearly 500,000 stellar spectra obtained by the massive spectroscopic survey RAVE (Radial Velocity Experiment) to produce the first pseudo-three-dimensional map of the strength of the DIB at 8620 angstroms covering the nearest 3 kiloparsecs from the Sun, and show that it follows our independently constructed spatial distribution of extinction by interstellar dust along the Galactic plane. Despite having a similar distribution in the Galactic plane, the DIB 8620 carrier has a significantly larger vertical scale height than the dust. Even if one DIB may not represent the general DIB population, our observations outline the future direction of DIB research.
Persistent Identifierhttp://hdl.handle.net/10722/209035
ISSN
2015 Impact Factor: 34.661
2015 SCImago Journal Rankings: 13.217

 

DC FieldValueLanguage
dc.contributor.authorKos, Janez-
dc.contributor.authorZwitter, Tomaž-
dc.contributor.authorWyse, Rosemary F G-
dc.contributor.authorBienaymé, Olivier-
dc.contributor.authorBinney, James J.-
dc.contributor.authorBland-Hawthorn, Joss Bland-
dc.contributor.authorFreeman, Kenneth C.-
dc.contributor.authorGibson, Brad K.-
dc.contributor.authorGilmore, Gerard F.-
dc.contributor.authorGrebel, Eva K.-
dc.contributor.authorHelmi, Amina-
dc.contributor.authorKordopatis, Georges-
dc.contributor.authorMunari, Ulisse-
dc.contributor.authorNavarro, Julio F.-
dc.contributor.authorParker, Quentin A.-
dc.contributor.authorReid, Warren A.-
dc.contributor.authorSeabroke, George M.-
dc.contributor.authorSharma, Sanjib-
dc.contributor.authorSiebert, Arnaud-
dc.contributor.authorSiviero, Alessandro-
dc.contributor.authorSteinmetz, Matthias-
dc.contributor.authorWatson, Fred G.-
dc.contributor.authorWilliams, Mary E K-
dc.date.accessioned2015-03-23T02:31:14Z-
dc.date.available2015-03-23T02:31:14Z-
dc.date.issued2014-
dc.identifier.citationScience, 2014, v. 345, n. 6198, p. 791-795-
dc.identifier.issn0036-8075-
dc.identifier.urihttp://hdl.handle.net/10722/209035-
dc.description.abstractThe diffuse interstellar bands (DIBs) are absorption lines observed in visual and near-infrared spectra of stars. Understanding their origin in the interstellar medium is one of the oldest problems in astronomical spectroscopy, as DIBs have been known since 1922. In a completely new approach to understanding DIBs, we combined information from nearly 500,000 stellar spectra obtained by the massive spectroscopic survey RAVE (Radial Velocity Experiment) to produce the first pseudo-three-dimensional map of the strength of the DIB at 8620 angstroms covering the nearest 3 kiloparsecs from the Sun, and show that it follows our independently constructed spatial distribution of extinction by interstellar dust along the Galactic plane. Despite having a similar distribution in the Galactic plane, the DIB 8620 carrier has a significantly larger vertical scale height than the dust. Even if one DIB may not represent the general DIB population, our observations outline the future direction of DIB research.-
dc.languageeng-
dc.relation.ispartofScience-
dc.titlePseudo-three-dimensional maps of the diffuse interstellar band at 862 nm-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1126/science.1253171-
dc.identifier.scopuseid_2-s2.0-84906095512-
dc.identifier.volume345-
dc.identifier.issue6198-
dc.identifier.spage791-
dc.identifier.epage795-
dc.identifier.eissn1095-9203-

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