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dc.contributor.authorBen Bekhti, N.*
dc.contributor.authorFlöer, L.*
dc.contributor.authorKeller, R.*
dc.contributor.authorKerp, J.*
dc.contributor.authorLenz, D.*
dc.contributor.authorWinkel, B.*
dc.contributor.authorBailin, J.*
dc.contributor.authorCalabretta, M. R.*
dc.contributor.authorDedes, L.*
dc.contributor.authorFord, H. A.*
dc.contributor.authorGibson, B. K.*
dc.contributor.authorHaud, U.*
dc.contributor.authorJanowiecki, S.*
dc.contributor.authorKalberla, P. M. W.*
dc.contributor.authorLockman, F. J.*
dc.contributor.authorMcClure-Griffiths, N. M.*
dc.contributor.authorMurphy, T.*
dc.contributor.authorNakanishi, H.*
dc.contributor.authorPisano, D. J.*
dc.contributor.authorStaveley-Smith, L.*
dc.date.accessioned2017-03-10T01:13:47Z
dc.date.available2017-03-10T01:13:47Z
dc.date.issued2016-10-20
dc.identifier.citationHI4PI: a full-sky H i survey based on EBHIS and GASS 2016, 594:A116 Astronomy & Astrophysicsen
dc.identifier.issn0004-6361
dc.identifier.issn1432-0746
dc.identifier.doi10.1051/0004-6361/201629178
dc.identifier.urihttp://hdl.handle.net/10150/622791
dc.description.abstractContext. Measurement of the Galactic neutral atomic hydrogen (H I) column density, NH I, and brightness temperatures, T-B, is of high scientific value for a broad range of astrophysical disciplines. In the past two decades, one of the most-used legacy H I datasets has been the Leiden/Argentine/Bonn Survey (LAB). Aims. We release the H I 4 pi survey (HI4PI), an all-sky database of Galactic H I, which supersedes the LAB survey. Methods. The HI4PI survey is based on data from the recently completed first coverage of the Effelsberg-Bonn H I Survey (EBHIS) and from the third revision of the Galactic All-Sky Survey (GASS). EBHIS and GASS share similar angular resolution and match well in sensitivity. Combined, they are ideally suited to be a successor to LAB. Results. The new HI4PI survey outperforms the LAB in angular resolution (theta(FWHM) = 16'.2) and sensitivity (sigma(rms) = 43 mK). Moreover, it has full spatial sampling and thus overcomes a major drawback of LAB, which severely undersamples the sky. We publish all-sky column density maps of the neutral atomic hydrogen in the Milky Way, along with full spectroscopic data, in several map projections including HEALPix.
dc.description.sponsorshipDeutsche Forschungsgemeinschaft (DFG) [KA1265/5-1, KA1265/5-2, KE757/71, KE757/7-2, KE757/7-3, KE757/11-1.]; International Max Planck Research School for Astronomy and Astrophysics at the Universities of Bonn and Cologne (IMPRS Bonn/Cologne); Estonian Research Council [IUT26-2]; European Regional Development Fund [TK133]; Australian Research Council Future Fellowship [FT150100024]; NSF CAREER grant [AST-1149491]en
dc.language.isoenen
dc.publisherEDP SCIENCES S Aen
dc.relation.urlhttp://www.aanda.org/10.1051/0004-6361/201629178en
dc.rights© ESO, 2016en
dc.subjectsurveysen
dc.subjectISM: atomsen
dc.subjecttechniques: spectroscopicen
dc.titleHI4PI: a full-sky H i survey based on EBHIS and GASSen
dc.typeArticleen
dc.contributor.departmentUniv Arizona, Steward Observen
dc.identifier.journalAstronomy & Astrophysicsen
dc.description.noteOpen access journal.en
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en
dc.eprint.versionFinal published versionen
refterms.dateFOA2018-05-25T17:22:05Z
html.description.abstractContext. Measurement of the Galactic neutral atomic hydrogen (H I) column density, NH I, and brightness temperatures, T-B, is of high scientific value for a broad range of astrophysical disciplines. In the past two decades, one of the most-used legacy H I datasets has been the Leiden/Argentine/Bonn Survey (LAB). Aims. We release the H I 4 pi survey (HI4PI), an all-sky database of Galactic H I, which supersedes the LAB survey. Methods. The HI4PI survey is based on data from the recently completed first coverage of the Effelsberg-Bonn H I Survey (EBHIS) and from the third revision of the Galactic All-Sky Survey (GASS). EBHIS and GASS share similar angular resolution and match well in sensitivity. Combined, they are ideally suited to be a successor to LAB. Results. The new HI4PI survey outperforms the LAB in angular resolution (theta(FWHM) = 16'.2) and sensitivity (sigma(rms) = 43 mK). Moreover, it has full spatial sampling and thus overcomes a major drawback of LAB, which severely undersamples the sky. We publish all-sky column density maps of the neutral atomic hydrogen in the Milky Way, along with full spectroscopic data, in several map projections including HEALPix.


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