J/A+A/585/A41ivo://CDS.VizieR/J/A+A/585/A41doi:10.26093/cds/vizier.35850041CDSWinkel B.Kerp J.Floeer L.Kalberla P.M.W.Ben Bekhti N.Keller R.,Lenz D2015-12-18T09:34:46Z2015-12-15T07:56:57ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsurveysmilky-way-galaxyinterstellar-mediumh-i-line-emissionspectroscopyThe Effelsberg-Bonn HI Survey (EBHIS) is a new 21-cm survey performed with the 100-m telescope at Effelsberg. It covers the whole northern sky out to a redshift of z~0.07 and comprises HI line emission from the Milky Way and the Local Volume. We aim to substitute the northern-hemisphere part of the Leiden/Argentine/Bonn Milky Way HI survey (LAB) with this first EBHIS data release, which presents the HI gas in the Milky Way regime. The use of a seven-beam L-band array made it feasible to perform this all-sky survey with a 100-m class telescope in a reasonable amount of observing time. State-of-the-art fast-Fourier-transform spectrometers provide the necessary data read-out speed, dynamic range, and spectral resolution to apply software radio-frequency interference mitigation. EBHIS is corrected for stray radiation and employs frequency-dependent flux-density calibration and sophisticated baseline-removal techniques to ensure the highest possible data quality. Detailed analyses of the resulting data products show that EBHIS is not only outperforming LAB in terms of sensitivity and angular resolution, but also matches the intensity-scale of LAB extremely well, allowing EBHIS to be used as a drop-in replacement for LAB. Data products are made available to the public in a variety of forms. Most important, we provide a properly gridded Milky Way HI column density map in HEALPix representation. To maximize the usefulness of EBHIS data, we estimate uncertainties in the HI column density and brightness temperature distributions, accounting for systematic effects.2016A&A...585A..41Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/585/A41CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/585/A41https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/585/A41http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/585/A41https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/585/A41https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/585/A41http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/585/A41GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/585/A41/hpxspec (List of HPX-grid FITS binary tables)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/585/A41/hpxspec?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/585/A41/hpxspec?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/585/A41/hpxspec?GETtext/xml+votable180.050000true205.977628.96460.005555555555555556Cone search capability for table J/A+A/585/A41/cubes (List of FITS data cubes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/585/A41/cubes?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/585/A41/cubes?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/585/A41/cubes?GETtext/xml+votable180.050000true10.00.00.0055555555555555566/106 421 434 656 667 783 1154 1331 1343 1442 1599 1633 1678 1871 2025 2159 2367 2373 2450 2550 2619 2623 2669 3023 3030 3164 3279 3283 3290 3348 3415 3608 3721 3844 3954 3956 3998 4013 4020 4023 4033 4111 4455 4486 4698 4719 4721 5063 5201 5299 5431 5439 5584 5695 5729 5931 6095 6109 6121 6201 6463 6477 6546 6719 6737 6869 7103 7126 7220 7375 7386 7395 7460 7567 7695 7720 8030 8045 8092 8110 8113 8130 8136 8389 8530 8613 8626 8813 8859 9042 9432 9535 9562 9634 9791 9870 9916 10117 10199 10217 10337 10559 10568 10642 10808 10811 10815 11060 11215 11222 11471 11475 11482 11540 11674 11796 11800 12022 12126 12146 12190 12205-12206 12225 12228 12443 12553 12647 12793 12890 12913 12971 13184 13335 13623 13626 13631 13819 13887 13921 13928 14287 14313 14566 14655 14667 14669 14911 14929 15147 15295 15318 15525 15567 15578 15587 15617 15652 15820 15912 15992 16222 16237 16248 16302 16305 16312 16322 16849 17530 17774 17817 17964 18069 18320 18747 18794 19018 19046 19302 19509 19822 19863 20050 20075 20335 20964 21403 21630 21850 22102 22114 22186 22352 22463 22740 22953 23089 23205 23379 23480 23589 23900 23971 24236 24292 24320 24444 24572 25182 25541 25759 25954 26009 26261 26339 26442 26726 26986 27080 27238 27258 27623 27835 27933 28055 28267 28431 29669 29791 29824 30042 30294 30318 30378 30530 30812 30859 31145 31397 31437 31511 31896 32039 32092 32428 32461 32512 32612 32764 36661 40441 40856 44906 49136https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/585/A41?format=asciiRadioOpticaldefaultJ/A+A/585/A41/hpxspecList of HPX-grid FITS binary tablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latdoubleRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainNumRowsNumber of spectra in filemeta.numberintHPXidxHealPIX index (nside=4, RING scheme,0-based)meta.codeintFileNameName of the FITS file in subdirectory hpxmeta.id;meta.fitscharJ/A+A/585/A41/nhiHI column densities fits files listrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFileNameName of the fits file in subdirectory nhimeta.id;meta.fitscharTitleTitle of the filemeta.title;meta.filecharJ/A+A/585/A41/cubesList of FITS data cubesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000) of data cube centerdegpos.eq.ra;meta.mainDEJ2000Declination (J2000) of data cube centerdegpos.eq.dec;meta.mainWCSprojWCS projection codepos.cartesiancharFileNameName of the FITS file in subdirectory fitsmeta.id;meta.fitschar