J/A+A/606/A76ivo://CDS.VizieR/J/A+A/606/A76doi:10.26093/cds/vizier.36060076CDSCox N.L.J.Cami J.Farhang A.Smoker J.Monreal-ibero A.Lallement R.,Sarre P.J.Marshall C.C.M.Smith K.T.Evans C.J.Royer P.Linnartz H.,Cordiner M.A.Joblin C.van Loon J.T.Foing B.H.Bhatt N.H.Bron E.,Elyajouri M.de Koter A.Ehrenfreund P.Javadi A.Kaper L.,Khosroshadi H.G.Laverick M.Le Petit F.Mulas G.Roueff E.Salama F.,Spaans M.2018-03-15T09:29:26Z2018-02-19T15:41:05ZCDS support team

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

cds-question@unistra.frsurveysextinctioninterstellar-mediumThe carriers of the diffuse interstellar bands (DIBs) are largely unidentified molecules ubiquitously present in the interstellar medium (ISM). After decades of study, two strong and possibly three weak near-infrared DIBs have recently been attributed to the C^+^_60_ fullerene based on observational and laboratory measurements. There is great promise for the identification of the over 400 other known DIBs, as this result could provide chemical hints towards other possible carriers. In an effort to systematically study the properties of the DIB carriers, we have initiated a new large-scale observational survey: the ESO Diffuse Interstellar Bands Large Exploration Survey (EDIBLES). The main objective is to build on and extend existing DIB surveys to make a major step forward in characterising the physical and chemical conditions for a statistically significant sample of interstellar lines-of-sight, with the goal to reverse-engineer key molecular properties of the DIB carriers. EDIBLES is a filler Large Programme using the Ultraviolet and Visual Echelle Spectrograph at the Very Large Telescope at Paranal, Chile. It is designed to provide an observationally unbiased view of the presence and behaviour of the DIBs towards early-spectral-type stars whose lines-of-sight probe the diffuse-to-translucent ISM. Such a complete dataset will provide a deep census of the atomic and molecular content, physical conditions, chemical abundances and elemental depletion levels for each sightline. Achieving these goals requires a homogeneous set of high-quality data in terms of resolution (R~70000-100000), sensitivity (S/N up to 1000 per resolution element), and spectral coverage (305-1042nm), as well as a large sample size (100+ sightlines). In this first paper the goals, objectives and methodology of the EDIBLES programme are described and an initial assessment of the data is provided.2017A&A...606A..76Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/606/A76CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/606/A76https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/606/A76http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/606/A76https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/606/A76https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/606/A76http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/606/A76GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/606/A76/tablea2 (Observations planned to complete the EDIBLES sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/606/A76/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/606/A76/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/606/A76/tablea2?GETtext/xml+votable180.050000true83.790833-5.4648060.005555555555555556Cone search capability for table J/A+A/606/A76/tablea1 (Targets observed for EDIBLES)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/606/A76/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/606/A76/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/606/A76/tablea1?GETtext/xml+votable180.050000true55.59458333.9650280.0055555555555555566/405 1060 1198 1539 1550 12972 14356 21401 21439 21635 21638 21647 21656 22040 22112 22845 22854-22855 22862 22884 23717 23780 23851 23979 24340 24370 24463 28890 29089 29129 29154 29159 29162 29460 29463 29467 29513 29522 29621 29893 30709 30718 30818 31756 31904 32095 37231 37333 37593 37732 37754 37871 37877 37893 37898 37930 38016 38024 39249 39281 39327 39733 39907 41103 41510 41598 41630 41651 41653 41692 41750 41924 42080 42213-42214 42236 42366 42368 42394 42408 42416 42458 42464 42483 42791 42959 42977 42983 42988 42994 43033 43040 44360 44366 44378 45105 47656https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/606/A76?format=asciidefaultJ/A+A/606/A76/tablea2Observations planned to complete the EDIBLES samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainSpTypeMK spectral typesrc.spTypecharr_SpTypeReference for spectral type (1)meta.ref;pos.framecharE(B-V)? Interstellar reddenning (2)magphot.color.excessfloatnullableRV? Total-to-selective extinction ratiophys.absorptionfloatnullableAV? Visual extinctionmagphys.absorption;em.opt.Vfloatnullabler_AVReference for AV (1)meta.ref;pos.framecharlogNHI? HI column density (3)log(cm**-2)phys.columnDensityfloatnullablelogNH2? H_2_ column density (3)log(cm**-2)phys.columnDensityfloatnullablefH2? Molecular hydrogen fractionphys.mass;arith.ratiofloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/606/A76/tablea1Targets observed for EDIBLESfH2? Molecular hydrogen fractionphys.mass;arith.ratiofloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainSpTypeMK spectral typesrc.spTypecharr_SpTypeReference for spectral type (1)meta.ref;pos.framecharE(B-V)? Interstellar reddenning (2)magphot.color.excessfloatnullableRV? Total-to-selective extinction ratiophys.absorptionfloatnullableAV? Visual extinctionmagphys.absorption;em.opt.Vfloatnullabler_AVReference for AV (1)meta.ref;pos.framecharlogNHI? HI column density (3)log(cm**-2)phys.columnDensityfloatnullablelogNH2? H_2_ column density (3)log(cm**-2)phys.columnDensityfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar