J/A+A/706/A348ivo://CDS.VizieR/J/A+A/706/A348doi:10.26093/cds/vizier/bc-p2/ldeiCDSPhan K.Galbany L.Muller-Bravo T.E.Bose S.Burns C.R.,Stritzinger M.D.Sorensen C.T.G.Ashall C.Castander F.J.,Jimenez Palau C.Johansson J.Anderson J.P.Chambers K..C.,Gromadzki M.Pessi P.J.Chen T.-W.2026-02-27T20:00:54Z2026-02-25T09:27:49ZCDS support team

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

cds-question@unistra.frsupernovaeinfrared-photometryvisible-astronomyType Ia supernovae (SNe Ia) provide the most robust means of measuring extragalactic distances.While most of the effort has focused on increasing the number of SNe Ia observed in the optical, near-infrared (NIR) observations remain scarce despite their advantages, that is, reduced dust extinction and a more intrinsic standard candle behavior, requiring little to no empirical corrections. Here, we present ASNOS (ANDICAM-SOFI Near-infrared and Optical type Ia Supernova), a dataset with sample size of 1,482 epochs in the BVRIYJH filters from the ANDICAM instrument on the 1.3-meter SMARTS telescope at Cerro Tololo Inter-American Observatory, along with 125 JHK epochs from the SOFI instrument on the 3.58-meter New Technology Telescope on the La Silla Observatory. Additionally, we incorporate optical forced photometry from the Zwicky Transient Facility and the Asteroid Terrestrial-impact Last Alert System. The sample comprises 41 SNe Ia in total, including 29 normal events, eight 1991T-like objects, and four peculiar subtypes, all located at redshifts z<0.085. This paper provides a detailed overview of the ASNOS sample selection, data reduction, SN photometry, host-galaxy spectral energy distribution construction,both global and local, and SN light-curve fitting using three methods: SALT3-NIR, SNooPy, and BayeSN. A companion paper will present the cosmological analysis.2026A&A...706A.348Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/706/A348CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/706/A348https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/706/A348http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/706/A348https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/706/A348https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/706/A348http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/706/A348GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/706/A348/catalog (SN types, coordinates, redshifts, host names, discovery and classification groups and number of observations in the NIR)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/706/A348/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/706/A348/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/706/A348/catalog?GETtext/xml+votable180.050000true92.41333333-33.589788890.0055555555555555566/8239 8565 8778 8792 17977 18354 18901 19315 20511 21239 21590 22342 22561 24733 25048 25577 25700 25712 25778 25834 26262 27046 28173 31661 32333 33044 35066 36276 40895 41340 41423 43714 44901 45380 46128 46645 47039 48064 48128 48545 48908https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/706/A348?format=asciiOpticalInfrareddefaultJ/A+A/706/A348/catalogSN types, coordinates, redshifts, host names, discovery and classification groups and number of observations in the NIRrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLCLight curvesmeta.ref.urlcharSNSN namemeta.id;meta.maincharTypeSN typesrc.classcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainzRedshiftsrc.redshiftdoubleHostHost namemeta.id.parentcharDiscDiscovery groupmeta.idcharClassClassfication groupsmeta.idcharNTotTotal number of observationsmeta.numberintNYNumber of ANDICAM Y observationsmeta.numberintNJNumber of ANDICAM J observationsmeta.numberintNHNumber of ANDICAM H observationsmeta.numberintNJsNumber of SOFI J observationsmeta.numberintNHsNumber of SOFI H observationsmeta.numberintNKsNumber of SOFI K observationsmeta.numberintFileNameName of the light curve file in subdirectory lcmeta.id;meta.filechar