type Ia Supernova ASNOS sample

DOI

Type 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.

Cone 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)

Identifier
DOI http://doi.org/10.26093/cds/vizier/bc-p2/ldei
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/706/A348
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/706/A348
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/706/A348
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/A+A/706/A348
Provenance
Creator Phan 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.
Publisher CDS
Publication Year 2026
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy