This repository hosts science images associated with the ASNOS data release.
ASNOS is a photometric dataset of 41 Type Ia supernovae combining:
- Optical photometry (BVRI + YJH filters) from the ANDICAM dual-channel imager on the 1.3-m SMARTS telescope at CTIO — 1,482 epochs
- Near-infrared photometry (JHK filters) from SOFI on the 3.58-m NTT at La Silla — 125 epochs
- Supplementary optical forced photometry from ZTF and ATLAS
The sample spans redshifts z < 0.085 and includes 29 normal SNe Ia, eight 1991T-like objects, and four peculiar subtypes. The paper describes the full pipeline from sample selection and data reduction through host-galaxy SED construction and light-curve fitting with SALT3-NIR, SNooPy, and BayeSN. A companion paper will present the cosmological analysis.
The science images (FITS files) are archived on Zenodo:
Phan, K., Galbany, L., Müller-Bravo, T. E., et al. (2026).
ASNOS science images [Data set]. Zenodo.
https://doi.org/10.5281/zenodo.18696233
Phan, K., Galbany, L., Müller-Bravo, T. E., et al. (2026)
The ANDICAM-SOFI Near-infrared and Optical type Ia Supernova (ASNOS) sample:
Description and data release
Astronomy & Astrophysics, 706, A348
| Resource | Link |
|---|---|
| arXiv preprint | arXiv:2512.03695 |
| Published article (A&A) | doi:10.1051/0004-6361/202556113 |
| NASA ADS | 2026A&A...706A.348P |
| Zenodo data release | doi:10.5281/zenodo.18696233 |
If you use these data, please cite the data release paper and the Zenodo record:
@ARTICLE{2026A&A...706A.348P,
author = {{Phan}, Kim and {Galbany}, Llu{\'i}s and {M{\"u}ller-Bravo}, Tom{\'a}s E. and et al.},
title = "{The ANDICAM-SOFI Near-infrared and Optical type Ia Supernova (ASNOS) sample: Description and data release}",
journal = {\aap},
year = 2026,
volume = {706},
eid = {A348},
doi = {10.1051/0004-6361/202556113},
adsurl = {https://ui.adsabs.harvard.edu/abs/2026A%26A...706A.348P},
}