Open Access
Table 1.
SALT2 fit parameters of the SN Ia-SN Ia pairs in this study for the spec and photo-spec subsamples. Details for the light curves and redshifts are provided in Smith et al. in prep.
| SN1 | SN2 | Ang. Sep. (“) | z(a) | t0-A (days) | t0-B (days) | mB-A | mB-B | x1-A | x1-B | c-A | c-B | log (Mass) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M⊙ | ||||||||||||
| Spec | ||||||||||||
| ZTF20abmarcv1 | ZTF20abmarcv2 | 0.0 | 0.1144 | 59056.83 | 59502.16 | 18.975 +/− 0.044 | 19.275 +/− 0.069 | 0.622 +/− 0.271 | 0.123 +/− 0.529 | −0.002 +/− 0.041 | 0.053 +/− 0.041 | 9.44 |
| ZTF18abnucig | ZTF20achyvas | 1.7 | 0.09 | 58359.48 | 59133.76 | 18.802 +/− 0.043 | 18.682 +/− 0.038 | 0.339 +/− 0.209 | 0.887 +/− 0.304 | −0.075 +/− 0.036 | −0.099 +/− 0.036 | 10.99 |
| ZTF22abveefy | ZTF21abnfdqg | 2.1 | 0.038 | 59910.8 | 59419.55 | 17.27 +/− 0.068 | 18.259 +/− 0.053 | −2.802 +/− 0.42 | −3.089 +/− 0.312 | −0.099 +/− 0.069 | 0.215 +/− 0.069 | 10.63 |
| ZTF20acehyxd | ZTF21abouuow | 2.8 | 0.035 | 59130.63 | 59432.49 | 18.149 +/− 0.05 | 16.5 +/− 0.037 | 0.285 +/− 0.238 | 0.677 +/− 0.09 | 0.44 +/− 0.039 | −0.004 +/− 0.039 | 10.03 |
| ZTF20aaeszsm | ZTF20abujoya | 2.9 | 0.07 | 58868.63 | 59080.22 | 18.564 +/− 0.039 | 18.614 +/− 0.048 | 0.136 +/− 0.312 | −1.206 +/− 0.274 | 0.066 +/− 0.035 | −0.012 +/− 0.035 | 11.25 |
| ZTF20abptxls | ZTF21aabpszb | 3.3 | 0.0163 | 59075.82 | 59237.38 | 15.197 +/− 0.036 | 15.235 +/− 0.269 | 0.776 +/− 0.086 | −1.929 +/− 2.026 | 0.085 +/− 0.031 | −0.12 +/− 0.031 | 9.82 |
| ZTF20aaxicpu | ZTF21abasxdp | 4.9 | 0.0721 | 58979.93 | 59356.08 | 18.647 +/− 0.033 | 18.583 +/− 0.034 | −1.575 +/− 0.096 | −1.478 +/− 0.098 | −0.052 +/− 0.029 | −0.068 +/− 0.029 | 11.0 |
| ZTF19accobqx | ZTF19acnwelq | 8.7 | 0.09 | 58773.48 | 58803.06 | 18.584 +/− 0.039 | 18.529 +/− 0.049 | 1.19 +/− 0.386 | 0.159 +/− 0.462 | −0.032 +/− 0.035 | −0.075 +/− 0.035 | 9.94 |
| ZTF20abatows | ZTF20abcawtk | 9.7 | 0.0945 | 59002.7 | 59007.88 | 19.113 +/− 0.033 | 19.074 +/− 0.033 | 0.42 +/− 0.093 | −1.087 +/− 0.089 | 0.022 +/− 0.026 | −0.089 +/− 0.026 | 10.81 |
| ZTF20abydkrl | ZTF20acpmgdz | 30.9 | 0.0311 | 59107.46 | 59177.97 | 16.569 +/− 0.038 | 16.466 +/− 0.033 | −0.556 +/− 0.067 | −0.315 +/− 0.041 | 0.045 +/− 0.031 | 0.042 +/− 0.031 | 11.37 |
| ZTF19abjpkdz | ZTF19aculypc | 45.4 | 0.0564 | 58699.52 | 58822.77 | 18.901 +/− 0.037 | 17.456 +/− 0.08 | −3.01 +/− 0.222 | −0.847 +/− 0.211 | 0.106 +/− 0.032 | −0.11 +/− 0.032 | 11.56 |
| ZTF18abdmgab | ZTF20abqefja | 53.6 | 0.0802 | 58311.63 | 59077.04 | 19.386 +/− 0.034 | 18.658 +/− 0.033 | −2.225 +/− 0.14 | 1.312 +/− 0.106 | 0.085 +/− 0.029 | 0.099 +/− 0.029 | 10.92 |
| Photo-Spec | ||||||||||||
| ZTF19acbzdvp1 | ZTF19acbzdvp2 | 0.0 | 0.103 | 58769.22 | 59528.23 | 19.401 +/− 0.039 | 19.114 +/− 0.041 | −0.309 +/− 0.207 | −1.086 +/− 0.446 | 0.098 +/− 0.032 | −0.008 +/− 0.032 | 10.05 |
| ZTF19aambfxc1 | ZTF19aambfxc2 | 0.0 | 0.0541 | 58684.63 | 58889.26 | 19.88 +/− 0.062 | 17.531 +/− 0.035 | 0.424 +/− 0.273 | 0.214 +/− 0.13 | 0.734 +/− 0.046 | −0.026 +/− 0.046 | 10.33 |
| ZTF19abaeyln | ZTF20abeadnl | 2.3 | 0.0852 | 58666.73 | 59001.82 | 18.582 +/− 0.041 | 19.484 +/− 0.051 | 0.39 +/− 0.284 | −1.719 +/− 0.314 | 0.113 +/− 0.034 | 0.108 +/− 0.034 | 10.6 |
| ZTF20abazgfi | ZTF19acgemxh | 2.5 | 0.09 | 58999.91 | 58780.81 | 18.848 +/− 0.038 | 19.929 +/− 0.056 | 0.158 +/− 0.158 | −0.563 +/− 0.779 | 0.032 +/− 0.033 | 0.348 +/− 0.033 | 10.36 |
| ZTF20abgaovd | ZTF19abtuhqa | 2.7 | 0.1 | 59027.72 | 58731.67 | 18.503 +/− 0.056 | 18.286 +/− 0.045 | −0.981 +/− 0.325 | 0.232 +/− 0.407 | −0.008 +/− 0.047 | 0.004 +/− 0.047 | 10.66 |
| ZTF18aakaljn | ZTF19acdtmwh | 3.0 | 0.0699 | 58233.32 | 58774.23 | 18.35 +/− 0.051 | 18.996 +/− 0.066 | 1.553 +/− 0.391 | −0.455 +/− 0.398 | 0.122 +/− 0.047 | 0.207 +/− 0.047 | 10.94 |
| ZTF22aaksdvi | ZTF21acowrme | 7.9 | 0.0821 | 59734.75 | 59539.26 | 18.306 +/− 0.034 | 18.674 +/− 0.063 | −0.306 +/− 0.129 | 1.138 +/− 0.964 | −0.127 +/− 0.029 | −0.057 +/− 0.029 | 10.84 |
| ZTF18abuiknd | ZTF20acqpzbo | 8.6 | 0.104 | 58383.57 | 59181.25 | 19.085 +/− 0.036 | 18.96 +/− 0.047 | 0.401 +/− 0.281 | 0.854 +/− 0.33 | −0.044 +/− 0.033 | −0.016 +/− 0.033 | 10.75 |
| ZTF20abgfvav | ZTF18abktzep | 9.1 | 0.095 | 59032.95 | 58339.52 | 19.116 +/− 0.037 | 19.903 +/− 0.057 | 0.027 +/− 0.191 | 0.048 +/− 0.609 | 0.025 +/− 0.032 | 0.227 +/− 0.032 | 9.59 |
| ZTF19aatzlmw | ZTF20aaznsyq | 11.0 | 0.073 | 58616.23 | 58986.03 | 18.354 +/− 0.078 | 18.317 +/− 0.045 | −0.131 +/− 0.364 | −0.426 +/− 0.175 | −0.037 +/− 0.054 | −0.033 +/− 0.054 | 10.73 |
| ZTF21aajfpwk | ZTF19aacxwfb | 17.8 | 0.0791 | 59266.7 | 58503.58 | 18.99 +/− 0.032 | 18.858 +/− 0.039 | −2.174 +/− 0.111 | −2.049 +/− 0.204 | −0.011 +/− 0.027 | −0.053 +/− 0.027 | 11.38 |
| ZTF18aaqcozd | ZTF19aaloezs | 21.1 | 0.073 | 58253.45 | 58554.15 | 18.451 +/− 0.033 | 18.793 +/− 0.034 | −1.305 +/− 0.111 | −2.129 +/− 0.086 | −0.108 +/− 0.028 | −0.003 +/− 0.028 | 10.87 |
| ZTF20abrgyhd | ZTF19aatvlbw | 30.1 | 0.066 | 59082.3 | 58615.65 | 18.447 +/− 0.033 | 19.067 +/− 0.045 | −1.791 +/− 0.107 | −2.224 +/- 0.222 | -0.024 +/- 0.029 | 0.148 +/- 0.029 | 11.1 |
Notes.
(a)
The source of the redshift and the overview of the data is provided in S24 and (Rigault et al. 2025).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.