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Table 5
Main parameters of the BB fit to the observed SED evolution of SN 2015da.
| JD | Phase | Luminosity (Hα/Hβ) | EW (Hα/Hβ) | FWHM(Hα/Hβ) |
|---|---|---|---|---|
| (d) | (erg s−1) | (Å) | (km s−1) | |
| 2457039.37 | + 8 | 5.78/3.62 | 370/110 | 1425/1970 |
| 2457041.37 | + 10 | 6.45/3.43 | 385/80 | 1630/2400 |
| 2457042.38 | + 11 | 6.11/3.43 | 320/85 | 1575/2025 |
| 2457049.99 | + 19 | 7.55/4.15 | 240/85 | 1350/1525 |
| 2457050.37 | + 19 | 6.55/4.06 | 240/85 | 1410/2100 |
| 2457053.67 | + 23 | 7.00/3.93 | 275/75 | 1335/2060 |
| 2457057.34 | + 26 | 6.60/2.53 | 230/65 | 1415/1960 |
| 2457063.55 | + 33 | 5.60/3.27 | 175/55 | 1275/2370 |
| 2457067.35 | + 36 | 5.45/2.94 | 165/50 | 1440/2235 |
| 2457077.16 | + 46 | 3.95/1.27 | 105/20 | 540/1060(a) |
| 2457093.52 | + 63 | 3.05/1.32 | 90/20 | 1135/1930 |
| 2457109.59 | + 79 | 3.80/0.92 | 90/15 | 1450/1980 |
| 2457119.83 | + 89 | 3.15/1.20 | 65/20 | 1590/2295 |
| 2457124.48 | + 94 | 3.80/0.94 | 85/15 | 2110/2230 |
| 2457141.62 | + 111 | 5.20/1.58 | 1450/25 | 3120/3045 |
| 2457168.64 | + 138 | 8.75/2.89 | 265/50 | 3770/3230 |
| 2457185.64 | + 155 | 10.85/3.15 | 370/65 | 3710/3165 |
| 2457224.39 | + 193 | 11.05/3.00 | 505/80 | 3480/3020 |
| 2457224.43 | + 193 | 12.80/2.40 | 655/85 | 3820/2530 |
| 2457241.32 | + 210 | 13.75/3.10 | 715/105 | 3700/2890 |
| 2457259.39 | + 228 | 13.15/3.10 | 825/80 | 3560/3010 |
| 2457273.30 | + 242 | 13.85/2.95 | 880/105 | 3700/3030 |
| 2457359.68 | + 329 | 12.00/2.10 | 1250/115 | 3470/2560 |
| 2457406.02 | + 375 | 12.35/2.00 | 1040/110 | 3200/2230 |
| 2457465.60 | + 435 | 3.60/0.50 | 1940/145 | 2990/2350 |
| 2457535.90 | + 505 | 6.60/1.20 | 1190/85 | 2600/2300 |
| 2457562.44 | + 531 | 1.35/0.30 | 1095/160 | 2430/3060 |
| 2457603.68 | + 573 | 6.10/0.90 | 1550/100 | 2370/2130 |
| 2457621.38 | + 590 | 6.00/-(a) | 1735/-(a) | 2335/-(a) |
| 2457626.64 | + 596 | 4.25/0.70 | 1235/80 | 2285/2180 |
| 2457636.66 | + 606 | 7.70/0.45 | 2265/110 | 2295/2430 |
| 2457644.36 | + 613 | 3.20/0.35 | 1150/65 | 2205/2780 |
| 2457728.75 | + 698 | 2.25/0.40 | 945/75 | 2080/2625 |
| 2457736.74 | + 706 | 1.95/0.30 | 1190/60 | 2130/2940 |
| 2457780.98 | + 750 | 2.70/0.35 | 1135/80 | 2110/2150 |
| 2457806.73 | + 776 | 1.85/0.40 | 1145/75 | 2030/2715 |
| 2457827.57 | + 797 | 1.90/0.35 | 1160/65 | 1995/2950 |
| 2457841.40 | + 810 | 1.80/0.35 | 1160/75 | 2010/2365 |
| 2457863.55 | + 833 | 2.10/0.40 | 1490/110 | 2040/2315 |
| 2457867.59 | + 837 | 1.60/0.30 | 1070/80 | 2000/2445 |
| 2457875.54 | + 845 | 1.65/0.30 | 945/70 | 2010/2940 |
| 2457899.58 | + 869 | 1.90/0.30 | 1125/85 | 1965/2765 |
| 2457914.52 | + 884 | 1.30/0.25 | 940/50 | 2030/2620 |
| 2457929.81 | + 899 | 2.65/0.25 | 1360/60 | 2070/2250 |
| 2457951.44 | + 920 | 2.00/0.35 | 1155/60 | 2030/2235 |
| 2457961.69 | + 931 | 2.10/0.40 | 1285/50 | 2000/2605 |
| 2457968.40 | + 937 | 1.50/0.25 | 1300/65 | 2085/3135 |
| 2457977.41 | + 946 | 1.35/0.30 | 1030/50 | 2020/2330 |
| 2458121.74 | + 1091 | 1.75/-(a) | 1025/-(a) | 2140/-(a) |
| 2458489.12 | + 1458 | 1.45/0.50 | 1755/95 | 2340/2255 |
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