Table 3
Relevant parameters for SN 2011fe derived from this work.
| Parameter | Value |
|
|
|
| Photometry | |
| x 1 | −0.206 ± 0.071 |
| Color | −0.066 ± 0.021 |
| Stretcha | 0.969 ± 0.010 |
| Δm15 B b | 1.103 ± 0.035 |
| tmax U | 55 813.13 ± 0.06 |
| tmax B | 55 814.51 ± 0.06 |
| tmax V | 55 816.25 ± 0.06 |
| tmax R | 55 816.06 ± 0.06 |
| tmax I | 55 812.55 ± 0.06 |
| Umax/UmaxBc | 9.49 ± 0.02/9.52 ± 0.02 mag |
| B max | 9.94 ± 0.01 mag |
| Vmax/VmaxB | 9.98 ± 0.02/9.99 ± 0.01 mag |
| Rmax/RmaxB | 10.02 ± 0.04/10.04 ± 0.03 mag |
| Imax/ImaxB | 10.30 ± 0.11/10.32 ± 0.09 mag |
| Mmax U | −19.55 ± 0.19 mag |
| Mmax B | −19.10 ± 0.19 mag |
| Mmax V | −19.06 ± 0.19 mag |
| Mmax R | −19.02 ± 0.19 mag |
| Mmax I | −18.74 ± 0.22 mag |
|
0.026 ± 0.036 |
| E(B − V)host spectro | 0.014 ± 0.003 |
| t0 bolometricd | 55 796.81 ± 0.13 |
| t0 Vd | 55 796.68 ± 0.12 |
| τr bolometric | 16.58 ± 0.14 d |
| τr B | 17.70 ± 0.14 d |
|
(1.17 ± 0.04) × 1043 ergs s-1 |
|
(0.44 ± 0.08) × (1.2/α) M⊙ |
|
|
|
| Spectroscopy | |
| ℛSi | 0.26 |
| ℛCa | 1.27 |
| ℛSiS | 1.32 |
| ℛ642/443 | 0.73 |
| pEW (Ca ii H&K) | 97.62 ± 11.35 Å |
| pEW (Si iiλ4131) | 15.33 ± 0.07 Å |
| pEW (Si iiλ5972) | 17.21 ± 2.19 Å |
| pEW (Si iiλ6355) | 96.67 ± 0.53 Å |
| pEW (C iiλ6580) | 0.56 ± 0.17 Å |
 (Si iiλ6355) |
59.6 ± 3.2 km s-1 d-1 |
Notes.All dates are MJD. Magnitudes are on the “standard” SALT2 magnitude system, allowing direct comparison with the literature. Absolute magnitudes are computed using the distance modulus to M101 given by Shappee & Stanek (2011). All spectral flux ratios and pseudo-equivalent widths are derived at maximum light. The photon noise derived uncertainties for the flux ratios are below the percent level.
Derived using Eq. (6) of Guy et al. (2010).
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