Gaia16alq type Ia SN observed during its maximum
ATel #9100; Carrasco, J. M. (Institut de Ciencies del Cosmos-University of Barcelona); Burgaz, U. (Ege University); Kolaczkovski, Z., Mikolajczyk, P. (Instytut Astronomiczny Uniwersytetu Wroclawskiego); Wiersema, K. (University of Leicester); Jordi, C. (Institut de Ciencies del Cosmos-University of Barcelona); Vilardell, F. (Institut d'Estudis Espacials de Catalunya)
on 30 May 2016; 14:37 UT
Credential Certification: Josep Manel Carrasco MartÃÂnez (carrasco@am.ub.es)
Subjects: Optical, Supernovae, Transient
We provide fitting of the lightcurve observed for Gaia16alq type Ia SN (see ATEL#8991) including observations obtained during its peak in four passbands (BVRI).
Our observations were obtained from three different observatories: Joan Oró Telescope at Observatori del Montsec (Sant Esteve de la Sarga, Spain), Bialkow Observatory (Wroclaw Astronomical Institute,Polland) and Leicester Telescope.
- Obtained parameters from SNooPy code using max_model with dm15 option (EBV and EBV2 models were also tested but best results were obtained with max_model). SnooPy code accounts for the Milky Way E(B-V) colour excess based on the coordinates of the source.
- Lightcurve fitting can be seen in this webpage
- Obtained parameters from SNooPy
DM = 34.689 +/- 0.036
EBVhost = 0.241 +/- 0.016
dm15 = 0.915 +/- 0.008
Tmax = 57508.950 +/- 0.067
Rmax = 16.111 +/- 0.003
Imax = 16.522 +/- 0.007
Vmax = 15.818 +/- 0.005
Bmax = 16.109 +/- 0.004
- Absolute Magnitudes calculated from m - M = DM
Bmax = -18.58 +/- (0.004+/-0.036)
Vmax = -18.871 +/- (0.005+/-0.036)
Imax = -18.167 +/- (0.007+/-0.036)
Rmax = -18.578 +/- (0.003+/-0.036)
errors come from both DM and individual m errors found by SNooPy
These days Gaia16alq is having the 2nd peak on the I-band and all other bands such as the small drop and increase on R are following the template smoothly. Future fittings adding more observations could enhance the derivation of these preliminary analysis.
Observatori Astronomic del Montsec
