Hatena::Groupkanatatmp

KANATA ObsLog

2010-02-21

[] Spectroscopy of Type Ia SN 2010Y

f:id:kanataobslog:20100222041422p:image

We performed the spectroscopic observations of Type Ia SN 2010Y. Our spectrum shows the absorptions feature are broadened because of the expansion velocity. We confirm that the line profile is resemble of that of a typical SN Ia. The deep SiII absorption at 5800A indicates that SN 2010Y is categorized to slightly intrinsic dim object. This characteristic is corresponding to that the maximum absolute magnitude is derived as -18.1 mag from the our light curve. We cannot confirm the any features of CII 6580, which was seen at a week before maximum (reported in CBET 2168).