报告题目: |
Recent work on SN 2014G |
报告人: |
芮黎明 |
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THCA
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报告时间: |
2016-01-07 14:00 |
报告地点: |
蒙民伟科技南楼S727 |
主办单位: |
物理系 |
简介: |
We present multi-band ultraviolet and optical light curves, as well as visual-wavelength spectroscopy of the Type II linear (IIL) supernova (SN) 2014G. We show that SN 2014G and other SNe IIL in the literature, after their linear decline phase that start after maximum, have a sharp light curve decline similar to that seen in Type II plateau (IIP) supernovae. This light curve feature has rarely been observed in other SNe IIL due to their relative rarity and the intrinsic faintness of this particular phase of the light curve.We suggest that the presence of this drop could be used as a physical parameter to distinguish between subclasses of SNe II, rather than their light curve decline rate shortly after peak. |
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