论文标题
两个剥离信封超新星SN 2015AP(IB)和SN 2016p(IC类型)的光学研究
Optical studies of two stripped envelope supernovae SN 2015ap (Type Ib) and SN 2016P (Type Ic)
论文作者
论文摘要
我们介绍了IB SN 2015AP和IC型SN 2016p的光度和光谱研究。 SN 2015AP是Bright(M $ _ {V} $ = $ - $ - $ - $ 18.04 mag)类型IB,而SN 2016P则为IC SNE类型的平均值(M $ _ {V} $ = $ = $ - $ - $ - $ 17.53 MAG)。 2015AP和2016P的降压光曲线曲线建模表明,两个SNE均由$^{56} $ ni +磁铁模型提供$^{56} $ ni Masses的0.01 m $ _ {\ odot} $的质量为0.01 m $ _ {\ odot} $和0.002 m $ $ _ $ _ $ _ {\ odot} $} $,OOSESS $ 3.55.55555555555555555555。 4.66 m $ _ {\ odot} $,旋转期P $ _ {0} $ 25.8 ms和36.5 ms和磁场B $ _ {p} $ 28.39 $ \ times $ \ times $ 10 $^{14} $ gauss和35.3 $ \ times $ \ times $ \ times $ 10 $^{14} $ gauss $ gauss。 SN 2015AP的早期光谱显示出由于FE复合物而具有“ W”功能的突出线,而其他MG II,Na I和Si II的其他线在2015AP和2016P中都存在。 Nebular相[O I]曲线表明SN 2015AP中的不对称曲线。 SN 2015AP的[O I]/[Ca II]比率和nebular光谱建模暗示祖细胞质量在12 $ -20 m $ _ {\ odot} $之间。
We present the photometric and spectroscopic studies of a Type Ib SN 2015ap and a Type Ic SN 2016P. SN 2015ap is one of the bright (M$_{V}$ = $-$18.04 mag) Type Ib while SN 2016P lies at an average value among the Type Ic SNe (M$_{V}$ = $-$17.53 mag). Bolometric light curve modelling of SNe 2015ap and 2016P indicates that both the SNe are powered by $^{56}$Ni + magnetar model with $^{56}$Ni masses of 0.01 M$_{\odot}$ and 0.002 M$_{\odot}$, ejecta masses of 3.75 M$_{\odot}$ and 4.66 M$_{\odot}$, spin period P$_{0}$ of 25.8 ms and 36.5 ms and magnetic field B$_{p}$ of 28.39 $\times$ 10$^{14}$ Gauss and 35.3 $\times$ 10$^{14}$ Gauss respectively. The early spectra of SN 2015ap shows prominent lines of He with a "W" feature due to Fe complexes while other lines of Mg II, Na I and Si II are present in both SNe 2015ap and 2016P. Nebular phase [O I] profile indicates an asymmetric profile in SN 2015ap. The [O I]/[Ca II] ratio and nebular spectral modelling of SN 2015ap hints towards a progenitor mass between 12 $-$ 20 M$_{\odot}$.