论文标题
Lick天文台超新星搜索后续程序：70个剥离的超新星的光度法数据发布
The Lick Observatory Supernova Search follow-up program: photometry data release of 70 stripped-envelope supernovae
论文作者
论文摘要
我们从2003年至2020年之间观察到的BVRI和未过滤的70个剥离式超新星（sesne）的清晰光曲线是从Lick observatory Supernova搜索（损失）随访计划中观察到的。我们的SESN样品由19个光谱镜形成正常的SNE〜IB，两个奇特的SNE IB，6个SN IBN，14个正常的SNE IC，一个特殊的SN IC，十个SNE IC-BL，15 SNE IIB，15 SNE IIB，一个模棱两可的SN IIB/IB/IB/IB/C和两个Supluminoins Sne。我们的后续光度法（以每SN为基础）的平均覆盖率为81个光度值（中位数为58点），平均节奏为3.6d（中位数为1.2d）。从我们的完整样本中，38 SNE的子集在至少一个通过带中具有最大最大覆盖率，从而可以定量确定此子集中每个SN的峰值亮度。我们描述了我们的数据收集和处理技术，重点是自动化光度法管道，我们从中得出了公开可用的数据产品，以实现和鼓励社区进一步研究。使用这些数据产品，我们通过经验颜色的演化关系得出宿主 - 半消光值，并首次为光学和红外传递带中的大量SESNE产生准确的上升时间测量值。通过对多播光曲线进行建模，我们发现SNE IC倾向于比SNE〜IB和IIB具有较低的喷射质量和较低的喷射速度，但是$^{56} $ NI质量较高。
We present BVRI and unfiltered Clear light curves of 70 stripped-envelope supernovae (SESNe), observed between 2003 and 2020, from the Lick Observatory Supernova Search (LOSS) follow-up program. Our SESN sample consists of 19 spectroscopically normal SNe~Ib, two peculiar SNe Ib, six SN Ibn, 14 normal SNe Ic, one peculiar SN Ic, ten SNe Ic-BL, 15 SNe IIb, one ambiguous SN IIb/Ib/c, and two superluminous SNe. Our follow-up photometry has (on a per-SN basis) a mean coverage of 81 photometric points (median of 58 points) and a mean cadence of 3.6d (median of 1.2d). From our full sample, a subset of 38 SNe have pre-maximum coverage in at least one passband, allowing for the peak brightness of each SN in this subset to be quantitatively determined. We describe our data collection and processing techniques, with emphasis toward our automated photometry pipeline, from which we derive publicly available data products to enable and encourage further study by the community. Using these data products, we derive host-galaxy extinction values through the empirical colour evolution relationship and, for the first time, produce accurate rise-time measurements for a large sample of SESNe in both optical and infrared passbands. By modeling multiband light curves, we find that SNe Ic tend to have lower ejecta masses and lower ejecta velocities than SNe~Ib and IIb, but higher $^{56}$Ni masses.
