SN 2021csp——一颗剥离包层恒星在贫H与贫He星周介质中的爆发
太阳与恒星天体物理
2021-08-18 v1 星系天体物理
摘要
我们呈现SN 2021csp的观测，这是一颗独特的超新星(SN)，在早期显示出与贫H和贫He星周物质(CSM)相互作用的证据。利用爆炸后第一周内获取的高节奏光谱，我们表明SN 2021csp的光谱以速度1800 km s的C III线为主导。我们将此发射归因于前身星在爆炸前抛出的CSM。随后，该SN显示出窄He线，之后转变为宽线Ic型SN。我们模拟了SN 2021csp的热光度光变曲线，并表明其与一颗剥离恒星的爆发( erg)一致，在延伸至400 R的约1 M CSM壳层内产生了0.4 M的56Ni。
引用
@article{arxiv.2108.07278,
title = {SN 2021csp -- the explosion of a stripped envelope star within a H and He-poor circumstellar medium},
author = {Morgan Fraser and Maximilian D. Stritzinger and Sean J. Brennan and Andrea Pastorello and Yongzhi Cai and Anthony L. Piro and Chris Ashall and Peter Brown and Christopher R. Burns and Nancy Elias-Rosa and Rubina Kotak and Alexei V. Filippenko and L. Galbany and E. Y. Hsiao and Saurabh W. Jha and Andrea Reguitti and Ju-jia Zhang and Shane Moran and Nidia Morrell and B. J. Shappee and Lina Tomasella and J. P. Anderson and Tyler Barna and Paolo Ochner and M. M. Phillips and Michael Tucker and Xiaofeng Wang and E. Baron and Stefano Benetti and Melina C. Bersten and Thomas G. Brink and Yssavo Camacho-Neves and Scott Davis and Kyle G. Dettman and Gaston Folatelli and Claudia P. Gutierrez and Peter Hoflich and Thomas W. -S. Holoien and Erkki Kankare and Sahana Kumar and Jing Lu and Paolo Mazzali and Stefan Taubenberger and Samaporn Tinyanont and Hanindyo Kuncarayakti and Lindsey Kwok and Melissa Shahbandeh and Nicholas B. Suntzeff and Shengyu Yan and Yi Yang and WeiKang Zheng},
journal= {arXiv preprint arXiv:2108.07278},
year = {2021}
}
备注
19 pg, submitted