典型文献
Radiative Diffusion in a Time-dependent Outflow:a Model for Fast Blue Optical Transients
文献摘要：
Fast Blue Optical Transients (FBOTs) are luminous transients with fast evolving (typically trice＜12 days) light curve and blue color (usually-0.2＞ g-r＞-0.3) that cannot be explained by a supernova-like explosion.We propose a radiative diffusion in a time-dependent outflow model to interpret such special transients. In this model, we assume that a central engine ejects continuous outflow during a few days. We consider the ejection of the outflow to be time-dependent. The outflow is optically thick initially and photons are frozen in it. As the outflow expands over time, photons gradually escape, and our work is to model such an evolution. Numerical and analytical calculations are considered separately, and the results are consistent. We apply the model to three typical FBOTs: PS1-10bjp, ZTF18abukavn, and ATLAS19dqr. The modeling finds the total mass of the outflow (～1-5 M⊙), and the total time of the ejection (～a few days) for them, leading us to speculate that they may be the result of the collapse of massive stars.
文献关键词：
中图分类号：
作者姓名：
Chun Chen;Rong-Feng Shen
作者机构：
School of Physics and Astronomy, Sun Yat-Sen University, Zhuhai 519082, China;CSST Science Center for the Guangdong-Hong Kong-Macau Greater Bay Area, Sun Yat-Sen University, Zhuhai 519082, China
文献出处：
引用格式：
[1]Chun Chen;Rong-Feng Shen-.Radiative Diffusion in a Time-dependent Outflow:a Model for Fast Blue Optical Transients)[J].天文和天体物理学研究,2022(03):168-177
A类：
Outflow,Transients,FBOTs,trice,ejects,10bjp,ZTF18abukavn,ATLAS19dqr
B类：
Radiative,Diffusion,Time,dependent,Model,Fast,Blue,Optical,are,luminous,transients,fast,evolving,typically,days,light,curve,blue,color,usually,that,cannot,be,explained,by,supernova,like,explosion,We,propose,radiative,diffusion,outflow,interpret,such,special,In,this,we,assume,central,engine,continuous,during,few,ejection,optically,thick,initially,photons,frozen,expands,over,gradually,escape,our,work,evolution,Numerical,analytical,calculations,considered,separately,results,consistent,apply,three,PS1,modeling,finds,total,them,leading,speculate,they,may,collapse,massive,stars
AB值：
0.513094
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