典型文献
A Common Envelope Jets Supernova(CEJSN)Impostor Scenario for Fast Blue Optical Transients
文献摘要：
I propose a new scenario,the polar common envelope jets supernova(CEJSN)impostor scenario,to account for AT2018cow-like fast blue optical transients(FBOTs).The polar CEJSN impostor scenario evolves through four main phases.(1)A red supergiant(RSG)star expands to tidally interact with a neutron star(NS)companion(or a black hole).The interaction increases the RSG mass loss rate to form a circumstellar matter(CSM)halo to r(∽)0.1 pc.(2)Shortly before the onset of a common envelope evolution(CEE)and about a year before explosion the NS accretes mass from the RSG envelope and launches jets that inflate two opposite lobes in the CSM within ≈100 au.(3)The NS-RSG system enters a CEE phase during which the system ejects most of the envelope mass in a dense equatorial outflow.(4)At the termination of the CEE the leftover envelope forms a circumbinary disk around the NS-core system.The NS accretes mass from the circumbinary disk and launches energetic jets that,when colliding with the fronts of the CSM lobes,power an FBOT event.The low mass of the jets-lobes interaction zones and their large distance,of about 100 au,from the center account for the fast transient.In the future the core collapses to form a second NS.In the far future the two NSs might merge.I suggest that FBOTs and similar fast transients are CEJSN impostors which compose a large fraction of the progenitors of NS-NS merger binaries.
文献关键词：
中图分类号：
作者姓名：
Noam Soker
作者机构：
Department of Physics,Technion,Haifa,3200003,Israel
文献出处：
引用格式：
[1]Noam Soker-.A Common Envelope Jets Supernova(CEJSN)Impostor Scenario for Fast Blue Optical Transients)[J].天文和天体物理学研究,2022(05):87-97
A类：
Supernova,CEJSN,Impostor,Transients,impostor,AT2018cow,FBOTs,supergiant,circumstellar,accretes,ejects,leftover,circumbinary,FBOT,impostors,binaries
B类：
Common,Envelope,Jets,Scenario,Fast,Blue,Optical,propose,new,scenario,polar,common,envelope,jets,supernova,account,like,fast,blue,optical,transients,evolves,through,four,main,phases,red,RSG,star,expands,tidally,neutron,companion,black,hole,interaction,increases,mass,loss,rate,matter,CSM,halo,pc,Shortly,before,onset,evolution,CEE,about,year,explosion,from,launches,that,inflate,two,opposite,lobes,within,system,enters,during,which,most,dense,equatorial,outflow,At,termination,forms,disk,around,core,energetic,when,colliding,fronts,power,event,zones,their,large,distance,center,In,future,collapses,second,far,NSs,might,suggest,similar,are,compose,fraction,progenitors,merger
AB值：
0.445103
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