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IIP or Not IIP: Theoretical Models of Delayed Explosions of Red Supergiants Following "Failed" Supernovae
IIP or Not IIP: Theoretical Models of Delayed Explosions of Red Supergiants Following "Fai...
IIP or Not IIP: Theoretical Models of Delayed Explosions of Red Supergiants Following "Failed" Supernovae

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20250211151435
ISBN  
9798384447597
DDC  
523
저자명  
Antoni, Andrea.
서명/저자  
IIP or Not IIP: Theoretical Models of Delayed Explosions of Red Supergiants Following Failed Supernovae
발행사항  
[Sl] : University of California, Berkeley, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
136 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
주기사항  
Advisor: Quataert, Eliot.
학위논문주기  
Thesis (Ph.D.)--University of California, Berkeley, 2024.
초록/해제  
요약A red supergiant (RSG) is the most common manifestation of a massive star at the end of its life. When collapse of the iron core of the star leads to a successful supernova (SN) explosion, the observational signature is a Type IIP SN, which is the most common type of SN. The successful explosion of a RSG usually leaves behind a neutron star while the rest of the enriched stellar matter is returned to the surrounding environment. The SN mechanism can fail in a reasonable fraction of stellar deaths. In that case, the core unavoidably forms a black hole (BH) that consumes the inner, metal-rich layers of the star and a large fraction of the extended, convective hydrogen envelope remains bound to the BH. This thesis considers the subsequent evolution of the BH and envelope following a "failed" SN including the critical questions of whether there is still an explosion or observable transient and how much mass the BH is ultimately able to accrete.In Chs. 2 and 3, I use three-dimensional simulations to show that the convective envelope of a RSG has too much turbulent angular momentum to accrete and that infall of the turbulent material leads to a ∼1048 erg explosion of star and associated transient resembling a luminous red nova. Magnetic fields are important in the envelopes of RSGs but we do not know how they will affect the accretion flow following a failed SN. In Ch. 4, I show that the magnetic fields in the envelope are tangled with strengths of the order of hundreds of Gauss, but grow more shallowly during collapse than r−2 such that angular momentum and magnetic fields became dynamically important at similar radii. In the final chapter, I discuss my work modeling the light curves of failed supernovae. This work will apply to a wider range of scenarios in which mass is stripped from the envelopes of evolved massive stars. An important application of this work is to differentiate between luminous red novae of binary-merger origin and those arising from BH birth in failed SN. Overall, this work is important for contextualizing the upcoming LSST survey on the Rubin Observatory, which will observe 100s-1000 times more luminous red novae than the Zwicky Transient Facility. In addition, these cooler explosions self-enshroud as they form dust; detailed modeling of these events will help leverage the infrared transient sky made accessible by WINTER, DREAMS, JWST, and Roman.
일반주제명  
Astrophysics
일반주제명  
Astronomy
일반주제명  
Applied physics
일반주제명  
Physics
키워드  
Black holes
키워드  
Red supergiants
키워드  
Supernovae
키워드  
Magnetic fields
키워드  
Light curves
기타저자  
University of California, Berkeley Astrophysics
기본자료저록  
Dissertations Abstracts International. 86-04B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■1001  ▼aAntoni,  Andrea.
■24510▼aIIP  or  Not  IIP:  Theoretical  Models  of  Delayed  Explosions  of  Red  Supergiants  Following  "Failed"  Supernovae
■260    ▼a[Sl]▼bUniversity  of  California,  Berkeley▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
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■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-04,  Section:  B.
■500    ▼aAdvisor:  Quataert,  Eliot.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Berkeley,  2024.
■520    ▼aA  red  supergiant  (RSG)  is  the  most  common  manifestation  of  a  massive  star  at  the  end  of  its  life.  When  collapse  of  the  iron  core  of  the  star  leads  to  a  successful  supernova  (SN)  explosion,  the  observational  signature  is  a  Type  IIP  SN,  which  is  the  most  common  type  of  SN.  The  successful  explosion  of  a  RSG  usually  leaves  behind  a  neutron  star  while  the  rest  of  the  enriched  stellar  matter  is  returned  to  the  surrounding  environment.  The  SN  mechanism  can  fail  in  a  reasonable  fraction  of  stellar  deaths.  In  that  case,  the  core  unavoidably  forms  a  black  hole  (BH)  that  consumes  the  inner,  metal-rich  layers  of  the  star  and  a  large  fraction  of  the  extended,  convective  hydrogen  envelope  remains  bound  to  the  BH.  This  thesis  considers  the  subsequent  evolution  of  the  BH  and  envelope  following  a  "failed"  SN  including  the  critical  questions  of  whether  there  is  still  an  explosion  or  observable  transient  and  how  much  mass  the  BH  is  ultimately  able  to  accrete.In  Chs.  2  and  3,  I  use  three-dimensional  simulations  to  show  that  the  convective  envelope  of  a  RSG  has  too  much  turbulent  angular  momentum  to  accrete  and  that  infall  of  the  turbulent  material  leads  to  a  ∼1048  erg  explosion  of  star  and  associated  transient  resembling  a  luminous  red  nova.  Magnetic  fields  are  important  in  the  envelopes  of  RSGs  but  we  do  not  know  how  they  will  affect  the  accretion  flow  following  a  failed  SN.  In  Ch.  4,  I  show  that  the  magnetic  fields  in  the  envelope  are  tangled  with  strengths  of  the  order  of  hundreds  of  Gauss,  but  grow  more  shallowly  during  collapse  than  r−2  such  that  angular  momentum  and  magnetic  fields  became  dynamically  important  at  similar  radii.  In  the  final  chapter,  I  discuss  my  work  modeling  the  light  curves  of  failed  supernovae.  This  work  will  apply  to  a  wider  range  of  scenarios  in  which  mass  is  stripped  from  the  envelopes  of  evolved  massive  stars.  An  important  application  of  this  work  is  to  differentiate  between  luminous  red  novae  of  binary-merger  origin  and  those  arising  from  BH  birth  in  failed  SN.  Overall,  this  work  is  important  for  contextualizing  the  upcoming  LSST  survey  on  the  Rubin  Observatory,  which  will  observe  100s-1000  times  more  luminous  red  novae  than  the  Zwicky  Transient  Facility.  In  addition,  these  cooler  explosions  self-enshroud  as  they  form  dust;  detailed  modeling  of  these  events  will  help  leverage  the  infrared  transient  sky  made  accessible  by  WINTER,  DREAMS,  JWST,  and  Roman.
■590    ▼aSchool  code:  0028.
■650  4▼aAstrophysics
■650  4▼aAstronomy
■650  4▼aApplied  physics
■650  4▼aPhysics
■653    ▼aBlack  holes
■653    ▼aRed  supergiants
■653    ▼aSupernovae
■653    ▼aMagnetic  fields
■653    ▼aLight  curves
■690    ▼a0596
■690    ▼a0606
■690    ▼a0215
■690    ▼a0605
■71020▼aUniversity  of  California,  Berkeley▼bAstrophysics.
■7730  ▼tDissertations  Abstracts  International▼g86-04B.
■790    ▼a0028
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17161719▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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