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Toward Self-Consistent Models of High-Energy Transients from Stellar Remnants- [electronic resource]
Toward Self-Consistent Models of High-Energy Transients from Stellar Remnants - [electroni...
Toward Self-Consistent Models of High-Energy Transients from Stellar Remnants- [electronic resource]

Detailed Information

Material Type  
 단행본
 
0016934834
Date and Time of Latest Transaction  
20240214101659
ISBN  
9798380416207
DDC  
523
Author  
Halevi, Goni.
Title/Author  
Toward Self-Consistent Models of High-Energy Transients from Stellar Remnants - [electronic resource]
Publish Info  
[S.l.]: : Princeton University., 2023
Publish Info  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
Material Info  
1 online resource(181 p.)
General Note  
Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
General Note  
Advisor: Stone, James M.
학위논문주기  
Thesis (Ph.D.)--Princeton University, 2023.
Restrictions on Access Note  
This item must not be sold to any third party vendors.
Abstracts/Etc  
요약The universe is vast and mostly empty, but it is not static or dull. All massive stars collapse quickly, and some explode, releasing more energy in a few seconds than our own sun has over its entire lifetime. The cores of these stars form compact objects-- neutron stars and black holes-- that can spiral toward one another, emitting gravitational waves, ejecting mass, and producing light as they collide. Black holes swallow material by accreting from gaseous disks, sometimes launching relativistic, collimated outflows as they spin, tangling up the magnetic fields that are carried toward them. These luminous, fast events are responsible for making the heaviest elements in our universe and lighting up the sky as brief, bright sources that have captivated humans for over a millennium. Today, they are observable in huge numbers, not just with telescopes that are sensitive to light across the electromagnetic spectrum, from radio waves to gamma rays, but also with interferometers that detect gravitational waves. With upcoming observatories, we will soon be inundated with data in the field of time-domain astronomy, rendering the pursuit of complex, multi-physics models for stellar collapse, accretion, and mergers timely. In this dissertation, I study a range of high-energy astrophysical transients powered by massive stars and their remnants by numerically solving the equations that govern fluids in regions of strong gravity. I improve upon current state-of-the-art models that use idealized initial conditions or explore a limited region of parameter space to gain insight into the progenitor systems that drive luminous transients and their evolution. I begin by summarizing the observational and theoretical state of the field and providing an overview of the fundamental physical processes of relevance. I then present results from three studies I led, two of which deal with collapsing massive stars as progenitors for bursts of gamma-ray emission, and a third exploring magnetic fields with applications to stellar encounters with black holes. I conclude with a discussion of future work I intend to carry out, focusing on the synthesis of elements in these events, and preliminary results related to it.
Subject Added Entry-Topical Term  
Astrophysics.
Subject Added Entry-Topical Term  
Computational physics.
Subject Added Entry-Topical Term  
Astronomy.
Index Term-Uncontrolled  
Black holes
Index Term-Uncontrolled  
Gamma ray bursts
Index Term-Uncontrolled  
High-energy astrophysics
Index Term-Uncontrolled  
Magnetohydrodynamics
Added Entry-Corporate Name  
Princeton University Astrophysical Sciences
Host Item Entry  
Dissertations Abstracts International. 85-03B.
Host Item Entry  
Dissertation Abstract International
Electronic Location and Access  
로그인 후 원문을 볼 수 있습니다.
소장사항  
202402 2024

MARC

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■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a523
■1001  ▼aHalevi,  Goni.
■24510▼aToward  Self-Consistent  Models  of  High-Energy  Transients  from  Stellar  Remnants▼h[electronic  resource]
■260    ▼a[S.l.]:▼bPrinceton  University.  ▼c2023
■260  1▼aAnn  Arbor  :▼bProQuest  Dissertations  &  Theses,  ▼c2023
■300    ▼a1  online  resource(181  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-03,  Section:  B.
■500    ▼aAdvisor:  Stone,  James  M.
■5021  ▼aThesis  (Ph.D.)--Princeton  University,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■520    ▼aThe  universe  is  vast  and  mostly  empty,  but  it  is  not  static  or  dull.  All  massive  stars  collapse  quickly,  and  some  explode,  releasing  more  energy  in  a  few  seconds  than  our  own  sun  has  over  its  entire  lifetime.  The  cores  of  these  stars  form  compact  objects--  neutron  stars  and  black  holes--  that  can  spiral  toward  one  another,  emitting  gravitational  waves,  ejecting  mass,  and  producing  light  as  they  collide.  Black  holes  swallow  material  by  accreting  from  gaseous  disks,  sometimes  launching  relativistic,  collimated  outflows  as  they  spin,  tangling  up  the  magnetic  fields  that  are  carried  toward  them.  These  luminous,  fast  events  are  responsible  for  making  the  heaviest  elements  in  our  universe  and  lighting  up  the  sky  as  brief,  bright  sources  that  have  captivated  humans  for  over  a  millennium.  Today,  they  are  observable  in  huge  numbers,  not  just  with  telescopes  that  are  sensitive  to  light  across  the  electromagnetic  spectrum,  from  radio  waves  to  gamma  rays,  but  also  with  interferometers  that  detect  gravitational  waves.  With  upcoming  observatories,  we  will  soon  be  inundated  with  data  in  the  field  of  time-domain  astronomy,  rendering  the  pursuit  of  complex,  multi-physics  models  for  stellar  collapse,  accretion,  and  mergers  timely.  In  this  dissertation,  I  study  a  range  of  high-energy  astrophysical  transients  powered  by  massive  stars  and  their  remnants  by  numerically  solving  the  equations  that  govern  fluids  in  regions  of  strong  gravity.  I  improve  upon  current  state-of-the-art  models  that  use  idealized  initial  conditions  or  explore  a  limited  region  of  parameter  space  to  gain  insight  into  the  progenitor  systems  that  drive  luminous  transients  and  their  evolution.  I  begin  by  summarizing  the  observational  and  theoretical  state  of  the  field  and  providing  an  overview  of  the  fundamental  physical  processes  of  relevance.  I  then  present  results  from  three  studies  I  led,  two  of  which  deal  with  collapsing  massive  stars  as  progenitors  for  bursts  of  gamma-ray  emission,  and  a  third  exploring  magnetic  fields  with  applications  to  stellar  encounters  with  black  holes.  I  conclude  with  a  discussion  of  future  work  I  intend  to  carry  out,  focusing  on  the  synthesis  of  elements  in  these  events,  and  preliminary  results  related  to  it.
■590    ▼aSchool  code:  0181.
■650  4▼aAstrophysics.
■650  4▼aComputational  physics.
■650  4▼aAstronomy.
■653    ▼aBlack  holes
■653    ▼aGamma  ray  bursts
■653    ▼aHigh-energy  astrophysics
■653    ▼aMagnetohydrodynamics
■690    ▼a0596
■690    ▼a0216
■690    ▼a0606
■71020▼aPrinceton  University▼bAstrophysical  Sciences.
■7730  ▼tDissertations  Abstracts  International▼g85-03B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0181
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16934834▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

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