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Exploring the Spin Distribution of Stellar Mass Black Holes
Exploring the Spin Distribution of Stellar Mass Black Holes
Exploring the Spin Distribution of Stellar Mass Black Holes

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자료유형  
 학위논문 서양
최종처리일시  
20250211152953
ISBN  
9798384042099
DDC  
523
저자명  
Draghis, Paul Andrei.
서명/저자  
Exploring the Spin Distribution of Stellar Mass Black Holes
발행사항  
[Sl] : University of Michigan, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
342 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
주기사항  
Advisor: Miller, Jon M.
학위논문주기  
Thesis (Ph.D.)--University of Michigan, 2024.
초록/해제  
요약The launch of NuSTAR and the increasing number of binary black hole mergers detected through gravitational wave observations have exponentially advanced our understanding of black holes. Despite the simplicity owed to being fully described by their mass and angular momentum, black holes have remained mysterious laboratories that probe the most extreme environments in the Universe. While significant progress has been made in the recent decade, the distribution of spin in black holes has not yet been understood. Exploring the spin distribution across stellar-mass black holes provides insight into the formation of black holes, supernova events, collapsar models, gamma-ray bursts, the formation and evolution of X-ray binary systems and binary black hole systems, and the physics of accretion. The preferred spin measurement techniques are "continuum fitting" and "relativistic reflection". Relativistic reflection is independent of black hole mass, accretion rate, and distance to the system, making it a more versatile technique. Up until now, spin measurements for the same black hole using the two methods did not always agree, and even measurements using the same method did not always adopt the same sets of assumptions and theoretical prescriptions. Our work provides a foundation that uses state-of-the-art relativistic reflection models to fully explore the entire physical parameter space and to provide a uniform treatment of a large sample of black holes. Using our pipeline on NuSTAR data, we measure more than a dozen new black hole spins in X-ray binary systems, significantly expanding the measured sample size, and remeasure existing black hole spins in order to compile a distribution of measurements made using entirely consistent methods and systematic uncertainties. Additionally, we analyze possible observational and modeling biases of the sample and compare the distribution to that of spins measured in mergers of binary black hole systems observed through gravitational waves, in order to offer a unified view of black hole spin evolution. We find that the observed spin distribution of black holes in X-ray binaries is sharply peaked at high values, incompatible with the spin distribution inferred based on gravitational wave signals from merging binary black holes, suggesting that the observed black hole distributions are inherently different. Understanding the distribution of black hole spins in X-ray binaries paves the way for future gravitational wave efforts and future X-ray missions such as XRISM, HEX-P, AXIS, STROBE-X, or ATHENA.
일반주제명  
Astrophysics
일반주제명  
Physics
일반주제명  
Astronomy
키워드  
Black holes
키워드  
X-ray binary systems
키워드  
Physics of accretion
키워드  
High-energy astrophysics
키워드  
X-ray astronomy
키워드  
Relativistic reflection
기타저자  
University of Michigan Astronomy and Astrophysics
기본자료저록  
Dissertations Abstracts International. 86-03B.
전자적 위치 및 접속  
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MARC

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■035    ▼a(MiAaPQ)umichrackham005787
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a523
■1001  ▼aDraghis,  Paul  Andrei.
■24510▼aExploring  the  Spin  Distribution  of  Stellar  Mass  Black  Holes
■260    ▼a[Sl]▼bUniversity  of  Michigan▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a342  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-03,  Section:  B.
■500    ▼aAdvisor:  Miller,  Jon  M.
■5021  ▼aThesis  (Ph.D.)--University  of  Michigan,  2024.
■520    ▼aThe  launch  of  NuSTAR  and  the  increasing  number  of  binary  black  hole  mergers  detected  through  gravitational  wave  observations  have  exponentially  advanced  our  understanding  of  black  holes.  Despite  the  simplicity  owed  to  being  fully  described  by  their  mass  and  angular  momentum,  black  holes  have  remained  mysterious  laboratories  that  probe  the  most  extreme  environments  in  the  Universe.  While  significant  progress  has  been  made  in  the  recent  decade,  the  distribution  of  spin  in  black  holes  has  not  yet  been  understood.  Exploring  the  spin  distribution  across  stellar-mass  black  holes  provides  insight  into  the  formation  of  black  holes,  supernova  events,  collapsar  models,  gamma-ray  bursts,  the  formation  and  evolution  of  X-ray  binary  systems  and  binary  black  hole  systems,  and  the  physics  of  accretion.  The  preferred  spin  measurement  techniques  are  "continuum  fitting"  and  "relativistic  reflection".  Relativistic  reflection  is  independent  of  black  hole  mass,  accretion  rate,  and  distance  to  the  system,  making  it  a  more  versatile  technique.  Up  until  now,  spin  measurements  for  the  same  black  hole  using  the  two  methods  did  not  always  agree,  and  even  measurements  using  the  same  method  did  not  always  adopt  the  same  sets  of  assumptions  and  theoretical  prescriptions.  Our  work  provides  a  foundation  that  uses  state-of-the-art  relativistic  reflection  models  to  fully  explore  the  entire  physical  parameter  space  and  to  provide  a  uniform  treatment  of  a  large  sample  of  black  holes.  Using  our  pipeline  on  NuSTAR  data,  we  measure  more  than  a  dozen  new  black  hole  spins  in  X-ray  binary  systems,  significantly  expanding  the  measured  sample  size,  and  remeasure  existing  black  hole  spins  in  order  to  compile  a  distribution  of  measurements  made  using  entirely  consistent  methods  and  systematic  uncertainties.  Additionally,  we  analyze  possible  observational  and  modeling  biases  of  the  sample  and  compare  the  distribution  to  that  of  spins  measured  in  mergers  of  binary  black  hole  systems  observed  through  gravitational  waves,  in  order  to  offer  a  unified  view  of  black  hole  spin  evolution.  We  find  that  the  observed  spin  distribution  of  black  holes  in  X-ray  binaries  is  sharply  peaked  at  high  values,  incompatible  with  the  spin  distribution  inferred  based  on  gravitational  wave  signals  from  merging  binary  black  holes,  suggesting  that  the  observed  black  hole  distributions  are  inherently  different.  Understanding  the  distribution  of  black  hole  spins  in  X-ray  binaries  paves  the  way  for  future  gravitational  wave  efforts  and  future  X-ray  missions  such  as  XRISM,  HEX-P,  AXIS,  STROBE-X,  or  ATHENA.
■590    ▼aSchool  code:  0127.
■650  4▼aAstrophysics
■650  4▼aPhysics
■650  4▼aAstronomy
■653    ▼aBlack  holes
■653    ▼aX-ray  binary  systems
■653    ▼aPhysics  of  accretion
■653    ▼aHigh-energy  astrophysics
■653    ▼aX-ray  astronomy
■653    ▼aRelativistic  reflection
■690    ▼a0606
■690    ▼a0596
■690    ▼a0605
■71020▼aUniversity  of  Michigan▼bAstronomy  and  Astrophysics.
■7730  ▼tDissertations  Abstracts  International▼g86-03B.
■790    ▼a0127
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164360▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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