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Cross Correlation of IceCube Neutrinos with Tracers of Large Scale Structure
Cross Correlation of IceCube Neutrinos with Tracers of Large Scale Structure
Cross Correlation of IceCube Neutrinos with Tracers of Large Scale Structure

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202105417
ISBN  
9798291571606
DDC  
523
저자명  
Guevel, David J.
서명/저자  
Cross Correlation of IceCube Neutrinos with Tracers of Large Scale Structure
발행사항  
[Sl] : The University of Wisconsin - Madison, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
138 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
주기사항  
Advisor: Fang, Ke.
학위논문주기  
Thesis (Ph.D.)--The University of Wisconsin - Madison, 2025.
초록/해제  
요약Multi-messenger astrophysics aims to study energetic astrophysical environments using physical channels that have historically been inaccessible. Technological developments have created new opportunities to detect neutrinos, cosmic rays, and gravitational waves from distant astrophysical environments. Neutrinos are unique among these messengers because they are produced in large numbers in energetic environments and because they propagate through interstellar and intergalactic space with little interaction along the way preserving the information about their sources. The IceCube Neutrino Observatory has discovered astrophysical neutrinos from extragalactic, and galactic sources and unresolved background sources. The accelerators that produce the energetic extragalactic neutrinos likely trace the large-scale structure, so the diffuse astrophysical neutrino flux may exhibit anisotropy similar to other large-scale structure tracers though no anisotropy has been detected in the diffuse neutrino flux. Galaxies, detected in infrared observations, are well-suited to be used as tracers of large-scale structure. This thesis presents a two-point angular cross-correlation between IceCube neutrinos and an infrared galaxy catalog. This angular correlation required novel modifications to include the effects IceCube's declination and energy dependent effective area and point spread function while also accounting for multipole coupling caused by the use of a galactic plane mask. Despite improvements in the sensitivity to anisotropy, no statistically significant correlation was observed. The upper limit on the correlation strength is used to place constraints on the share of the diffuse neutrino flux that can be contributed from source correlated with the local large-scale structure. If the neutrino spectral energy distribution follows a power law with a spectral index held fixed to the diffuse muon neutrino measurement, the correlated sources can contribute no more than 54% of the diffuse muon neutrino flux. I also placed constraints on the evolution of neutrino sources with respect to redshift, assuming a parameterized model of neutrino source redshift evolution. The correlation upper limit rules out nearby source populations while allowing more distant evolution models, such as those tracing the star-formation rate. The next generation of ice Cherenkov detectors such as IceCube Gen2 will be capable of constraining the correlation with three times the precision and potentially detecting anisotropy in the diffuse neutrino flux.
일반주제명  
Astrophysics
일반주제명  
Astronomy
일반주제명  
Physics
일반주제명  
Particle physics
키워드  
IceCube
키워드  
Large-scale structure
키워드  
Neutrino
키워드  
Particle astrophysics
기타저자  
The University of Wisconsin - Madison Physics
기본자료저록  
Dissertations Abstracts International. 87-02B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■1001  ▼aGuevel,  David  J.
■24510▼aCross  Correlation  of  IceCube  Neutrinos  with  Tracers  of  Large  Scale  Structure
■260    ▼a[Sl]▼bThe  University  of  Wisconsin  -  Madison▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a138  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-02,  Section:  B.
■500    ▼aAdvisor:  Fang,  Ke.
■5021  ▼aThesis  (Ph.D.)--The  University  of  Wisconsin  -  Madison,  2025.
■520    ▼aMulti-messenger  astrophysics  aims  to  study  energetic  astrophysical  environments  using  physical  channels  that  have  historically  been  inaccessible.  Technological  developments  have  created  new  opportunities  to  detect  neutrinos,  cosmic  rays,  and  gravitational  waves  from  distant  astrophysical  environments.  Neutrinos  are  unique  among  these  messengers  because  they  are  produced  in  large  numbers  in  energetic  environments  and  because  they  propagate  through  interstellar  and  intergalactic  space  with  little  interaction  along  the  way  preserving  the  information  about  their  sources.  The  IceCube  Neutrino  Observatory  has  discovered  astrophysical  neutrinos  from  extragalactic,  and  galactic  sources  and  unresolved  background  sources.  The  accelerators  that  produce  the  energetic  extragalactic  neutrinos  likely  trace  the  large-scale  structure,  so  the  diffuse  astrophysical  neutrino  flux  may  exhibit  anisotropy  similar  to  other  large-scale  structure  tracers  though  no  anisotropy  has  been  detected  in  the  diffuse  neutrino  flux.  Galaxies,  detected  in  infrared  observations,  are  well-suited  to  be  used  as  tracers  of  large-scale  structure.  This  thesis  presents  a  two-point  angular  cross-correlation  between  IceCube  neutrinos  and  an  infrared  galaxy  catalog.  This  angular  correlation  required  novel  modifications  to  include  the  effects  IceCube's  declination  and  energy  dependent  effective  area  and  point  spread  function  while  also  accounting  for  multipole  coupling  caused  by  the  use  of  a  galactic  plane  mask.  Despite  improvements  in  the  sensitivity  to  anisotropy,  no  statistically  significant  correlation  was  observed.  The  upper  limit  on  the  correlation  strength  is  used  to  place  constraints  on  the  share  of  the  diffuse  neutrino  flux  that  can  be  contributed  from  source  correlated  with  the  local  large-scale  structure.  If  the  neutrino  spectral  energy  distribution  follows  a  power  law  with  a  spectral  index  held  fixed  to  the  diffuse  muon  neutrino  measurement,  the  correlated  sources  can  contribute  no  more  than  54%  of  the  diffuse  muon  neutrino  flux.  I  also  placed  constraints  on  the  evolution  of  neutrino  sources  with  respect  to  redshift,  assuming  a  parameterized  model  of  neutrino  source  redshift  evolution.  The  correlation  upper  limit  rules  out  nearby  source  populations  while  allowing  more  distant  evolution  models,  such  as  those  tracing  the  star-formation  rate.  The  next  generation  of  ice  Cherenkov  detectors  such  as  IceCube  Gen2  will  be  capable  of  constraining  the  correlation  with  three  times  the  precision  and  potentially  detecting  anisotropy  in  the  diffuse  neutrino  flux.
■590    ▼aSchool  code:  0262.
■650  4▼aAstrophysics
■650  4▼aAstronomy
■650  4▼aPhysics
■650  4▼aParticle  physics
■653    ▼aIceCube
■653    ▼aLarge-scale  structure
■653    ▼aNeutrino
■653    ▼aParticle  astrophysics
■690    ▼a0596
■690    ▼a0606
■690    ▼a0605
■690    ▼a0798
■71020▼aThe  University  of  Wisconsin  -  Madison▼bPhysics.
■7730  ▼tDissertations  Abstracts  International▼g87-02B.
■790    ▼a0262
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360276▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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