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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
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
- Neutrino
- 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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■00520260202105417
■006m o d
■007cr#unu||||||||
■020 ▼a9798291571606
■035 ▼a(MiAaPQ)AAI32238859
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a523
■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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