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Searching for Binary and Dual Supermassive Black Holes in Large Surveys
Searching for Binary and Dual Supermassive Black Holes in Large Surveys
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105211
- ISBN
- 9798291563946
- DDC
- 520
- 서명/저자
- Searching for Binary and Dual Supermassive Black Holes in Large Surveys
- 발행사항
- [Sl] : University of Illinois at Urbana-Champaign, 2023
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2023
- 형태사항
- 202 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
- 주기사항
- Advisor: Gammie, Charles;Liu, Xin.
- 학위논문주기
- Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2023.
- 초록/해제
- 요약The observed structure of the universe suggests that galaxy mergers and the co-evolution of their central supermassive black holes (SMBHs) are common throughout the cosmos. While the formation of binary SMBHs seems inevitable, direct observational evidence of binary SMBHs has been elusive. No gravitational wave has yet been detected from the coalescence of a binary SMBH in the local universe. Evolution of binary SMBHs from kilo-parsec to sub-parsec scales and their interactions with host galaxies are still not well understood. Active SMBHs, known as quasars, provide an excellent way to study distant SMBHs in electromagnetic waves. A census of dual and binary quasars in different scales remains an essential puzzle in many aspects of astronomy. This dissertation consists of several studies aimed at searching for dual and binary quasars on different scales, from kilo-parsec to milliparsec. Chapter 2 focuses on discovering kilo-parsec dual quasar candidates using a novel astrometric technique. Chapter 3 presents a case study of a confirmed kilo-parsec dual quasar in a galaxy merger at a redshift of 2.17. In Chapter 4, the focus shifts to the search for dual/offset quasar candidates with parsec-scale separations. Chapter 5 presents a systematic search of periodic quasars, which are thought to be sub-parsec binary SMBHs, using optical light curves. Chapter 6 investigates the processing jet scenario for three periodic quasar candidates discovered in Chapter 5. This thesis paves the way for discovering dual and binary quasars using various methods and provides implications for future telescopes and surveys.
- 일반주제명
- Astronomy
- 일반주제명
- Astrophysics
- 일반주제명
- Aeronomy
- 키워드
- Active galaxies
- 키워드
- Quasars
- 키워드
- Binaries
- 키워드
- Galaxy evolution
- 키워드
- Surveys
- 기타저자
- University of Illinois at Urbana-Champaign Astronomy
- 기본자료저록
- Dissertations Abstracts International. 87-02B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■1001 ▼aChen, Yu-Ching Tony.
■24510▼aSearching for Binary and Dual Supermassive Black Holes in Large Surveys
■260 ▼a[Sl]▼bUniversity of Illinois at Urbana-Champaign▼c2023
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2023
■300 ▼a202 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-02, Section: B.
■500 ▼aAdvisor: Gammie, Charles;Liu, Xin.
■5021 ▼aThesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2023.
■520 ▼aThe observed structure of the universe suggests that galaxy mergers and the co-evolution of their central supermassive black holes (SMBHs) are common throughout the cosmos. While the formation of binary SMBHs seems inevitable, direct observational evidence of binary SMBHs has been elusive. No gravitational wave has yet been detected from the coalescence of a binary SMBH in the local universe. Evolution of binary SMBHs from kilo-parsec to sub-parsec scales and their interactions with host galaxies are still not well understood. Active SMBHs, known as quasars, provide an excellent way to study distant SMBHs in electromagnetic waves. A census of dual and binary quasars in different scales remains an essential puzzle in many aspects of astronomy. This dissertation consists of several studies aimed at searching for dual and binary quasars on different scales, from kilo-parsec to milliparsec. Chapter 2 focuses on discovering kilo-parsec dual quasar candidates using a novel astrometric technique. Chapter 3 presents a case study of a confirmed kilo-parsec dual quasar in a galaxy merger at a redshift of 2.17. In Chapter 4, the focus shifts to the search for dual/offset quasar candidates with parsec-scale separations. Chapter 5 presents a systematic search of periodic quasars, which are thought to be sub-parsec binary SMBHs, using optical light curves. Chapter 6 investigates the processing jet scenario for three periodic quasar candidates discovered in Chapter 5. This thesis paves the way for discovering dual and binary quasars using various methods and provides implications for future telescopes and surveys.
■590 ▼aSchool code: 0090.
■650 4▼aAstronomy
■650 4▼aAstrophysics
■650 4▼aAeronomy
■653 ▼aActive galaxies
■653 ▼aQuasars
■653 ▼aBinaries
■653 ▼aGalaxy evolution
■653 ▼aSurveys
■690 ▼a0606
■690 ▼a0367
■690 ▼a0596
■71020▼aUniversity of Illinois at Urbana-Champaign▼bAstronomy.
■7730 ▼tDissertations Abstracts International▼g87-02B.
■790 ▼a0090
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359771▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
