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Sub-Kpc Scale Analysis of Stellar Chemical Abundance and Star Formation Distributions in Nearby Galaxies
Sub-Kpc Scale Analysis of Stellar Chemical Abundance and Star Formation Distributions in Nearby Galaxies
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152804
- ISBN
- 9798384098027
- DDC
- 520
- 서명/저자
- Sub-Kpc Scale Analysis of Stellar Chemical Abundance and Star Formation Distributions in Nearby Galaxies
- 발행사항
- [Sl] : University of Washington, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 141 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
- 주기사항
- Advisor: Williams, Benjamin.
- 학위논문주기
- Thesis (Ph.D.)--University of Washington, 2024.
- 초록/해제
- 요약Nearby galaxies provide critical insights into the complex chemical and stellar evolution of galaxies over cosmic time. High-quality resolved measurements provide insight into the intrinsic details of evolution when investigating the stellar population and chemical abundance in the bulge and disk regions. Furthermore, this allows us to compare the radial distribution properties of different galaxies to examine their recent evolution, especially among distinct galaxies. In this work, we utilize integral field unit spectroscopy (IFS) and high-resolution stellar photometry to examine the distribution of nearby galaxies. We first investigate the radial distribution of stellar population, star formation, and oxygen abundance in centrally star-forming galaxies with photometrically red disks, termed BreakBRD galaxies, compared to the parent sample using the MaNGA IFS survey. We find that the BreakBRD galaxies exhibit a significant positive stellar population age profile but show no significant variation in stellar mass surface density, star formation surface density, or oxygen abundance. We estimate the RGB metallicity gradient of M31's northern and southern halves from the PHAT and PHAST surveys, respectively, and find a shallow negative gradient in both halves. We interpret this result as indicating that the older RGB stellar population is well mixed throughout the disk. Additionally, we have developed a photometry pipeline for future flagship surveys and used high-quality MaNGA data with a high-performance deep learning model to test prediction accuracy for recovering the ionization source.
- 일반주제명
- Astronomy
- 일반주제명
- Astrophysics
- 일반주제명
- Analytical chemistry
- 일반주제명
- Atmospheric sciences
- 키워드
- Galaxy evolution
- 키워드
- Metallicity
- 키워드
- Spectroscopy
- 키워드
- Star formation
- 기타저자
- University of Washington Astronomy
- 기본자료저록
- Dissertations Abstracts International. 86-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211152804
■006m o d
■007cr#unu||||||||
■020 ▼a9798384098027
■035 ▼a(MiAaPQ)AAI31556895
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a520
■1001 ▼aMcKay, Myles Anthony Aaron Alexander.
■24510▼aSub-Kpc Scale Analysis of Stellar Chemical Abundance and Star Formation Distributions in Nearby Galaxies
■260 ▼a[Sl]▼bUniversity of Washington▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a141 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-03, Section: B.
■500 ▼aAdvisor: Williams, Benjamin.
■5021 ▼aThesis (Ph.D.)--University of Washington, 2024.
■520 ▼aNearby galaxies provide critical insights into the complex chemical and stellar evolution of galaxies over cosmic time. High-quality resolved measurements provide insight into the intrinsic details of evolution when investigating the stellar population and chemical abundance in the bulge and disk regions. Furthermore, this allows us to compare the radial distribution properties of different galaxies to examine their recent evolution, especially among distinct galaxies. In this work, we utilize integral field unit spectroscopy (IFS) and high-resolution stellar photometry to examine the distribution of nearby galaxies. We first investigate the radial distribution of stellar population, star formation, and oxygen abundance in centrally star-forming galaxies with photometrically red disks, termed BreakBRD galaxies, compared to the parent sample using the MaNGA IFS survey. We find that the BreakBRD galaxies exhibit a significant positive stellar population age profile but show no significant variation in stellar mass surface density, star formation surface density, or oxygen abundance. We estimate the RGB metallicity gradient of M31's northern and southern halves from the PHAT and PHAST surveys, respectively, and find a shallow negative gradient in both halves. We interpret this result as indicating that the older RGB stellar population is well mixed throughout the disk. Additionally, we have developed a photometry pipeline for future flagship surveys and used high-quality MaNGA data with a high-performance deep learning model to test prediction accuracy for recovering the ionization source.
■590 ▼aSchool code: 0250.
■650 4▼aAstronomy
■650 4▼aAstrophysics
■650 4▼aAnalytical chemistry
■650 4▼aAtmospheric sciences
■653 ▼aGalaxy evolution
■653 ▼aMetallicity
■653 ▼aSpectroscopy
■653 ▼aStar formation
■653 ▼aStellar photometry
■653 ▼aStellar evolution
■690 ▼a0606
■690 ▼a0596
■690 ▼a0486
■690 ▼a0725
■71020▼aUniversity of Washington▼bAstronomy.
■7730 ▼tDissertations Abstracts International▼g86-03B.
■790 ▼a0250
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163871▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
