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Hydrodynamical + Thermochemical Modeling of the Planet Formation Process
Hydrodynamical + Thermochemical Modeling of the Planet Formation Process
Hydrodynamical + Thermochemical Modeling of the Planet Formation Process

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자료유형  
 학위논문 서양
최종처리일시  
20250211153011
ISBN  
9798384045519
DDC  
523
저자명  
Alarcon Pena, Felipe Mauricio.
서명/저자  
Hydrodynamical + Thermochemical Modeling of the Planet Formation Process
발행사항  
[Sl] : University of Michigan, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
207 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
주기사항  
Advisor: Bergin, Edwin Anthony.
학위논문주기  
Thesis (Ph.D.)--University of Michigan, 2024.
초록/해제  
요약Planets are born within young circumstellar disks that formed from the collapse of a centrally concentrated dense core within molecular clouds. It is during this gas-rich protoplanetary disk stage that gas giant planets capture the volatile-rich gaseous material that will be part of their atmospheres. Moreover, the physical state of protoplanetary disks is constantly evolving and these changes affect the chemistry of the disk and how planets form. Different chemical and physical processes take place in a protoplanetary disk during its evolution and the gap carved in it by a giant planet. These processes include grain evolution, photochemistry, sublimation and condensation of molecular species and active gas-phase chemistry. Current surveys of protoplanetary disks at high spatial resolution have shown that substructures in the dust continuum emission are frequent. The presence of substructures is usually linked to the presence of incipient and ongoing planet formation. Under this light, a range of studies have shown that the chemical compositions and abundance ratios around dynamical planet-forming regions are key for the evolution and components of planetary atmospheres. Furthermore, high spatial resolution observations of molecular line and dust continuum emission of protoplanetary disks provide us with an unprecedented benchmark to understand the physical and chemical evolution of the disk, enabling the testing of different model setups including the influence of protoplanets in their host disk. This thesis intends to push the knowledge about the chemical composition of the gas being fed into protoplanets through a theoretical approach. This knowledge is key in predicting the compositions of planetary atmospheres and their origins.Additionally, we aim to provide constraints to the community to understand the results of protoplanet-hunting campaigns in the infrared and millimeter, while optimizing the design of surveys with upcoming instruments. Enhancing the detection rate of protoplanets will significantly improve our knowledge of their growth and their dynamic interplay with the surrounding circumstellar disks.
일반주제명  
Astrophysics
일반주제명  
Astronomy
일반주제명  
Atmospheric chemistry
일반주제명  
Atmospheric sciences
키워드  
Planet formation
키워드  
Protoplanetary disks
키워드  
Molecular clouds
키워드  
Chemical composition
키워드  
Planetary atmospheres
기타저자  
University of Michigan Astronomy and Astrophysics
기본자료저록  
Dissertations Abstracts International. 86-04B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■020    ▼a9798384045519
■035    ▼a(MiAaPQ)AAI31631462
■035    ▼a(MiAaPQ)umichrackham005652
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a523
■1001  ▼aAlarcon  Pena,  Felipe  Mauricio.
■24510▼aHydrodynamical  +  Thermochemical  Modeling  of  the  Planet  Formation  Process
■260    ▼a[Sl]▼bUniversity  of  Michigan▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a207  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-04,  Section:  B.
■500    ▼aAdvisor:  Bergin,  Edwin  Anthony.
■5021  ▼aThesis  (Ph.D.)--University  of  Michigan,  2024.
■520    ▼aPlanets  are  born  within  young  circumstellar  disks  that  formed  from  the  collapse  of  a  centrally  concentrated  dense  core  within  molecular  clouds.  It  is  during  this  gas-rich  protoplanetary  disk  stage  that  gas  giant  planets  capture  the  volatile-rich  gaseous  material  that  will  be  part  of  their  atmospheres.  Moreover,  the  physical  state  of  protoplanetary  disks  is  constantly  evolving  and  these  changes  affect  the  chemistry  of  the  disk  and  how  planets  form.  Different  chemical  and  physical  processes  take  place  in  a  protoplanetary  disk  during  its  evolution  and  the  gap  carved  in  it  by  a  giant  planet.  These  processes  include  grain  evolution,  photochemistry,  sublimation  and  condensation  of  molecular  species  and  active  gas-phase  chemistry. Current  surveys  of  protoplanetary  disks  at  high  spatial  resolution  have  shown  that  substructures  in  the  dust  continuum  emission  are  frequent.  The  presence  of  substructures  is  usually  linked  to  the  presence  of  incipient  and  ongoing  planet  formation.  Under  this  light,  a  range  of  studies  have  shown  that  the  chemical  compositions  and  abundance  ratios  around  dynamical  planet-forming  regions  are  key  for  the  evolution  and  components  of  planetary  atmospheres.  Furthermore,  high  spatial  resolution  observations  of  molecular  line  and  dust  continuum  emission  of  protoplanetary  disks  provide  us  with  an  unprecedented  benchmark  to  understand  the  physical  and  chemical  evolution  of  the  disk,  enabling  the  testing  of  different  model  setups  including  the  influence  of  protoplanets  in  their  host  disk.  This  thesis  intends  to  push  the  knowledge  about  the  chemical  composition  of  the  gas  being  fed  into  protoplanets  through  a  theoretical  approach.  This  knowledge  is  key  in  predicting  the  compositions  of  planetary  atmospheres  and  their  origins.Additionally,  we  aim  to  provide  constraints  to  the  community  to  understand  the  results  of  protoplanet-hunting  campaigns  in  the  infrared  and  millimeter,  while  optimizing  the  design  of  surveys  with  upcoming  instruments.  Enhancing  the  detection  rate  of  protoplanets  will  significantly  improve  our  knowledge  of  their  growth  and  their  dynamic  interplay  with  the  surrounding  circumstellar  disks.
■590    ▼aSchool  code:  0127.
■650  4▼aAstrophysics
■650  4▼aAstronomy
■650  4▼aAtmospheric  chemistry
■650  4▼aAtmospheric  sciences
■653    ▼aPlanet  formation
■653    ▼aProtoplanetary  disks
■653    ▼aMolecular  clouds
■653    ▼aChemical  composition
■653    ▼aPlanetary  atmospheres
■690    ▼a0596
■690    ▼a0606
■690    ▼a0371
■690    ▼a0725
■71020▼aUniversity  of  Michigan▼bAstronomy  and  Astrophysics.
■7730  ▼tDissertations  Abstracts  International▼g86-04B.
■790    ▼a0127
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164513▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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