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Looking From the Inside: Tomography of the Solar Corona With the Wide-Field Imager for Parker Solar Probe
Looking From the Inside: Tomography of the Solar Corona With the Wide-Field Imager for Par...
Looking From the Inside: Tomography of the Solar Corona With the Wide-Field Imager for Parker Solar Probe

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202105307
ISBN  
9798273302419
DDC  
523
저자명  
Kenny, Kenny Noel.
서명/저자  
Looking From the Inside: Tomography of the Solar Corona With the Wide-Field Imager for Parker Solar Probe
발행사항  
[Sl] : University of Colorado at Boulder, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
165 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-07, Section: B.
주기사항  
Advisor: DeForest, Craig.
학위논문주기  
Thesis (Ph.D.)--University of Colorado at Boulder, 2025.
초록/해제  
요약We present a new technique to tomographically reconstruct the density distribution of the solar corona and solar wind using near-perihelion data from the Wide-field Imager for Parker Solar Probe (WISPR). This technique, like traditional solar corona tomography methods, uses a set of different viewing angles to recover an additional dimension of information. However, unlike traditional tomography techniques, this method relies on the motion of the spacecraft -- Parker Solar Probe (PSP) -- to provide the set of viewing angles. Over the course of four chapters, we progress from an initial analytical inversion approach applied to a synthetic dataset, to a more robust `synthetic' inversion approach applied to real data from two different solar encounters. A change-of-basis operation via simple projection enables us to determine the model parameters that best support the features in the data. We also explore an application of this tool to coronal Faraday rotation experiments, specifically the determination of plasma density variations along the radio lines of sight. While this technique is not yet robust nor validated enough to yield new results about the structures themselves, it can provide complementary information to other observations. Finally, we have demonstrated that a tool like this has the potential to elucidate large-scale morphology and small-scale structure in the corona in the vicinity of PSP near perihelion passes.
일반주제명  
Astrophysics
일반주제명  
Remote sensing
일반주제명  
Astronomy
일반주제명  
Planetology
키워드  
Heliophysics
키워드  
Optical imaging
키워드  
Solar corona
키워드  
Solar wind
키워드  
White-light tomography
기타저자  
University of Colorado at Boulder Astrophysical and Planetary Sciences
기본자료저록  
Dissertations Abstracts International. 87-07B.
전자적 위치 및 접속  
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MARC

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■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a523
■1001  ▼aKenny,  Kenny  Noel.
■24510▼aLooking  From  the  Inside:  Tomography  of  the  Solar  Corona  With  the  Wide-Field  Imager  for  Parker  Solar  Probe
■260    ▼a[Sl]▼bUniversity  of  Colorado  at  Boulder▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a165  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-07,  Section:  B.
■500    ▼aAdvisor:  DeForest,  Craig.
■5021  ▼aThesis  (Ph.D.)--University  of  Colorado  at  Boulder,  2025.
■520    ▼aWe  present  a  new  technique  to  tomographically  reconstruct  the  density  distribution  of  the  solar  corona  and  solar  wind  using  near-perihelion  data  from  the  Wide-field  Imager  for  Parker  Solar  Probe  (WISPR).  This  technique,  like  traditional  solar  corona  tomography  methods,  uses  a  set  of  different  viewing  angles  to  recover  an  additional  dimension  of  information.  However,  unlike  traditional  tomography  techniques,  this  method  relies  on  the  motion  of  the  spacecraft  --  Parker  Solar  Probe  (PSP)  --  to  provide  the  set  of  viewing  angles.  Over  the  course  of  four  chapters,  we  progress  from  an  initial  analytical  inversion  approach  applied  to  a  synthetic  dataset,  to  a  more  robust  `synthetic'  inversion  approach  applied  to  real  data  from  two  different  solar  encounters.  A  change-of-basis  operation  via  simple  projection  enables  us  to  determine  the  model  parameters  that  best  support  the  features  in  the  data.  We  also  explore  an  application  of  this  tool  to  coronal  Faraday  rotation  experiments,  specifically  the  determination  of  plasma  density  variations  along  the  radio  lines  of  sight.  While  this  technique  is  not  yet  robust  nor  validated  enough  to  yield  new  results  about  the  structures  themselves,  it  can  provide  complementary  information  to  other  observations.  Finally,  we  have  demonstrated  that  a  tool  like  this  has  the  potential  to  elucidate  large-scale  morphology  and  small-scale  structure  in  the  corona  in  the  vicinity  of  PSP  near  perihelion  passes.
■590    ▼aSchool  code:  0051.
■650  4▼aAstrophysics
■650  4▼aRemote  sensing
■650  4▼aAstronomy
■650  4▼aPlanetology
■653    ▼aHeliophysics
■653    ▼aOptical  imaging
■653    ▼aSolar  corona
■653    ▼aSolar  wind
■653    ▼aWhite-light  tomography
■690    ▼a0596
■690    ▼a0799
■690    ▼a0606
■690    ▼a0590
■71020▼aUniversity  of  Colorado  at  Boulder▼bAstrophysical  and  Planetary  Sciences.
■7730  ▼tDissertations  Abstracts  International▼g87-07B.
■790    ▼a0051
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360120▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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