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Validation and Testing of the Simons Observatory Large Aperture Telescope and Data Reduction Pipeline
Validation and Testing of the Simons Observatory Large Aperture Telescope and Data Reducti...
Validation and Testing of the Simons Observatory Large Aperture Telescope and Data Reduction Pipeline

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20250211151323
ISBN  
9798382834344
DDC  
523
저자명  
Bhandarkar, Tanay.
서명/저자  
Validation and Testing of the Simons Observatory Large Aperture Telescope and Data Reduction Pipeline
발행사항  
[Sl] : University of Pennsylvania, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
182 p
주기사항  
Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
주기사항  
Advisor: Devlin, Mark J.
학위논문주기  
Thesis (Ph.D.)--University of Pennsylvania, 2024.
초록/해제  
요약The advancement of theories of modern cosmology, such as Λ-CDM, is dependent on high precision measurements of the cosmic microwave background (CMB). Several generations of CMB experiments have sought to advance our understanding of cosmology by improving both instrument sensitivity and resolution. The Simons Observatory (SO) is an upcoming CMB survey, consisting of six Small Aperture Telescopes (SATs) and one Large Aperture Telescope (LAT). While the SATs will focus on mapping the divergence-free polarized CMB signal on large scales, the LAT will produce arcminute resolution CMB temperature and polarization maps at an unprecedented sensitivity. The Large Aperture Telescope Receiver (LATR) is a sub-kelvin cryostat that will occupy the focal plan of the LAT with 60,000 transition edge sensors. This volume of detectors will enable the production of deep CMB temperature maps, but also presents a novel data management problem. Handling all the data that is produced by the LAT requires a robust and automated data reduction pipeline. This pipeline will need to be capable of applying data cleaning techniques, such as glitch detection, time-ordered data detrending, and common mode subtraction across thousands of detector time streams. With the cleaned data, the pipeline will also produce science quality maps, source catalogs, power spectra and much more. In this work, we will describe the efforts to validate the LATR's cryogenic, mechanical, detector and readout systems, as well as detail the integration of the receiver and telescope. We will also show the work done on the data reduction pipeline, and demonstrate how it will be prepared to handle the data recorded by the LAT, once it comes online. We provide an overview of the SO data reduction pipeline, and describe the pipeline testing efforts on simulated and archival CMB data.
일반주제명  
Astrophysics
일반주제명  
Physics
일반주제명  
Astronomy
키워드  
Large Aperture Telescope
키워드  
Cosmic microwave background
키워드  
Simons Observatory
키워드  
Power spectra
기타저자  
University of Pennsylvania Physics and Astronomy
기본자료저록  
Dissertations Abstracts International. 85-12B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■1001  ▼aBhandarkar,  Tanay.
■24510▼aValidation  and  Testing  of  the  Simons  Observatory  Large  Aperture  Telescope  and  Data  Reduction  Pipeline
■260    ▼a[Sl]▼bUniversity  of  Pennsylvania▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a182  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-12,  Section:  B.
■500    ▼aAdvisor:  Devlin,  Mark  J.
■5021  ▼aThesis  (Ph.D.)--University  of  Pennsylvania,  2024.
■520    ▼aThe  advancement  of  theories  of  modern  cosmology,  such  as  Λ-CDM,  is  dependent  on  high  precision  measurements  of  the  cosmic  microwave  background  (CMB).  Several  generations  of  CMB  experiments  have  sought  to  advance  our  understanding  of  cosmology  by  improving  both  instrument  sensitivity  and  resolution.  The  Simons  Observatory  (SO)  is  an  upcoming  CMB  survey,  consisting  of  six  Small  Aperture  Telescopes  (SATs)  and  one  Large  Aperture  Telescope  (LAT).  While  the  SATs  will  focus  on  mapping  the  divergence-free  polarized  CMB  signal  on  large  scales,  the  LAT  will  produce  arcminute  resolution  CMB  temperature  and  polarization  maps  at  an  unprecedented  sensitivity.  The  Large  Aperture  Telescope  Receiver  (LATR)  is  a  sub-kelvin  cryostat  that  will  occupy  the  focal  plan  of  the  LAT  with  60,000  transition  edge  sensors.  This  volume  of  detectors  will  enable  the  production  of  deep  CMB  temperature  maps,  but  also  presents  a  novel  data  management  problem.  Handling  all  the  data  that  is  produced  by  the  LAT  requires  a  robust  and  automated  data  reduction  pipeline.  This  pipeline  will  need  to  be  capable  of  applying  data  cleaning  techniques,  such  as  glitch  detection,  time-ordered  data  detrending,  and  common  mode  subtraction  across  thousands  of  detector  time  streams.  With  the  cleaned  data,  the  pipeline  will  also  produce  science  quality  maps,  source  catalogs,  power  spectra  and  much  more.  In  this  work,  we  will  describe  the  efforts  to  validate  the  LATR's  cryogenic,  mechanical,  detector  and  readout  systems,  as  well  as  detail  the  integration  of  the  receiver  and  telescope.  We  will  also  show  the  work  done  on  the  data  reduction  pipeline,  and  demonstrate  how  it  will  be  prepared  to  handle  the  data  recorded  by  the  LAT,  once  it  comes  online.  We  provide  an  overview  of  the  SO  data  reduction  pipeline,  and  describe  the  pipeline  testing  efforts  on  simulated  and  archival  CMB  data.
■590    ▼aSchool  code:  0175.
■650  4▼aAstrophysics
■650  4▼aPhysics
■650  4▼aAstronomy
■653    ▼aLarge  Aperture  Telescope
■653    ▼aCosmic  microwave  background
■653    ▼aSimons  Observatory
■653    ▼aPower  spectra
■690    ▼a0596
■690    ▼a0606
■690    ▼a0605
■71020▼aUniversity  of  Pennsylvania▼bPhysics  and  Astronomy.
■7730  ▼tDissertations  Abstracts  International▼g85-12B.
■790    ▼a0175
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17161194▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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