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ETD Abstract Container

Abstract Header

ILC Analysis of BICEP2 and Keck Array CMB Polarization Data through the 2015 Observing Season

Hand, Emma
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1695720071766934

Abstract Details

2023, PhD, University of Cincinnati, Arts and Sciences: Physics.
The cosmic microwave background (CMB) is a snapshot of the universe at recombination, the moment when the universe became transparent. Understanding the CMB could allow us to constrain or rule out aspects of inflation theory, which suggests that the Universe underwent a period of rapid expansion mere moments after the Big Bang. Specifically, we hope to detect primordial gravitational waves (PGW), an as yet unobserved phenomenon predicted by many inflationary models. BICEP/Keck is an experiment based at the South Pole with telescopes that are specified to observe B-mode polarization patterns caused by PGW at microwave wavelengths. The tensor-to-scalar ratio r is a parameter which if constrained could provide indirect evidence of PGWs. Presented is the work I have done in an internal linear combination (ILC) component separation method to separate the CMB signal from galactic foregrounds while minimizing noise, and the likelihood analysis I performed with the ILC results in an effort to constrain r.
Colin Bischoff, Ph.D. (Committee Chair)
L. C. R. Wijewardhana, Ph.D. (Committee Member)
Kay Kinoshita, Ph.D. (Committee Member)
Adam Aurisano, Ph.D. (Committee Member)
165 p.
Astrophysics
Cosmic Microwave Background; Likelihood; Internal Linear Combination; Inflation; Foregrounds; ILC

Recommended Citations

Citations

  • Hand, E. (2023). ILC Analysis of BICEP2 and Keck Array CMB Polarization Data through the 2015 Observing Season [Doctoral dissertation, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1695720071766934

    APA Style (7th edition)

  • Hand, Emma. ILC Analysis of BICEP2 and Keck Array CMB Polarization Data through the 2015 Observing Season. 2023. University of Cincinnati, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1695720071766934.

    MLA Style (8th edition)

  • Hand, Emma. "ILC Analysis of BICEP2 and Keck Array CMB Polarization Data through the 2015 Observing Season." Doctoral dissertation, University of Cincinnati, 2023. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1695720071766934

    Chicago Manual of Style (17th edition)

ucin1695720071766934
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This open access ETD is published by University of Cincinnati and OhioLINK.