Astrophysics I

Presentations

• Constraints on axion-like polarization oscillations in the cosmic microwave background with POLARBEAR

  ORAL

  Oct. 6, 2023, 4:30 PM – Oct. 6, 2023, 4:54 PM

  Publication: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.108.043017

  Presenters

  • Jake Spisak

    UC San Diego

  Authors

  • Jake Spisak

    UC San Diego

  View abstract →

• Sterile Neutrinos and Warm Dark Matter in the Era of Precision Cosmology

  ORAL

  Oct. 6, 2023, 4:54 PM – Oct. 6, 2023, 5:06 PM

  Publication: Vogel, C. M., & Abazajian, K. N. (2023). Entering the era of measuring sub-Galactic dark matter structure: Accurate transfer functions for axino, gravitino, and sterile neutrino thermal warm dark matter. Physical Review D, 108(4), 043520.

  Presenters

  • Cannon Vogel

    University of California, Irvine

  Authors

  • Cannon Vogel

    University of California, Irvine

  • Kevork N Abazajian

    University of California Irvine (UCI), University of California, Irvine

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• Seeking Multiwavelength Signs of Rapid Accretion in Active Galactic Nuclei

  ORAL

  Oct. 6, 2023, 5:06 PM – Oct. 6, 2023, 5:30 PM

  Publication: Paul, J. D., Plotkin, R. M., et al. "Connecting Low- and High-redshift Weak Emission-line Quasars via Hubble Space Telescope Spectroscopy of Lyα Emission." 2022, ApJ, 929, 78. DOI: 10.3847/1538-4357/ac5bd6<br><br>Paul, J. D., Plotkin, R. M., et al. "Radio Scrutiny of the X-ray-Weak Tail of Low-mass Active Galactic Nuclei" (working title). 2023, in prep.

  Presenters

  • Jeremiah D Paul

    University of Nevada, Reno

  Authors

  • Jeremiah D Paul

    University of Nevada, Reno

  • Richard M Plotkin

    University of Nevada, Reno

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• Using Stellar Streams to Probe the Shape of the Milky Way's Dark Matter Halo

  ORAL

  Oct. 6, 2023, 5:30 PM – Oct. 6, 2023, 5:42 PM

  Presenters

  • Nicholas P Inzunza

    University of California Los Angeles

  Authors

  • Nicholas P Inzunza

    University of California Los Angeles

  • Ana Bonaca

    Carnegie Institution for Science

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• Comparing Extreme Mass Ratio Inspiral model Fidelity and Signal-to-Noise Ratio Estimates for LISA

  ORAL

  Oct. 6, 2023, 5:42 PM – Oct. 6, 2023, 5:54 PM

  Publication: Developing Extreme Mass Ratio Inspiral Gravitational Waveforms with Eccentric Orbits and a Kerr Massive Black Holes (planned paper, master's thesis)

  Presenters

  • Joshua C Bardwell

    San Diego State University

  Authors

  • Joshua C Bardwell

    San Diego State University

  • Zachary Nasipak

    NASA Goddard Space Flight Center

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• Development of a Cryogenic Two-Stage HEMT Amplifier to Search for Dark Matter

  ORAL

  Oct. 6, 2023, 5:54 PM – Oct. 6, 2023, 6:06 PM

  Presenters

  • Ivar Rydstrom

    Santa Clara University

  Authors

  • Ivar Rydstrom

    Santa Clara University

  • Jadyn Anczarski

    Stanford University; SLAC National Accelerator Laboratory; Kavli Institute for Particle Astrophysics & Cosmology, Stanford University

  • Betty Young

    Santa Clara University

  • Arran T Phipps

    California State University, East Bay

  • Noah Kurinsky

    SLAC National Accelerator Laboratory; Kavli Institute for Particle Astrophysics & Cosmology, SLAC National Accelerator Laboratory

  • Zoe J Smith

    Stanford University; SLAC National Accelerator Laboratory; Kavli Institute for Particle Astrophysics & Cosmology, Stanford University

  • Caleb W Fink

    Los Alamos National Laboratory

  • Samuel L Watkins

    Los Alamos National Laboratory

  • Sukie Kevane

    Stanford University

  • Makar Dubovskov

    Santa Clara University

  View abstract →

• Multi-messenger Constraint of Hubble Constant H₀ with Tidal Disruption Events

  ORAL

  Oct. 6, 2023, 6:06 PM – Oct. 6, 2023, 6:18 PM

  Publication: https://doi.org/10.48550/arXiv.2301.08407

  Presenters

  • Thomas Hong Tsun Wong

    University of California, San Diego

  Authors

  • Thomas Hong Tsun Wong

    University of California, San Diego

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• General relativity can be amended by adding a spatial dimension equivalent to the other three. This would account for the illusion of dark energy. It may be a stepping stone towards the theory of everything where space is unified rather than general relativity and quantum mechanics.

  ORAL

  Oct. 6, 2023, 6:18 PM – Oct. 6, 2023, 6:30 PM

  Presenters

  • Frank S Hafner

    Naval Ocean Systems Center

  Authors

  • Frank S Hafner

    Naval Ocean Systems Center

  • Chad Q Martin

    HP

  View abstract →

• Solving the riddle: Visible in the lab but invisible in cosmology

  ORAL

  Oct. 6, 2023, 6:30 PM – Oct. 6, 2023, 6:42 PM

  Publication: Planned paper (panned submission to the arxiv 09/19/2023)

  Presenters

  • Helena Garcia Escudero

    University of California Irvine (UCI)

  Authors

  • Helena Garcia Escudero

    University of California Irvine (UCI)

  • Kevork N Abazajian

    University of California Irvine (UCI), University of California, Irvine

  View abstract →