Improved Treatment of Host-Galaxy Correlations in Cosmological Analyses With Type Ia Supernovae

Kavli Affiliate: Richard Kessler | First 5 Authors: Brodie Popovic, Dillon Brout, Richard Kessler, Dan Scolnic, Lisa Lu | Summary: Improving the use of Type Ia supernovae (SNIa) as standard candles requires a better approach to incorporate the relationship between SNIa and the properties of their host galaxies. Using a spectroscopically-confirmed sample of $sim$1600 SNIa, […]


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Measuring solar neutrinos over Gigayear timescales with Paleo Detectors

Kavli Affiliate: Shunsaku Horiuchi | First 5 Authors: Natalia Tapia Arellano, Shunsaku Horiuchi, , , | Summary: Measuring the solar neutrino flux over gigayear timescales could provide a new window to inform the Solar Standard Model as well as studies of the Earth’s long-term climate. We demonstrate the feasibility of measuring the time-evolution of the […]


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Substructure at High Speed I: Inferring the Escape Velocity in the Presence of Kinematic Substructure

Kavli Affiliate: Lina Necib | First 5 Authors: Lina Necib, Tongyan Lin, , , | Summary: The local escape velocity provides valuable inputs to the mass profile of the Galaxy, and requires understanding the tail of the stellar speed distribution. Following Leonard $&$ Tremaine (1990), various works have since modeled the tail of the stellar […]


Continue.. Substructure at High Speed I: Inferring the Escape Velocity in the Presence of Kinematic Substructure

“A more probable explanation” is still impossible to explain GN-z11-flash: in response to Steinhardt et al. (arXiv:2101.12738)

Kavli Affiliate: Linhua Jiang | First 5 Authors: Linhua Jiang, Shu Wang, Bing Zhang, Nobunari Kashikawa, Luis C. Ho | Summary: In Jiang et al. (2020), we reported a possible bright flash (hereafter GN-z11-flash) from a galaxy GN-z11 at z ~ 11. Recently, Steinhardt et al. (2021; arXiv:2101.12738) found 27 images with transient signals in […]


Continue.. “A more probable explanation” is still impossible to explain GN-z11-flash: in response to Steinhardt et al. (arXiv:2101.12738)

Cosmological cross-correlations and nearest neighbor distributions

Kavli Affiliate: Tom Abel | First 5 Authors: Arka Banerjee, Tom Abel, , , | Summary: Cross-correlations between datasets are used in many different contexts in cosmological analyses. Recently, $k$-Nearest Neighbor Cumulative Distribution Functions ($k{rm NN}$-${rm CDF}$) were shown to be sensitive probes of cosmological (auto) clustering. In this paper, we extend the framework of […]


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The wide-field infrared transient explorer (WINTER)

Kavli Affiliate: Gabor Furesz | First 5 Authors: Nathan P. Lourie, John W. Baker, Richard S. Burruss, Mark Egan, Gábor Fűrész | Summary: The Wide-Field Infrared Transient Explorer (WINTER) is a new infrared time-domain survey instrument which will be deployed on a dedicated 1 meter robotic telescope at Palomar Observatory. WINTER will perform a seeing-limited […]


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The wide-field infrared transient explorer (WINTER)

Kavli Affiliate: Nathan P. Lourie | First 5 Authors: Nathan P. Lourie, John W. Baker, Richard S. Burruss, Mark Egan, Gábor Fűrész | Summary: The Wide-Field Infrared Transient Explorer (WINTER) is a new infrared time-domain survey instrument which will be deployed on a dedicated 1 meter robotic telescope at Palomar Observatory. WINTER will perform a […]


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Delensing the CMB with the cosmic infrared background: the impact of foregrounds

Kavli Affiliate: Anthony Challinor | First 5 Authors: Antón Baleato Lizancos, Anthony Challinor, Blake D. Sherwin, Toshiya Namikawa, | Summary: The most promising avenue for detecting primordial gravitational waves from cosmic inflation is through measurements of degree-scale CMB $B$-mode polarisation. This approach must face the challenge posed by gravitational lensing of the CMB, which obscures […]


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Constraining reionization with the first measurement of the cross-correlation between the CMB optical-depth fluctuations and the Compton y-map

Kavli Affiliate: Toshiya Namikawa | First 5 Authors: Toshiya Namikawa, Anirban Roy, Blake D. Sherwin, Nicholas Battaglia, David N. Spergel | Summary: We propose a new reionization probe that uses cosmic microwave background (CMB) observations; the cross-correlation between fluctuations in the CMB optical depth which probes the integrated electron density, $deltatau$, and the Compton $y$-map […]


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A numerical study of observational systematic errors in lensing analysis of CMB polarization

Kavli Affiliate: Toshiya Namikawa | First 5 Authors: Ryo Nagata, Toshiya Namikawa, , , | Summary: Impacts of observational systematic errors on the lensing analysis of the cosmic microwave background (CMB) polarization are investigated by numerical simulations. We model errors of gain, angle, and pointing in observation of the CMB polarization and simulate polarization fields […]


Continue.. A numerical study of observational systematic errors in lensing analysis of CMB polarization