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- Institute for Advanced StudyUS129 papers
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11 papers · 1 filter
Challenges and Opportunities for time-delay cosmography with multi-messenger gravitational lensing
Simon Birrer, Graham P. Smith, Anowar J. Shajib +2
Strong gravitational lensing of variable sources, such as quasars or supernovae, can be used to constrain cosmological parameters through a technique known as "time-delay cosmograp…
Mitigation of nonlinear galaxy bias with a theoretical-error likelihood
Abdias Aires, Nickolas Kokron, Rogerio Rosenfeld +2
Stage-IV galaxy surveys will measure correlations at small cosmological scales with high signal-to-noise ratio. One of the main challenges of extracting information from small scal…
Aemulus : Precision halo mass functions in wCDM cosmologies
Delon Shen, Nickolas Kokron, Joseph DeRose +4
Precise and accurate predictions of the halo mass function for cluster mass scales in cosmologies are crucial for extracting robust and unbiased cosmological informat…
Constraining gravity with a new precision estimator using Planck + SDSS BOSS
Lukas Wenzl, Rachel Bean, Shi-Fan Chen +7
The statistic is a discriminating probe of gravity developed to test the prediction of general relativity (GR) for the relation between gravitational potential and clustering…
Anisotropic strong lensing as a probe of dark matter self-interactions
Birendra Dhanasingham, Francis-Yan Cyr-Racine, Charlie Mace +2
Galaxy-scale strongly lensed systems have been shown to provide a unique technique for exploring the underlying physics of dark matter at sub-galactic scales. In the past, much att…
Constraining Single-Field Inflation with MegaMapper
Giovanni Cabass, Mikhail M. Ivanov, Oliver H. E. Philcox +2
We forecast the constraints on single-field inflation from the bispectrum of future high-redshift surveys such as MegaMapper. Considering non-local primordial non-Gaussianity (NLPN…