337 citations · 3.2k across the 73 of their papers we have counts for
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The Proper Motion of Strongly Lensed Binary Neutron Star Mergers in LIGO/Virgo/Kagra can be Constrained by Measuring Doppler Induced Gravitational Wave Dephasing
Lorenz Zwick, Johan Samsing
Strongly lensed binary neutron star (NS-NS) mergers are expected to be observed once LIGO/Virgo/Kagra reaches the planned A+ or proposed A\# sensitivity. We demonstrate that the re…
New Constraints on the Early Expansion History
Alireza Hojjati, Eric V. Linder, Johan Samsing
Cosmic microwave background measurements have pushed to higher resolution, lower noise, and more sky coverage. These data enable a unique test of the early universe's expansion rat…
Power Spectrum Precision for Redshift Space Distortions
Eric V. Linder, Johan Samsing
Redshift space distortions in galaxy clustering offer a promising technique for probing the growth rate of structure and testing dark energy properties and gravity. We consider the…
Model Independent Early Expansion History and Dark Energy
Johan Samsing, Eric V. Linder, Tristan L. Smith
We examine model independent constraints on the high redshift and prerecombination expansion history from cosmic microwave background observations, using a combination of principal…
Measuring the 3D shape of X-ray clusters
Johan Samsing, Andreas Skielboe, Steen H. Hansen
Observations and numerical simulations of galaxy clusters strongly indicate that the hot intracluster x-ray emitting gas is not spherically symmetric. In many earlier studies spher…
Generating and Analyzing Constrained Dark Energy Equations of State and Systematics Functions
Johan Samsing, Eric V. Linder
Some functions entering cosmological analysis, such as the dark energy equation of state or systematic uncertainties, are unknown functions of redshift. To include them without ass…