581 citations · 5.9k across the 106 of their papers we have counts for
34 papers · 1 filter
Ultra Long-Term Cosmology and Astrophysics
Robert J. Scherrer, Abraham Loeb
We examine astronomical observations that would be achievable over a future timeline corresponding to the documented history of human civilization so far, years. We exa…
How Slowly can the Early Universe Expand?
Robert J. Scherrer
When the expansion of the universe is dominated by a perfect fluid with equation of state parameter and a sound speed satisfying , the Hubble parameter $…
Evolution of decaying particles and decay products in various scenarios for the future expansion of the universe
Cameron E. Norton, Robert J. Scherrer
We examine nonrelativistic particles that decay into relativistic products in big rip, little rip, and pseudo-rip models for the future evolution of the universe. In contrast to de…
Does inhomogeneous big bang nucleosynthesis produce an inhomogeneous element distribution today?
Robert J. Scherrer
Inhomogeneous big bang nucleosynthesis (BBN) produces a spatially inhomogeneous distribution of element abundances at K, but subsequent element diffusion will tend to…
Antimatter as Macroscopic Dark Matter
Jagjit Singh Sidhu, Robert J. Scherrer, Glenn Starkman
Antimatter macroscopic dark matter (macros) refers to a generic class of antimatter dark matter candidates that interact with ordinary matter primarily through annihilation with la…
Death and Serious Injury by Dark Matter
Jagjit Singh Sidhu, Robert J Scherrer, Glenn Starkman
Macroscopic dark matter refers to a variety of dark matter candidates that would be expected to (elastically) scatter off of ordinary matter with a large geometric cross-section. A…