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Anti-Anthropic Solutions to the Cosmic Coincidence Problem
Joseph M. Fedrow, Kim Griest
A cosmological constant fits all current dark energy data, but requires two extreme fine tunings, both of which are currently explained by anthropic arguments. Here we discuss anti…
Experimental Limits on Primordial Black Hole Dark Matter from the First Two Years of Kepler Data
Kim Griest, Agnieszka M. Cieplak, Matthew J. Lehner
We present the analysis on our new limits of the dark matter (DM) halo consisting of primordial black holes (PBHs) or massive compact halo objects (MACHOs). We present a search of…
Addressing Decadal Survey Science through Community Access to Highly Multiplexed Spectroscopy with BigBOSS on the KPNO Mayall Telescope
Caty Pilachowski, Carles Badenes, Stephen Bailey +87
This document summarizes the results of a community-based discussion of the potential science impact of the Mayall+BigBOSS highly multiplexed multi-object spectroscopic capability.…
Improved Theoretical Predictions of Microlensing Rates for the Detection of Primordial Black Hole Dark Matter
Agnieszka M. Cieplak, Kim Griest
Primordial Black Holes (PBHs) remain a Dark Matter (DM) candidate of the Standard Model of Particle Physics. Previously, we proposed a new method of constraining the remaining PBH…
Microlensing of Kepler Stars as a Method of Detecting Primordial Black Hole Dark Matter
Kim Griest, Matthew J. Lehner, Agnieszka M. Cieplak +1
If the Dark Matter consists of primordial black holes (PBHs), we show that gravitational lensing of stars being monitored by NASA's Kepler search for extra-solar planets can cause…
Wavelength Accuracy of the Keck HIRES Spectrograph and Measuring Changes in the Fine Structure Constant
Kim Griest, Jonathan B. Whitmore, Arthur M. Wolfe +3
We report on an attempt to accurately wavelength calibrate four nights of data taken with the Keck HIRES spectrograph on QSO PHL957, for the purpose of determining whether the fine…