PI: Peter Espenshade, Carnegie Mellon U., email@example.com
Address: Physics Department, 5032 Forbes Avenue, SMC 3943, Pittsburgh, PA 15289 United States
Title: Limits on the fractional abundance of primordial black holes using short timescale microlensing
Abstract: Dark matter is commonly identified with elementary particles. However, primordial black holes (PBHs) are viable candidates for dark matter as well (Hawkins 2011). I propose a survey of the Large Magellanic Cloud (LMC) in order to decrease the likelihood of PBH presence in the Galactic halo and thus decrease the likelihood of PBHs as dark matter. Surveys of this nature already exist, namely EROS and EROS-2. These surveys have utilized gravitational microlensing of massive compact halo objects (MACHOs) in order to constrain the upper bound fraction of the Galactic halo in PBHs. What sets this proposal apart from EROS and EROS-2 is that the 0.9-m telescope could utilize shorter image collecting intervals as well as an improved pixel scale in order to determine improved mass fraction constraints at lower masses. Such a constraint would further decrease the viability of PBHs as dark matter.
Program Type: Standard/Extragalactic
Run 1 (2017A): CT-0.9m/CFIM -- 5n on Feb 08 - Feb 12 2017
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360