Details

Autor(en) / Beteiligte

• Chou, Aaron S.
• Gustafson, Richard
• Hogan, Craig
• Kamai, Brittany
• Kwon, Ohkyung
• Lanza, Robert
• Larson, Shane L.
• McCuller, Lee
• Meyer, Stephan S.
• Richardson, Jonathan
• Stoughton, Chris
• Tomlin, Raymond
• Weiss, Rainer

Titel

MHz gravitational wave constraints with decameter Michelson interferometers

Ist Teil von

• Physical review. D, 2017-03, Vol.95 (6), Article 063002

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2017

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A new detector, the Fermilab Holometer, consists of separate yet identical 39-meter Michelson interferometers. Strain sensitivity achieved is better than 10−21/Hz between 1 to 13 MHz from a 130-h data set. This measurement exceeds the sensitivity and frequency range made from previous high frequency gravitational wave experiments by many orders of magnitude. Constraints are placed on a stochastic background at 382 Hz resolution. The 3σ upper limit on ΩGW, the gravitational wave energy density normalized to the closure density, ranges from 5.6×1012 at 1 MHz to 8.4×1015 at 13 MHz. Another result from the same data set is a search for nearby primordial black hole binaries (PBHB). There are no detectable monochromatic PBHBs in the mass range 0.83–3.5×1021 g between the Earth and the Moon. Projections for a chirp search with the same data set increase the mass range to 0.59−2.5×1025 g and distances out to Jupiter. This result presents a new method for placing limits on a poorly constrained mass range of primordial black holes. Additionally, solar system searches for PBHBs place limits on their contribution to the total dark matter fraction.