Gravitational wave astronomy and cosmology
Name
Hughes_Gravitational wave.pdf
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383.99 KB
Format
Adobe PDF
Checksum (MD5)
b7413fe2d5e0b1d8a19848943c04f0b2
Author(s)
Hughes, Scott A
Date Issued
October 2014
Journal
Physics of the Dark Universe
Publisher
Elsevier
Citation
Hughes, Scott A. “Gravitational Wave Astronomy and Cosmology.” Physics of the Dark Universe 4 (September 2014): 86–91.
Version
Final published version
Abstract
The first direct observation of gravitational waves’ action upon matter has recently been reported by the BICEP2 experiment. Advanced ground-based gravitational-wave detectors are being installed. They will soon be commissioned, and then begin searches for high-frequency gravitational waves at a sensitivity level that is widely expected to reach events involving compact objects like stellar mass black holes and neutron stars. Pulsar timing arrays continue to improve the bounds on gravitational waves at nanohertz frequencies, and may detect a signal on roughly the same timescale as ground-based detectors. The science case for space-based interferometers targeting millihertz sources is very strong. The decade of gravitational-wave discovery is poised to begin. In this writeup of a talk given at the 2013 TAUP conference, we will briefly review the physics of gravitational waves and gravitational-wave detectors, and then discuss the promise of these measurements for making cosmological measurements in the near future.
MIT Department
Massachusetts Institute of Technology. Department of Physics
MIT Kavli Institute for Astrophysics and Space Research
Terms of Use
Creative Commons Attribution-NonCommercial-No Derivative Works 3.0 Unported
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/j.dark.2014.10.003
