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The limits of astrophysics with gravitational wave backgrounds
| Content Provider | Semantic Scholar |
|---|---|
| Author | Callister, T. Brian Sammut, Letizia Thrane, E. H. Qiu, Shi Mandel, Ilya |
| Copyright Year | 2016 |
| Abstract | The recent Advanced LIGO detection of gravitational waves from the binary black hole GW150914 suggests there is a large population of merging binary black holes in the Universe. Although most are too distant to be individually resolved by advanced detectors, the superposition of gravitational waves from many unresolvable binaries is expected to create an astrophysical stochastic background. Recent results from the LIGO/Virgo collaboration show that this astrophysical background is within reach of Advanced LIGO. In principle, the binary black hole background encodes interesting astrophysical properties, such as the mass distribution and redshift distribution of distant binaries. However, we show that this information will be difficult to extract with the current configuration of advanced detectors (and using current data analysis tools). Additionally, the binary black hole background also constitutes a foreground that limits the ability of advanced detectors to observe other interesting stochastic background signals, for example from cosmic strings or phase transitions in the early Universe. We quantify this effect. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://authors.library.caltech.edu/69453/2/1604.02513v1.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Black Hole COSMIC Detectors Phase Transition Quantum superposition Redshift Virgo |
| Content Type | Text |
| Resource Type | Article |
