Detectability of gravitational waves from phase transitions

Kahniashvili, Tina და Kosowsky, Arthur და Gogoberidze, Grigol და Maravin, Yurii (2008) Detectability of gravitational waves from phase transitions. Physical Review D, 78.


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Gravitational waves potentially represent our only direct probe of the universe when it was less than one second old. In particular, first-order phase transitions in the early universe can generate a stochastic background of gravitational waves which may be detectable today. We briefly summarize the physical sources of gravitational radiation from phase transitions and present semianalytic expressions for the resulting gravitational wave spectra from three distinct realistic sources: bubble collisions, turbulent plasma motions, and inverse-cascade helical magnetohydrodynamic turbulence. Using phenomenological parameters to describe phase transition properties, we determine the region of parameter space for which gravitational waves can be detected by the proposed Laser Interferometer Space Antenna. The electroweak phase transition is detectable for a wide range of parameters.

ობიექტის ტიპი: სტატია
თემატიკა: Q Science > QB Astronomy
Q Science > QC Physics
განმათავსებელი მომხმარებელი: Prof. Tina Kahniashvili
განთავსების თარიღი: 30 იანვარი 2014 12:38
ბოლო ცვლილება: 27 მარტი 2015 07:04

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