【学术视频】Recent Progress in Relativistic Astrophysics | E. Barausse

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图 | Enrico Barausse

题   目：Stochastic and resolvable gravitational waves from ultralight bosons

报告人：Enrico Barausse

单   位：Scuola Internazionale Superiore di Studi Advanzati

时   间：2019-05-08

地   点：复旦大学

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报告提纲

• Ultralight bosons can induce superradiant instabilities in spinning black holes, tapping their rotational energy to trigger the growth of a bosonic condensate.

• Boson condensates emit almost monochromatic GWs

• GWs are LISA/LIGO band if boson's Compton wavelength is Gm/km scale

• Main observable is stochastic background, but resolved sources and Regge plane "hole" also possible

• LIGO rules out already masses~a few x 10^-12 eV, LISA will extend to~10^-18eV

• Similar bounds on BH mimickers (and possibly Lorentz symmetry) from stochastic background
  

个人简介

Enrico Barausse, Associate professor at the SISSA, Trieste, Italy. Research interests: 1. The astrophysics of massive black-hole binaries. 2. Testing General relativity with gravitational observations. 3. Gravitational-wave astronomy.

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