The recent Advanced LIGO detections of coalescing black hole binaries (BHBs) imply a large population of such systems emitting at milli-Hz frequencies, accessible to the Laser Interferometer Space Antenna (LISA). We show that these systems provide a new class of cosmological standard sirens. Direct LISA luminosity distance -Dl - measurements, combined with the inhomogeneous redshift - z - distribution of possible host galaxies provide an effective way to populate the Dl-z diagram at z < 0.1, thus allowing a precise local measurement of the Hubble expansion rate. To be effective, the method requires a sufficiently precise LISA distance determination and sky localization of a sizeable number of BHBs, which is best achieved for a six-link detector configuration. We find that, for a BHB population consistent with current fiducial LIGO rates, the Hubble constant H0 can be determined at the ~5 per cent and ~2 per cent level (68 per cent confidence), assuming two and five million kilometre armlength, respectively.

Pozzo, W., Sesana, A., Klein, A. (2018). Stellar binary black holes in the LISA band: A new class of standard sirens. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 475(3), 3485-3492 [10.1093/mnras/sty057].

Stellar binary black holes in the LISA band: A new class of standard sirens

Sesana A.;
2018

Abstract

The recent Advanced LIGO detections of coalescing black hole binaries (BHBs) imply a large population of such systems emitting at milli-Hz frequencies, accessible to the Laser Interferometer Space Antenna (LISA). We show that these systems provide a new class of cosmological standard sirens. Direct LISA luminosity distance -Dl - measurements, combined with the inhomogeneous redshift - z - distribution of possible host galaxies provide an effective way to populate the Dl-z diagram at z < 0.1, thus allowing a precise local measurement of the Hubble expansion rate. To be effective, the method requires a sufficiently precise LISA distance determination and sky localization of a sizeable number of BHBs, which is best achieved for a six-link detector configuration. We find that, for a BHB population consistent with current fiducial LIGO rates, the Hubble constant H0 can be determined at the ~5 per cent and ~2 per cent level (68 per cent confidence), assuming two and five million kilometre armlength, respectively.
Articolo in rivista - Articolo scientifico
Black hole physics; Gravitational waves
English
2018
475
3
3485
3492
none
Pozzo, W., Sesana, A., Klein, A. (2018). Stellar binary black holes in the LISA band: A new class of standard sirens. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 475(3), 3485-3492 [10.1093/mnras/sty057].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/290667
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