Standard siren cosmology with gravitational waves from binary black hole mergers in active galactic nuclei

Bom, C. R.; Palmese, A.

doi:10.1103/physrevd.110.083005

Phys. Rev. D

2024

DOI: 10.1103/physrevd.110.083005

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Standard siren cosmology with gravitational waves from binary black hole mergers in active galactic nuclei

C. R. Bom,

A. Palmese

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2024

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Cited by 2 publications

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A dark standard siren measurement of the Hubble constant following LIGO/Virgo/KAGRA O4a and previous runs

Bom,

Alfradique,

Palmese

et al. 2024

Monthly Notices of the Royal Astronomical Society

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We present a new constraint on the Hubble constant (H0) from the standard dark siren method using a sample of 5 well-covered gravitational waves (GW) alerts reported during the first part of the fourth LIGO/Virgo/KAGRA observing run and with 3 updated standard dark sirens from third observation run in combination the previous constraints from the first three runs. Our methodology relies on the galaxy catalogue method alone. We use a Deep Learning method to derive the full probability density estimation of photometric redshifts using the Legacy Survey catalogues. We add the constraints from well localized Binary Black Hole mergers to the sample of standard dark sirens analysed in our previous work. We combine the H0 posterior for 5 new standard sirens with other 10 previous events (using the most recent available data for the 5 novel events and updated 3 previous posteriors from O3), finding $H_0 = 70.4^{+13.6}_{-11.7}~{\rm km~s^{-1}~Mpc^{-1}}$ (68% Confidence interval) with the catalogue method only. This result represents an improvement of $\sim 23~{{\%}}$ comparing the new 15 dark siren constrain with the previous 10 dark siren constraint and a reduction in uncertainty of $\sim 40~{{\%}}$ from the combination of 15 dark and bright sirens compared with the GW170817 bright siren alone. The combination of dark and bright siren GW170817 with recent jet constraints yields H0 of $68.0^{+4.4}_{-3.8}~{\rm km~s^{-1}~Mpc^{-1}}$, a $\sim 6~{{\%}}$ precision from Standard Sirens, reducing the previous constraint uncertainty by $\sim 10~{{\%}}$ .

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A dark standard siren measurement of the Hubble constant following LIGO/Virgo/KAGRA O4a and previous runs

Bom,

Alfradique,

Palmese

et al. 2024

Monthly Notices of the Royal Astronomical Society

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Searching for electromagnetic emission in an AGN from the gravitational wave binary black hole merger candidate S230922g

Cabrera,

Palmese,

et al. 2024

Phys. Rev. D

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Standard siren cosmology with gravitational waves from binary black hole mergers in active galactic nuclei

Cited by 2 publications

References 62 publications

A dark standard siren measurement of the Hubble constant following LIGO/Virgo/KAGRA O4a and previous runs

A dark standard siren measurement of the Hubble constant following LIGO/Virgo/KAGRA O4a and previous runs

Searching for electromagnetic emission in an AGN from the gravitational wave binary black hole merger candidate S230922g

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