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The irreducible mass and the horizon area of LIGO’s black holes

Gerosa, Davide and Fabbri, Cecilia Maria and Sperhake, Ulrich (2022) The irreducible mass and the horizon area of LIGO’s black holes. Classical and Quantum Gravity, 39 (17). Art. No. 175008. ISSN 0264-9381. doi:10.1088/1361-6382/ac8332. https://resolver.caltech.edu/CaltechAUTHORS:20220822-480834500

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Abstract

The mass of a Kerr black hole (BH) can be separated into irreducible and rotational components—the former is a lower limit to the energy that cannot be possibly extracted from the event horizon and is related to its area. Here we compute the irreducible masses of the stellar-mass BHs observed by gravitational-wave interferometers LIGO and Virgo. Using single-event data, we present a re-parameterization of the posterior distribution that explicitly highlights the irreducible and rotational contributions to the total energy. We exploit the area law to rank the black-hole mergers observed to date according to their irreversibility, thus providing a guide to selecting events for targeted tests of general relativity. Using population fits, we compute the rate by which the total area of black-hole horizons increases due to the observable mergers.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1088/1361-6382/ac8332DOIArticle
ORCID:
AuthorORCID
Gerosa, Davide0000-0002-0933-3579
Fabbri, Cecilia Maria0000-0001-9453-4836
Sperhake, Ulrich0000-0002-3134-7088
Alternate Title:The irreducible mass of LIGO's black holes
Additional Information:We thank Matthew Mould and Matteo Bonetti for discussions. We thank Maya Fishbach for sharing her code to sample ppop. DG and CMF are supported by European Union’s H2020 ERC Starting Grant No. 945155-GWmining, Cariplo Foundation Grant No. 2021-0555, and Leverhulme Trust Grant No. RPG-2019-350. US is supported by STFC Research Grant Nos. ST/V005669/1 and ST/W001667/1, DiRAC project ACT284, funded by STFC Grants ST/P002307/1, ST/R002452/1 and ST/R00689X/1, and NSF-XSEDE Grant No. PHY-090003. Computational work was performed at CINECA with allocations through INFN, Bicocca, and ISCRA Type-B project HP10BEQ9JB, as well as at SDSC Expanse, TACC Stampede, the Cambridge Service for Data Driven Discovery (CSD3) system, and the Maryland Advanced Research Computing Center (MARCC).
Group:TAPIR
Funders:
Funding AgencyGrant Number
European Research Council (ERC)945155
Fondazione Cariplo2021-0555
Leverhulme TrustRPG-2019-350
Science and Technology Facilities Council (STFC)ST/V005669/1
Science and Technology Facilities Council (STFC)ST/W001667/1
Science and Technology Facilities Council (STFC)ST/P002307/1
Science and Technology Facilities Council (STFC)ST/R002452/1
Science and Technology Facilities Council (STFC)ST/R00689X/1
NSFPHY-090003
Issue or Number:17
DOI:10.1088/1361-6382/ac8332
Record Number:CaltechAUTHORS:20220822-480834500
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20220822-480834500
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:116374
Collection:CaltechAUTHORS
Deposited By: Melissa Ray
Deposited On:23 Aug 2022 17:49
Last Modified:24 Aug 2022 14:02

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