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Connecting low-redshift LISA massive black hole mergers to the nHz stochastic gravitational wave background
Pulsar Timing Array (PTA) experiments worldwide recently reported evidence of a nHz stochastic gravitational wave background (sGWB) compatible with the existence of slowly inspiralling massive black hole (MBH) binaries (MBHBs). The shape of the signal contains valuable information about the evolutio...
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| Published in: | Astronomy and astrophysics (Berlin) 2024-06, Vol.686 |
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| Main Authors: | , , , , , , |
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| container_title | Astronomy and astrophysics (Berlin) |
| container_volume | 686 |
| creator | David Izquierdo-Villalba Sesana, Alberto Colpi, Monica Spinoso, Daniele Bonetti, Matteo Bonoli, Silvia Valiante, Rosa |
| description | Pulsar Timing Array (PTA) experiments worldwide recently reported evidence of a nHz stochastic gravitational wave background (sGWB) compatible with the existence of slowly inspiralling massive black hole (MBH) binaries (MBHBs). The shape of the signal contains valuable information about the evolution of $z |
| doi_str_mv | 10.1051/0004-6361/202449293 |
| format | article |
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We generate a population of MBHs compatible simultaneously with current electromagnetic and nHz sGWB constraints by including the possibility that, in favourable environments, MBHs can accrete gas beyond the Eddington limit. The predictions of this new model for the sGWB show that the global (integrated up to high-$z$) LISA detection rate is not significantly affected when compared to a fiducial model whose nHz sGWB signal is $ sim \,2$ times smaller. In both cases, the global rate yields sim $ and is dominated by systems of $ odot $. The main differences are limited to low-$z$ ($z<3$), high-mass ($ odot $) LISA MBHBs. The model compatible with the latest PTA results predicts up to $ sim \,1.6$ times more detections, with a rate of sim erg/s$. Hence, in case PTA results are confirmed and given the current MBH modelling, our findings suggest there will be higher chances to perform multimessenger studies with LISA MBHB than previously expected.</description><identifier>ISSN: 0004-6361</identifier><identifier>EISSN: 1432-0746</identifier><identifier>DOI: 10.1051/0004-6361/202449293</identifier><language>eng</language><publisher>Heidelberg: EDP Sciences</publisher><subject>Compatibility ; Evolution ; Galaxies ; Gravitational waves ; Pulsars ; Red shift</subject><ispartof>Astronomy and astrophysics (Berlin), 2024-06, Vol.686</ispartof><rights>2024. This work is licensed under https://creativecommons.org/licenses/by/4.0 (the “License”). Notwithstanding the ProQuest Terms and conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c207t-eb397184e726821d4effad8f56a2a93ab7777ae5c556f12b640501f4282ddd3b3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>David Izquierdo-Villalba</creatorcontrib><creatorcontrib>Sesana, Alberto</creatorcontrib><creatorcontrib>Colpi, Monica</creatorcontrib><creatorcontrib>Spinoso, Daniele</creatorcontrib><creatorcontrib>Bonetti, Matteo</creatorcontrib><creatorcontrib>Bonoli, Silvia</creatorcontrib><creatorcontrib>Valiante, Rosa</creatorcontrib><title>Connecting low-redshift LISA massive black hole mergers to the nHz stochastic gravitational wave background</title><title>Astronomy and astrophysics (Berlin)</title><description>Pulsar Timing Array (PTA) experiments worldwide recently reported evidence of a nHz stochastic gravitational wave background (sGWB) compatible with the existence of slowly inspiralling massive black hole (MBH) binaries (MBHBs). The shape of the signal contains valuable information about the evolution of $z<1$ MBHs above $ odot $, suggesting a faster dynamical evolution of MBHBs towards the gravitational-wave-driven inspiral or a larger MBH growth than usually assumed. In this work, we investigate if the nHz sGWB could also provide constraints on the population of merging lower-mass MBHBs ($ odot $) detectable by LISA. To this end, we use the L-Galaxies semi-analytical model applied to the Millennium suite of simulations.
We generate a population of MBHs compatible simultaneously with current electromagnetic and nHz sGWB constraints by including the possibility that, in favourable environments, MBHs can accrete gas beyond the Eddington limit. The predictions of this new model for the sGWB show that the global (integrated up to high-$z$) LISA detection rate is not significantly affected when compared to a fiducial model whose nHz sGWB signal is $ sim \,2$ times smaller. In both cases, the global rate yields sim $ and is dominated by systems of $ odot $. The main differences are limited to low-$z$ ($z<3$), high-mass ($ odot $) LISA MBHBs. The model compatible with the latest PTA results predicts up to $ sim \,1.6$ times more detections, with a rate of sim erg/s$. Hence, in case PTA results are confirmed and given the current MBH modelling, our findings suggest there will be higher chances to perform multimessenger studies with LISA MBHB than previously expected.</description><subject>Compatibility</subject><subject>Evolution</subject><subject>Galaxies</subject><subject>Gravitational waves</subject><subject>Pulsars</subject><subject>Red shift</subject><issn>0004-6361</issn><issn>1432-0746</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNo9kF1LwzAUhoMoOKe_wJuA13X5Tns5hrrBwAv1OqRt0mbrmplkG_rrbZns3LwceN7D4QHgEaNnjDieIYRYJqjAM4IIYwUp6BWYYEZJhiQT12ByIW7BXYybYSU4pxOwXfi-N1VyfQM7f8qCqWPrbILr1ccc7nSM7mhg2elqC1vfGbgzoTEhwuRhag3sl78wJl-1OiZXwSboo0s6Od_rDp702B2qTfCHvr4HN1Z30Tz85xR8vb58LpbZ-v1ttZivs4ogmTJT0kLinBlJRE5wzYy1us4tF5rogupSDqMNrzgXFpNSMMQRtozkpK5rWtIpeDrf3Qf_fTAxqY0_hOGhqCgSBS-k5Hig6Jmqgo8xGKv2we10-FEYqdGqGp2p0Zm6WKV_xRRq8A</recordid><startdate>20240612</startdate><enddate>20240612</enddate><creator>David Izquierdo-Villalba</creator><creator>Sesana, Alberto</creator><creator>Colpi, Monica</creator><creator>Spinoso, Daniele</creator><creator>Bonetti, Matteo</creator><creator>Bonoli, Silvia</creator><creator>Valiante, Rosa</creator><general>EDP Sciences</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20240612</creationdate><title>Connecting low-redshift LISA massive black hole mergers to the nHz stochastic gravitational wave background</title><author>David Izquierdo-Villalba ; Sesana, Alberto ; Colpi, Monica ; Spinoso, Daniele ; Bonetti, Matteo ; Bonoli, Silvia ; Valiante, Rosa</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c207t-eb397184e726821d4effad8f56a2a93ab7777ae5c556f12b640501f4282ddd3b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Compatibility</topic><topic>Evolution</topic><topic>Galaxies</topic><topic>Gravitational waves</topic><topic>Pulsars</topic><topic>Red shift</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>David Izquierdo-Villalba</creatorcontrib><creatorcontrib>Sesana, Alberto</creatorcontrib><creatorcontrib>Colpi, Monica</creatorcontrib><creatorcontrib>Spinoso, Daniele</creatorcontrib><creatorcontrib>Bonetti, Matteo</creatorcontrib><creatorcontrib>Bonoli, Silvia</creatorcontrib><creatorcontrib>Valiante, Rosa</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Astronomy and astrophysics (Berlin)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>David Izquierdo-Villalba</au><au>Sesana, Alberto</au><au>Colpi, Monica</au><au>Spinoso, Daniele</au><au>Bonetti, Matteo</au><au>Bonoli, Silvia</au><au>Valiante, Rosa</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Connecting low-redshift LISA massive black hole mergers to the nHz stochastic gravitational wave background</atitle><jtitle>Astronomy and astrophysics (Berlin)</jtitle><date>2024-06-12</date><risdate>2024</risdate><volume>686</volume><issn>0004-6361</issn><eissn>1432-0746</eissn><abstract>Pulsar Timing Array (PTA) experiments worldwide recently reported evidence of a nHz stochastic gravitational wave background (sGWB) compatible with the existence of slowly inspiralling massive black hole (MBH) binaries (MBHBs). The shape of the signal contains valuable information about the evolution of $z<1$ MBHs above $ odot $, suggesting a faster dynamical evolution of MBHBs towards the gravitational-wave-driven inspiral or a larger MBH growth than usually assumed. In this work, we investigate if the nHz sGWB could also provide constraints on the population of merging lower-mass MBHBs ($ odot $) detectable by LISA. To this end, we use the L-Galaxies semi-analytical model applied to the Millennium suite of simulations.
We generate a population of MBHs compatible simultaneously with current electromagnetic and nHz sGWB constraints by including the possibility that, in favourable environments, MBHs can accrete gas beyond the Eddington limit. The predictions of this new model for the sGWB show that the global (integrated up to high-$z$) LISA detection rate is not significantly affected when compared to a fiducial model whose nHz sGWB signal is $ sim \,2$ times smaller. In both cases, the global rate yields sim $ and is dominated by systems of $ odot $. The main differences are limited to low-$z$ ($z<3$), high-mass ($ odot $) LISA MBHBs. The model compatible with the latest PTA results predicts up to $ sim \,1.6$ times more detections, with a rate of sim erg/s$. Hence, in case PTA results are confirmed and given the current MBH modelling, our findings suggest there will be higher chances to perform multimessenger studies with LISA MBHB than previously expected.</abstract><cop>Heidelberg</cop><pub>EDP Sciences</pub><doi>10.1051/0004-6361/202449293</doi></addata></record> |
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| source | EZB Electronic Journals Library |
| subjects | Compatibility Evolution Galaxies Gravitational waves Pulsars Red shift |
| title | Connecting low-redshift LISA massive black hole mergers to the nHz stochastic gravitational wave background |
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