Constraining population synthesis models via the binary neutron star population

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dc.creatorO'Shaughnessy, R.
dc.creatorKim, C.
dc.creatorFrakgos, T.
dc.creatorKalogera, V.
dc.creatorBelczynski, K.
dc.date2005-04-21
dc.date2005-06-13
dc.date.accessioned2026-07-07T12:59:39Z
dc.date.available2026-07-07T12:59:39Z
dc.descriptionThe observed sample of double neutron-star (NS-NS) binaries presents a challenge to population-synthesis models of compact object formation: the parameters entering into these models must be carefully chosen so as to match (i) the observed star formation rate and (ii) the formation rate of NS-NS binaries, which can be estimated from the observed sample and the selection effects related to the discoveries with radio-pulsar surveys. In this paper, we select from an extremely broad family of possible population synthesis models those few (2%) which are consistent with the observed sample of NS-NS binaries. To further sharpen the constraints the observed NS-NS population places upon our understanding of compact-object formation processes, we separate the observed NS-NS population into two channels: (i) merging NS-NS binaries, which will inspiral and merge through the action of gravitational waves within $10 $ Gyr, and (ii) wide NS-NS binaries, consisting of all the rest. With the subset of astrophysically consistent models, we explore the implications for the rates at which double black hole (BH-BH), black hole-neutron star (BH-NS), and NS-NS binaries will merge through the emission of gravitational waves.
dc.description(v1) Submitted to ApJ. Uses emulateapj.cls. 8 pages, 7 figures. (v2) Minor textual changes in response to referee queries. Substantial additions in appendicies, including a detailed discussion of sample multidimensional population synthesis fits
dc.identifierhttps://arxiv.org/abs/astro-ph/0504479
dc.identifierhttp://arxiv.org/abs/astro-ph/0504479
dc.identifierAstrophys.J.633:1076-1084,2005
dc.identifierdoi:10.1086/468180
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/225639
dc.subjectAstrophysics
dc.titleConstraining population synthesis models via the binary neutron star population
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