TY - JOUR
T1 - Short gamma-ray bursts and gravitational waves from dynamically formed merging binaries
AU - Guetta, D.
AU - Stella, L.
N1 - Funding Information:
This work was partially suedpbptyehNoralSttecienFoiocnutonianudrnade NSF grant number SBR-8987 an11d by0a MasvesDiigital Data Systems contract sponsored by the Adnvd cRaesearce h and Deveomlenpt Committee of the Community Manat gSa€e.tMmaxEgeefne’nsrrhehsoiesfuarrrstcuhedpeport through NSF grants IRI6-941, S63R-B9647, 60BD507I72-, a339dnI8I7S20;-3199 grants from the National Imagery and MapgpAginyeunrngcdtrnaeunrmbe NMA20721--109; t-e2hAir3Foe rRecsh eLaarbrayocutorngrdtrnaeunrmbe F36090-5202-;-th01e N4 al ItnieosoEtnnfitvamueianlrtHoatlhtnSeecns ui crnede grantnumber1R01ES80-109,Lockhee61dMar,tanidBnaonrHydro-Eleg ctricCo.
PY - 2009/5
Y1 - 2009/5
N2 - Merging binary systems consisting of two collapsed objects are among the most promising sources of high frequency gravitational wave, GW, signals for ground based interferometers. Double neutron star or black hole/neutron star mergers are also believed to give rise to short hard bursts (SHBs) a subclass of gamma ray bursts. SHBs might thus provide a powerful way to infer the merger rate of two-collapsed object binaries. Under the hypothesis that most SHBs originate from double neutron star or black hole/neutron star mergers, we outline here a method to estimate the incidence of merging events from dynamically formed binaries in globular clusters and infer the corresponding GW event rate that can be detected with Advanced LIGO/Virgo. In particular, a sizeable fraction of detectable GW events is expected to be coincident with SHBs. The beaming and redshift distribution of SHBs are reassessed and their luminosity function constrained by using the results from recent SHB observations. We confirm that a substantial fraction of SHBs occur at low redshifts, where the merging of systems formed in globular clusters through dynamical interactions is expected.
AB - Merging binary systems consisting of two collapsed objects are among the most promising sources of high frequency gravitational wave, GW, signals for ground based interferometers. Double neutron star or black hole/neutron star mergers are also believed to give rise to short hard bursts (SHBs) a subclass of gamma ray bursts. SHBs might thus provide a powerful way to infer the merger rate of two-collapsed object binaries. Under the hypothesis that most SHBs originate from double neutron star or black hole/neutron star mergers, we outline here a method to estimate the incidence of merging events from dynamically formed binaries in globular clusters and infer the corresponding GW event rate that can be detected with Advanced LIGO/Virgo. In particular, a sizeable fraction of detectable GW events is expected to be coincident with SHBs. The beaming and redshift distribution of SHBs are reassessed and their luminosity function constrained by using the results from recent SHB observations. We confirm that a substantial fraction of SHBs occur at low redshifts, where the merging of systems formed in globular clusters through dynamical interactions is expected.
KW - gamma rays: bursts
KW - stars: binaries: general
KW - stars: neutron
KW - gravitational waves
UR - https://www.scopus.com/pages/publications/66249092422
U2 - 10.1051/0004-6361:200810493
DO - 10.1051/0004-6361:200810493
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SN - 1432-0746
VL - 498
SP - 329
EP - 333
JO - Astronomy and Astrophysics
JF - Astronomy and Astrophysics
IS - 2
ER -