English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Six gravitational wave events have been reported by the LIGO-Virgocollaboration (LVC), five of them associated with black hole binary (BHB)mergers and one with a double neutron star (DNS) merger, while the coalescenceof a black hole-neutron star (BHNS) binary is still missing. We investigate theprogenitors of double compact object binaries with our population-synthesiscode MOBSE. MOBSE includes advanced prescriptions for mass loss by stellarwinds (depending on metallicity and on the Eddington ratio) and a formalism forcore-collapse, electron-capture and (pulsational) pair instability supernovae.We investigate the impact of progenitor's metallicity, of the common-envelopeparameter $\alpha{}$ and of the natal kicks on the properties of DNSs, BHNSsand BHBs. We find that neutron-star (NS) masses in DNSs span from 1.1 to 2.0M$_\odot$, with a preference for light NSs, while NSs in merging BHNSs havemostly large masses ($1.3-2.0$ M$_\odot$). BHs in merging BHNSs arepreferentially low mass ($5-15$ M$_\odot$). BH masses in merging BHBs stronglydepend on the progenitor's metallicity and span from $\sim{}5$ to $\sim{}45$M$_\odot$. The local merger rate density of both BHNSs and BHBs derived fromour simulations is consistent with the values reported by the LVC in all oursimulations. In contrast, the local merger rate density of DNSs matches thevalue inferred from the LVC only if low natal kicks are assumed. This resultadds another piece to the intricate puzzle of natal kicks and DNS formation.

The progenitors of compact-object binaries: impact of metallicity, common envelope and natal kicks