The Open UniversitySkip to content
 

Dependence of gravitational wave transient rates on cosmic star formation and metallicity evolution history

Tang, Petra N.; Eldridge, J. J.; Stanway, Elizabeth R. and Bray, J. C. (2020). Dependence of gravitational wave transient rates on cosmic star formation and metallicity evolution history. Monthly Notices of the Royal Astronomical Society: Letters, 493(1) L6-L10.

Full text available as:
[img]
Preview
PDF (Version of Record) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (331kB) | Preview
DOI (Digital Object Identifier) Link: https://doi.org/10.1093/mnrasl/slz183
Google Scholar: Look up in Google Scholar

Abstract

We compare the impacts of uncertainties in both binary population synthesis models and the cosmic star formation history on the predicted rates of gravitational wave (GW) compact binary merger events. These uncertainties cause the predicted rates of GW events to vary by up to an order of magnitude. Varying the volume-averaged star formation rate density history of the Universe causes the weakest change to our predictions, while varying the metallicity evolution has the strongest effect. Double neutron star merger rates are more sensitive to assumed neutron star kick velocity than the cosmic star formation history. Varying certain parameters affects merger rates in different ways depending on the mass of the merging compact objects; thus some of the degeneracy may be broken by looking at all the event rates rather than restricting ourselves to one class of mergers.

Item Type: Journal Item
Copyright Holders: 2020 The Authors
ISSN: 1745-3933
Keywords: gravitational waves; methods: numerical; galaxies: star formation
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Related URLs:
Item ID: 69132
SWORD Depositor: Jisc Publications-Router
Depositing User: Jisc Publications-Router
Date Deposited: 27 Jan 2020 10:42
Last Modified: 08 Feb 2020 07:22
URI: http://oro.open.ac.uk/id/eprint/69132
Share this page:

Metrics

Altmetrics from Altmetric

Citations from Dimensions

Download history for this item

These details should be considered as only a guide to the number of downloads performed manually. Algorithmic methods have been applied in an attempt to remove automated downloads from the displayed statistics but no guarantee can be made as to the accuracy of the figures.

Actions (login may be required)

Policies | Disclaimer

© The Open University   contact the OU