期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 480, 期 3, 页码 3871-3878出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/sty2174
关键词
atomic processes; gravitational waves
资金
- David and Ellen Lee Postdoctoral Fellowship at the California Institute of Technology
- European Union's Horizon 2020 research and innovation programme [749145]
- NSF Graduate Research Fellowship [DGE-1144082]
- STFC [ST/P000312/1]
- European Union's Framework Program for Research and Innovation Horizon 2020 under Marie Sklodowska-Curie grant [702538]
- VILLUM FONDEN [19054]
- NSF [PHY-1707965]
- STFC [ST/P000312/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/P000312/1] Funding Source: researchfish
- Marie Curie Actions (MSCA) [702538] Funding Source: Marie Curie Actions (MSCA)
The detection of the binary neutron star merger GW170817 together with the observation of electromagnetic counterparts across the entire spectrum inaugurated a new era of multimessenger astronomy. In this study, we incorporate wavelength-dependent opacities and emissivities calculated from atomic-structure data enabling us to model both the measured light curves and spectra of the electromagnetic transient AT2017gfo. Best fits of the observational data are obtained by Gaussian Process Regression, which allows us to present posterior samples for the kilonova and source properties connected to GW170817. Incorporating constraints obtained from the gravitational wave signal measured by the LIGO-Virgo Scientific Collaboration, we present a 90 per cent upper bound on the mass ratio q less than or similar to 1.38 and a lower bound on the tidal deformability of (A) over tilde greater than or similar to 197, which rules out sufficiently soft equations of state. Our analysis is a path-finder for more realistic kilonova models and shows how the combination of gravitational wave and electromagnetic measurements allow for stringent constraints on the source parameters and the supranuclear equation of state.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据