遇见数据集

Gravitational Waves from Dark Matter admixed Binary Neutron Star Mergers

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Zenodo2025-07-31 更新2026-05-26 收录
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This dataset contains Gravitational Waves (GW)s data from numerical relavity simulations of dark matter (DM) admixed binary neutron stars (BNS), presented in the preprint: "Numerical Relativity Simulations of Dark Matter Admixed Binary Neutron Stars". The simulations were performed using the BAM code and explore the dynamics of BNS systems where the neutron stars contain a fraction of non-interacting fermionic DM. This dataset contains time-series data for GW strain h and the Weyl scalar $\Psi_4$. Each data file (e.g., Rh_l2_m0_r00300) typically begins with a header section, which provides global parameter for the specific simulation run and extraction. Header Information: `# r=X.XXXXe+XX`: GW extraction radius in units solar masses ($M_\odot$). `# M=X.XXXXe+XX`: Total ADM mass of the initial binary system, in solar masses ($M_\odot$). `# Umerger=X.XXXXe+XX indxmerg=Y`: Scaled approximate retarded time coordinate of the merger ($u/M$), and its corresponding index in the data array. Data Columns: Following the header, each row represents a data point at a specific time. The columns are ordered as follows: 0: 'u/M', approximate retarded time coordinate divided by ADM mass 1: 'Reh/M', Real part of the GW strain times extraction radius divided by ADM mass 2: 'Imh/M', Imaginary part of the GW strain times extraction radius divided by ADM mass 3: 'Redh', Real part of the GW strain derivative times extraction radius 4: 'Imdh', Imaginary part of the GW strain derivative times extraction radius 5: 'Momega', instantenous GW frquency times ADM mass 6: 'A/M', GW amplitude divided by ADM mass 7: 'phi', Phase of the GW strain 8: 't/M', simulation time divided by ADM mass Naming Convention: Folders are named after the corresponding simulation using the following approach: "DMFraction_MassConfiguration_Resolution". Two distinct file types are available: those with and without the _cut suffix in their filenames. The _cut version contains the GW signal obtained by truncating the end of the simulation data before the strain computation. Files are named following a pattern like: "Rh/Rpsi4_l_m_ExtractionRadius.txt" For details on the extraction methodology and scaling, please refer to the associated preprint: Numerical Relativity Simulations of Dark Matter Admixed Binary Neutron Stars".

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Zenodo
创建时间:
2025-07-31
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