Everything everywhere all at once: A detailed study of GW230529
Fuente:
arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866909194832052224 |
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| author | Chandra, Koustav Gupta, Ish Gamba, Rossella Kashyap, Rahul Chattopadhyay, Debatri Gonzalez, Alejandra Bernuzzi, Sebastiano Sathyaprakash, B. S. |
| author_facet | Chandra, Koustav Gupta, Ish Gamba, Rossella Kashyap, Rahul Chattopadhyay, Debatri Gonzalez, Alejandra Bernuzzi, Sebastiano Sathyaprakash, B. S. |
| contents | This study investigates the origins of GW230529, delving into its formation from massive stars within isolated binary systems. Utilizing population synthesis models, we present compelling evidence that the neutron star component forms second. However, the event's low signal-to-noise ratio introduces complexities in identifying the underlying physical mechanisms driving its formation. Augmenting our analysis with insights from numerical relativity, we estimate the final black hole mass and spin to be approximately $5.3 M_\odot$ and $0.53$, respectively. Furthermore, we employ the obtained posterior samples to calculate the ejecta mass and kilonova light curves resulting from r-process nucleosynthesis. We find the ejecta mass to range within $0-0.06 M_{\odot}$, contingent on the neutron star equation of state. The peak brightness of the kilonovae light curves indicates that targeted follow-up observations with a Rubin-like observatory may have detected this emission. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_03841 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Everything everywhere all at once: A detailed study of GW230529 Chandra, Koustav Gupta, Ish Gamba, Rossella Kashyap, Rahul Chattopadhyay, Debatri Gonzalez, Alejandra Bernuzzi, Sebastiano Sathyaprakash, B. S. High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology This study investigates the origins of GW230529, delving into its formation from massive stars within isolated binary systems. Utilizing population synthesis models, we present compelling evidence that the neutron star component forms second. However, the event's low signal-to-noise ratio introduces complexities in identifying the underlying physical mechanisms driving its formation. Augmenting our analysis with insights from numerical relativity, we estimate the final black hole mass and spin to be approximately $5.3 M_\odot$ and $0.53$, respectively. Furthermore, we employ the obtained posterior samples to calculate the ejecta mass and kilonova light curves resulting from r-process nucleosynthesis. We find the ejecta mass to range within $0-0.06 M_{\odot}$, contingent on the neutron star equation of state. The peak brightness of the kilonovae light curves indicates that targeted follow-up observations with a Rubin-like observatory may have detected this emission. |
| title | Everything everywhere all at once: A detailed study of GW230529 |
| topic | High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2405.03841 |