Multi-Messenger Windows on the Universe: detecting precursor emission to compacts' mergers
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arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866916738613903360 |
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| author | Lyutikov, Maxim |
| author_facet | Lyutikov, Maxim |
| contents | We provide an overview of various mechanisms, and corresponding powers, of precursor emission to compacts' mergers to be detected by LIGO-Virgo-KAGRA (LVK) collaboration. Expected peak powers, $\leq 10^{43}$ erg s$^{-1}$, are not sufficiently high to be detected by all-sky high-energy satellites (unless beamed). The best chance is the detection of possible coherent radio emission, producing observable signals up to $\sim$ Jansky of flux density. Low-frequency phased array telescopes like LOFAR, the MWA and DSA-2000 are best suited due to their large instantaneous sky coverage. Time-wise, in addition to LIGO early warning alerts up to a minute before the merger, the dispersive delay at lower frequencies of $\sim$ 300 MHz can be of the order of minutes. Optical detections are the most challenging. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_16504 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Multi-Messenger Windows on the Universe: detecting precursor emission to compacts' mergers Lyutikov, Maxim High Energy Astrophysical Phenomena We provide an overview of various mechanisms, and corresponding powers, of precursor emission to compacts' mergers to be detected by LIGO-Virgo-KAGRA (LVK) collaboration. Expected peak powers, $\leq 10^{43}$ erg s$^{-1}$, are not sufficiently high to be detected by all-sky high-energy satellites (unless beamed). The best chance is the detection of possible coherent radio emission, producing observable signals up to $\sim$ Jansky of flux density. Low-frequency phased array telescopes like LOFAR, the MWA and DSA-2000 are best suited due to their large instantaneous sky coverage. Time-wise, in addition to LIGO early warning alerts up to a minute before the merger, the dispersive delay at lower frequencies of $\sim$ 300 MHz can be of the order of minutes. Optical detections are the most challenging. |
| title | Multi-Messenger Windows on the Universe: detecting precursor emission to compacts' mergers |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2402.16504 |