The Fast Radio Burst Population Energy Distribution
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arXiv
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| Autori principali: | , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| author | Arcus, W. R. James, C. W. Ekers, R. D. Macquart, J-P. Sadler, E. M. Wayth, R. B. Bannister, K. W. Deller, A. T. Flynn, C. Glowacki, M. Gordon, A. C. Marnoch, L. Ryder, S. D. Shannon, R. M. |
| author_facet | Arcus, W. R. James, C. W. Ekers, R. D. Macquart, J-P. Sadler, E. M. Wayth, R. B. Bannister, K. W. Deller, A. T. Flynn, C. Glowacki, M. Gordon, A. C. Marnoch, L. Ryder, S. D. Shannon, R. M. |
| contents | We examine the energy distribution of the fast radio burst (FRB) population using a well-defined sample of 63 FRBs from the ASKAP radio telescope, 28 of which are localised to a host galaxy. We apply the luminosity-volume ($V/V_{\mathrm{max}}$) test to examine the distribution of these transient sources, accounting for cosmological and instrumental effects, and determine the energy distribution for the sampled population over the redshift range $0.01 \lesssim z \lesssim 1.02$. We find the distribution between $10^{23}$ and $10^{26}$J Hz$^{-1}$ to be consistent with both a pure power-law with differential slope $γ=-1.96 \pm 0.15$, and a Schechter function with $γ= -1.82 \pm 0.12$ and downturn energy $E_{\rm max} \sim 6.3 \cdot 10^{25}$J Hz$^{-1}$. We identify systematic effects which currently limit our ability to probe the luminosity function outside this range and give a prescription for their treatment. Finally, we find that with the current dataset, we are unable to distinguish between the evolutionary and spectral models considered in this work. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_09351 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The Fast Radio Burst Population Energy Distribution Arcus, W. R. James, C. W. Ekers, R. D. Macquart, J-P. Sadler, E. M. Wayth, R. B. Bannister, K. W. Deller, A. T. Flynn, C. Glowacki, M. Gordon, A. C. Marnoch, L. Ryder, S. D. Shannon, R. M. High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics We examine the energy distribution of the fast radio burst (FRB) population using a well-defined sample of 63 FRBs from the ASKAP radio telescope, 28 of which are localised to a host galaxy. We apply the luminosity-volume ($V/V_{\mathrm{max}}$) test to examine the distribution of these transient sources, accounting for cosmological and instrumental effects, and determine the energy distribution for the sampled population over the redshift range $0.01 \lesssim z \lesssim 1.02$. We find the distribution between $10^{23}$ and $10^{26}$J Hz$^{-1}$ to be consistent with both a pure power-law with differential slope $γ=-1.96 \pm 0.15$, and a Schechter function with $γ= -1.82 \pm 0.12$ and downturn energy $E_{\rm max} \sim 6.3 \cdot 10^{25}$J Hz$^{-1}$. We identify systematic effects which currently limit our ability to probe the luminosity function outside this range and give a prescription for their treatment. Finally, we find that with the current dataset, we are unable to distinguish between the evolutionary and spectral models considered in this work. |
| title | The Fast Radio Burst Population Energy Distribution |
| topic | High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2408.09351 |