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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2409.15653 |
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| _version_ | 1866909323975720960 |
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| author | Wang, J. Xin, L. P. Qiu, Y. L. Lan, L. Xie, W. J. Jin, Z. P. Wei, J. Y. |
| author_facet | Wang, J. Xin, L. P. Qiu, Y. L. Lan, L. Xie, W. J. Jin, Z. P. Wei, J. Y. |
| contents | In spite of the importance of studying the cosmic generation of heavy elements through the r-process, the detection of kilonova resulted from a merger of neutron star binaries is still a challenge task. In this paper, we show that the Visible Telescope (VT) onboard the on-going SVOM space mission is powerful for identifying kilonova candidates associated with short gamma-ray bursts (SGRBs) up to a distance of 600Mpc. A significant color variation, turn blue and then turn red, is revealed by calculating the light curves in both red and blue channels of VT by a linear combination of an afterglow and an associated kilonova. The maximum color variation is as high as $\sim0.5-1$ mag, which is far larger than the small photometry error of $\sim0.2$ mag of VT for a point source with a brightness of 23 mag. Up to a distance of 600Mpc, $\sim1-2$ kilonova candidates per year are predicted to be identified by VT. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_15653 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Capability of Searching for Kilonova Associated with a Short Gamma-ray Burst by SVOM Wang, J. Xin, L. P. Qiu, Y. L. Lan, L. Xie, W. J. Jin, Z. P. Wei, J. Y. High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics In spite of the importance of studying the cosmic generation of heavy elements through the r-process, the detection of kilonova resulted from a merger of neutron star binaries is still a challenge task. In this paper, we show that the Visible Telescope (VT) onboard the on-going SVOM space mission is powerful for identifying kilonova candidates associated with short gamma-ray bursts (SGRBs) up to a distance of 600Mpc. A significant color variation, turn blue and then turn red, is revealed by calculating the light curves in both red and blue channels of VT by a linear combination of an afterglow and an associated kilonova. The maximum color variation is as high as $\sim0.5-1$ mag, which is far larger than the small photometry error of $\sim0.2$ mag of VT for a point source with a brightness of 23 mag. Up to a distance of 600Mpc, $\sim1-2$ kilonova candidates per year are predicted to be identified by VT. |
| title | Capability of Searching for Kilonova Associated with a Short Gamma-ray Burst by SVOM |
| topic | High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2409.15653 |