Table 2.
Consistency between light curve properties of FXTs and of off-axis GRB afterglows.
| FXT | Values of θobs/θC required to have consistent: | Combined consistency | |||
|---|---|---|---|---|---|
| LX, peak | t | α(1) | α2 | ||
| XRT 000519 | 1.6, 1.8, 2.2 | 1.4–2.8 | – | – | ✗ |
| XRT 030511 | 1.2, 1.8, 2.2 | 1.6–2.4, 2.8 | ✗ | 1.6–2.2 | ✗ |
| XRT 041230 | 2.8 | 1.2–2.6 | ✗ | ✗ | ✗ |
| XRT 080819 | 2.0–2.4 | 1.4–2.8 | 3.0 | 1.2–2.2 | ✗ |
| XRT 100831 | 1.6–2.2 | 1.6–2.4, 2.8 | 2.8–3.0 | ✗ | ✗ |
| XRT 110103 | 2.4–2.8 | 1.2–2.6 | – | – | ✗ |
| XRT 110919 | 2.0–2.4 | 1.2–2.8 | 2.8–3.0 | 1.2–1.6 | ✗ |
| XRT 140327 | 2.2–2.6 | 1.2–2.8 | 2.6 | – | ✓(θobs/θC = 2.6) |
| XRT 141001 | 1.2–2.0 | 1.2–2.8 | 2.8–3.0 | 1.6–2.2 | ✗ |
| XRT 140507 | 2.2–2.6 | 1.8–2.0, 2.4, 2.8 | 2.8–3.0 | 1.2–1.6 | ✗ |
| XRT 150322 | 2.0–2.4 | 1.2–2.8 | 2.6–3.0 | 1.2–1.6 | ✗ |
| XRT 151121 | 1.4–2.2 | 2.0–2.4 | 2.2–2.6 | – | ✓(θobs/θC = 2.2) |
| XRT 161125 | 1.2–2.0 | 2.0–2.4 | 2.2, 2.4 | – | ✗ |
| XRT 170901 | 1.2–1.4 | 2.0–2.4 | 2.6–3.0 | 1.2–2.0 | ✗ |
| XRT 191127 | 2.0 | – | 2.4–2.8 | ✗ | ✗ |
| XRT 191223 | 1.4–2.2 | 2.0–2.4 | 2.2, 2.4 | – | ✓(θobs/θC = 2.2) |
| XRT 210423 | 1.2, 1.4, 1.8, 2.2 | 1.2–2.8 | 2.6–2.8 | ✗ | ✗ |
Notes. The table shows the range of viewing angles θobs/θC for which the peak X-ray luminosity (second column), duration (third column), temporal index α or first temporal index α1 if the FXT is fit by a broken power law (fourth column), and second temporal index α2 (fifth column) of each FXT are consistent with individual off-axis GRB afterglows (in case of a structured jet only) at the same viewing angle. Regarding the temporal indices, a crossmark indicates that there is no match between the relevant temporal index of the FXT with those of the GRB afterglows, while a dash indicates that the FXT was fit by a simple power law and thus only has one temporal index α. XRT 000519 and XRT 110103 were not considered in the analysis of the temporal indices because they could be fit by neither a simple power law nor a broken power law. The sixth column denotes whether the FXT is consistent with the GRB afterglows in all three properties (luminosity, duration, and temporal indices), and if so, at which viewing angles.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.