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Table 1.

X-rays and optical photometry of LXT 240402A.

X-rays

Mid-time Exposure Telescope Instrument Unabsorbed flux References
(days) (ks) (10−14 erg cm−2 s−1)
1.53 12 EP FXT 86.00 ± 9.00 Jia et al. (2024)
5.49 47 Swift XRT 12.97 ± 8.76 This work, Evans et al. (2009)
11.75 35 Swift XRT 8.64 ± 4.59 This work, Evans et al. (2009)
12.79 16 Chandra ACIS-S 9.13 ± 1.20 This work

Optical/nIR photometry

Mid-time Exposure Telescope Instrument Filter Magnitude References
(days) (s) (AB)

1.31 8100 Kinder LOT&SLT r 22.21 ± 0.10 Yang et al. (2024a)
1.93 1700 VLT FORS2 R 22.71 ± 0.03 Levan et al. (2024), This work
2.96 900 VLT FORS2 R 23.31 ± 0.03 This work
4.94 900 VLT FORS2 R 23.76 ± 0.04 This work
97.73 2400 VLT FORS2 R Template This work

Notes. Magnitudes are corrected by Galactic Extinction. Upper limits correspond to a 3σ confidence level.

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