TITLE:   GCN CIRCULAR
NUMBER:  45497
SUBJECT:  EP260901a: EP-FXT follow-up observation
DATE:    26/09/02 13:58:08 GMT
FROM:    EP Team at NAOC/CAS <ep_ta@bao.ac.cn>

Y. F. Liang, J. Y. Liu (PMO), X. Mao, Q. H. Lao, Z. X. Ling (NAO, CAS) on behalf of the Einstein Probe (EP) team:

EP-FXT performed a follow-up observation of EP260901a (Liang et al., GCN 45487; Buckley et al., GCN 45492) starting at 2026-09-01T22:26:36 (UTC), approximately 17 hours after the WXT detection. With an exposure time of 4 ks, no significant X-ray source was detected within the 2.4 arcmin radius of the EP-WXT position. The derived 0.5-10 keV upper limit is about 1.0e-13 erg cm^-2 s^-1.

Launched on January 9, 2024, EP is a space X-ray observatory to monitor the soft X-ray sky with X-ray follow-up capability (Yuan et al. 2022, Handbook of X-ray and Gamma-ray Astrophysics).
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