General information
COLIBRÍ/DDRAGO observed the field of EP-WXT trigger 01709258631 associated with EP 260225.148 and reports no new optical transient in the WXT uncertainty region. The circular states this supports the trigger being very probably due to a flaring star.
Wavelength coverage
- X-ray: EP-WXT trigger referenced.
- Optical: COLIBRÍ simultaneous r and z imaging with image subtraction.
No radio, infrared, ultraviolet, gamma-ray, neutrino, or gravitational-wave observations are mentioned.
Lightcurve and spectrum
- Observing window: 2026-02-25 04:42–05:54 UTC (1.16–2.36 hr after trigger), 55 min simultaneous exposure in r and z.
- Non-detection (5σ): r > 23.4, z > 22.4 (AB; not corrected for Galactic extinction).
Redshift
What’s special vs typical