AstroNote 2026-122

We report on the multi-band photometric monitoring campaign of TDE 2025aarm and TDE 2025bri, conducted through the BHTOM network.

TDE 2025aarmwas first discovered by GOTO in the GOTO-L band on October 1, 2025 (O'Neill et al. 2025). It was classified as TDE based on the presence of broad H and He II emission on top of a blue continuum with z = 0.01368 (Newsome et al 2025). The host is an AGN candidate named LEDA 3681212 (2020MNRAS.494.1784A) with a redshift of 0.013683. Photometric follow-up by the BHTOM.space network commenced on September 1, 2025, and was observed in grizBVRI optical bands. The peak and decline phases of TDE 2025aarm are extensively observed by the 50-cm University of Zielona Góra Observatory (Chile), 40-cm ROAD Observatory (Chile), 41-cm School Astronomical Observatory Bolecina (Poland), 1.2-meter Kryoneri Observatory (Greece), 60-cm Cassegrain Zeiss telescope of Suhora Observatory (Poland), 80-cm Joan Oró Telescope (Spain), 51-cm Slooh Australia Telescope (Australia), and 43-cm AITP-Observatory (Chile). Detailed light curves and associated statistics of TDE 2025aarm are presented on the webpage: https://bhtom.space/public/targets/TDE2025aarm.

TDE 2025briwas first discovered by ZTF in the ZTF-r band on February 15, 2025 (Jurado et al. 2025). It was classified as TDE-He on February 22, 2025 (Stein et al. 2025) using the spectrum taken with the Goodman High Throughput Spectrograph on the 4m SOAR telescope with a redshift of 0.061. The host galaxy is WISEA J141040.43-104756.9. Photometric follow-up by the BHTOM.space network commenced on March 3, 2025, and was observed by the 50-cm University of Zielona Góra Observatory (Chile) and the 40-cm GoChile-GoT1 Telescope (Chile) in the grzuBV optical bands. Swift UVOT data for this target is automatically processed with the BHTOM Swift UVOT pipeline and consistent with the ground based obseravtions. Detailed light curves and associated statistics of TDE 2025bri are presented on the webpage: https://bhtom.space/public/targets/TDE2025bri.

Data accessed through the BHTOM networkis subject to its Terms and Conditions available here. Public links to the light curves are provided here in the spirit of open science and collaborative research; full downloads are available to registered users upon creating a free account at BHTOM.

We share these resources because we believe in free data accessibility and the value of broad scientific collaboration. In return, we kindly ask that researchers who find these light curves useful to properly acknowledge the BHTOM project. Proper credit is essential to sustaining the collaborative spirit that makes this data possible.

Researchers planning to use these data are warmly encouraged to reach out to the BHTOM team in advance at contact@bhtom.space.

Acknowledgements: BHTOM.space is based on the open-source TOM Toolkit by LCO and has been supported by the European Union's research and innovation programmes under grant agreements No 101004719 (OPTICON-RadioNet Pilot, ORP) and 101131928 (ACME).