J/A+A/710/L34ivo://CDS.VizieR/J/A+A/710/L34CDSSimongini A.Kherlakian M.Lopez-Oramas A.Becerra J.Cerasole D.2026-06-23T07:51:02Z2026-06-23T08:48:05ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frblack-holesphotometryvisible-astronomyultraviolet-astronomyIn this work, we present early emission data analysis of the tidal disruption event TDE 2025aarm, including optical, UV and X-ray data. At a redshift of z=0.01368, TDE 2025aarm is the second closest TDE ever discovered, offering an unprecedented opportunity to study such phenomena in great details. We observed TDE 2025aarm in optical with the Liverpool Telescope for a total of three epochs, and complemented our dataset with ancillary spectroscopic and photometric data. The early optical spectra are characterized by a blue-continuum and helium, hydrogen and possibly Bowen lines typical of H+He events. The optical light curves peak at M_g_~-18.68mag and are well described by fallback of a M*~0.16M_{sun}_ star onto a M_BH_~2x10^7^M_{sun}_ black hole. We report Swift-XRT detection in the 0.3-10keV range, with a total flux of F_X_~1.42x10^-14^erg/cm^2^/s, fitted by a black-body with k_BT_~0.39keV. This makes TDE 2025aarm a new event among optical/UV bright TDEs detected in soft X-rays. Our analysis suggests that the early emission from TDE 2025aarm is powered by circularization shocks, and that the delayed accretion scenario best describes the observed features.2026A&A...710L..34Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/710/L34CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/710/L34https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/710/L34http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/710/L34https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/710/L34https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/710/L34http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/710/L34GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapUVOpticaldefaultJ/A+A/710/L34/tablee3TDE 2025aarm light curvesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJDDate of observation (MJD)dtime.epochdoublePhasePhase from tpeak, tpeak estimated at MJD=61006.38+/-3.26dtime;arith.difffloatmagApparent magnitude in Bandmagphot.magfloate_magMagnitude errormagstat.error;phot.magfloatBand[U g r o c mmm2 www1 www2] Observed bandinstr.bandpasscharInstInstrument (ATLAS, Swift, ZTF)meta.id;instrchar