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TDE 2025abcr: A Tidal Disruption Event in the Outskirts of a Massive Galaxy

  • Authors: Robert Stein, Jonathan Carney, Charlotte Ward, Raffaella Margutti, Xander J. Hall, Itai Sfaradi, Igor Andreoni, Panos Charalampopoulos, Ryan Chornock, Suvi Gezari, Geoffrey Mo, Yuhan Yao, Akash Anumarlapudi, Eric C. Bellm, Joshua S. Bloom, Malte Busmann, Ilaria Caiazzo, S. Bradley Cenko, Matthew J. Graham, Steven L. Groom, Daniel Gruen, Erica Hammerstein, Benjamin C. Kaiser, Mansi M. Kasliwal, Brendan O'Connor, Antonella Palmese, Josiah Purdum, Jillian C. Rastinejad, Reed Riddle, Ben Rusholme, Jesper Sollerman, Jean J. Somalwar, Sylvain Veilleux

Robert Stein et al 2026 The Astrophysical Journal Letters 1006 .

  • Provider: AAS Journals

Caption: Figure 14.

Comparison of He II FWHM vs. phase for TDE 2025abcr, EP240222A (C. C. Jin et al. 2025), and the nuclear TDE sample of P. Charalampopoulos et al. (2022). TDE 2025abcr’s He II FWHM was measured using a blended Lorentzian fit of N III λ4640 and He II λ4686 lines. For context, we show the region of this parameter space where flash features occur in young SN (R. J. Bruch et al. 2021). TDE 2025abcr sits on the narrow end of the nuclear sample but is broader and longer lasting than those seen in flash features.

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