First Pre-peak Ultraviolet Spectrum of a Tidal Disruption Event: A Fast Outflow Revealed Prior to Maximum Light in TDE2025aarm

arXiv:2609.28460 · astro-ph.HE · Submitted 2026-09-23 · Read on arXiv

astro-ph.HE

Submitted: 2026-09-23

Updated: 2026-09-23

Terminology

• Calibration — 6× in this paper · explained in 7 episodes
• Transient Name Server — 6× in this paper
• Aperture — 3× in this paper · explained in 1 episode
• Society of Photo-Optical Instrumentation Engineers — 3× in this paper
• Metallicity — 2× in this paper · explained in 3 episodes
• Adam — 1× in this paper · explained in 2 episodes
• Aperture Correction — 1× in this paper · explained in 1 episode
• Core — 1× in this paper · explained in 2 episodes
• EMMA — 1× in this paper · explained in 2 episodes
• Failure Modes — 1× in this paper · explained in 3 episodes
• Inamori-Magellan Areal Camera and Spectrograph — 1× in this paper
• Markov Chain Monte Carlo — 1× in this paper
• Mikulski Archive for Space Telescopes — 1× in this paper
• Sloan Digital Sky Survey — 1× in this paper
• Space Telescope Imaging Spectrograph — 1× in this paper

Sources

• Aarmed with Data: Bumps, Outflows, and Disk-like Emission in TDE 2025aarm
• Low-hard to high-soft spectral state transitions in the faintest early-X-ray-detected optical tidal disruption event TDE 2025aarm
• The Pan-STARRS1 Surveys
• Tidal Disruption Events
• Science with the Ultraviolet Explorer (UVEX)
• The spectral evolution of AT 2018dyb and the presence of metal lines in tidal disruption events
• A New Forced Photometry Service for the Zwicky Transient Facility
• On the Faint Early-time Radio and X-ray Emissions in TDE2025aarm
• JWST and Keck observations of the off-nuclear tidal disruption event TDE 2025abcr: An evolving reprocessing layer
• PypeIt: The Python Spectroscopic Data Reduction Pipeline
• Early emission characterization of TDE 2025aarm
• Stream-Disk Shocks as the Origins of Peak Light in Tidal Disruption Events

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