A Newly Identified Transient Ultraluminous X-ray Source in M31

arXiv:2610.08918 · astro-ph.HE · Submitted 2026-10-06 · Read on arXiv

astro-ph.HE

Submitted: 2026-10-06

Updated: 2026-10-06

Project page: https://nxsa.esac.esa.int/nxsa-web/#search

Terminology

• Chandra X-ray Observatory — 3× in this paper
• ASI Space Science Data Center — 2× in this paper
• Alignment — 2× in this paper · explained in 1 episode
• Calibration — 2× in this paper · explained in 7 episodes
• Degeneracy — 2× in this paper · explained in 3 episodes
• High Energy Astrophysics Science Archive Research Center — 2× in this paper
• Hubble Space Telescope — 2× in this paper
• Abundance — 1× in this paper · explained in 1 episode
• Asteroid Terrestrial-impact Last Alert System — 1× in this paper
• Elias — 1× in this paper · explained in 2 episodes
• European Space Agency — 1× in this paper
• European Space Astronomy Centre — 1× in this paper
• High Resolution Camera — 1× in this paper
• Mikulski Archive for Space Telescopes — 1× in this paper
• Science and Technology Facilities Council — 1× in this paper

Sources

• A New Forced Photometry Service for the Zwicky Transient Facility
• Optical Counterparts of Ultraluminous X-Ray Sources

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