PEARLS: NuSTAR and XMM-Newton Extragalactic Survey of the JWST North Ecliptic Pole Time-Domain Field V: Unraveling X-ray Spectral Variability

arXiv:2610.08920 · astro-ph.HE · Submitted 2026-10-06 · Read on arXiv

astro-ph.HE

Submitted: 2026-10-06

Updated: 2026-10-08

Code: https://github.com/JohannesBuchner/addspec.py

Terminology

• AGN — 98× in this paper · explained in 1 episode
• Calibration — 6× in this paper · explained in 7 episodes
• Degeneracy — 5× in this paper · explained in 3 episodes
• Population Synthesis — 5× in this paper · explained in 2 episodes
• Active Galactic Nuclei — 2× in this paper
• Active Galactic Nuclei (AGN) — 2× in this paper · explained in 1 episode
• Core — 2× in this paper · explained in 2 episodes
• National Science Foundation — 2× in this paper
• Advanced CCD Imaging Spectrometer — 1× in this paper
• Aperture — 1× in this paper · explained in 1 episode
• Consistency — 1× in this paper · explained in 3 episodes
• Dark Energy Spectroscopic Instrument — 1× in this paper

Sources

• Dos and don'ts of reduced chi-squared
• Asymmetric Systematic Errors
• PEARLS: Two Distinct Populations of AGN Hosts Moving Between Star Formation and Quiescence
• The contribution of AGNs to the X-ray background
• Self-consistent population synthesis of AGN from observational constraints in the X-rays
• J-NEP: 60-band photometry and photometric redshifts for the James Webb Space Telescope North Ecliptic Pole Time-Domain Field
• PEARLS: NuSTAR and XMM-Newton Extragalactic Survey of the JWST North Ecliptic Pole Time Domain Field VI: Multiwavelength SED Analysis
• Unveiling Obscured Accretion in the Local Universe
• PEARLS: NuSTAR and XMM-Newton Extragalactic Survey of the JWST North Ecliptic Pole Time-Domain Field IV: X-Ray Variability Analysis

Related papers

• Numerical Studies of Accretion Flows onto a Neutron Star Engulfed in a Massive Star
• Collisionless Accretion of Finite-Angular-Momentum Plasma onto a Spinning Black Hole
• Impact of Magnetic Field Topology on Electromagnetic and Gravitational Waves from Binary Neutron Star Merger Remnants
• XRISM Resolve Spectroscopy of GX 5-1: Constraints on Iron Spectral Features in a Luminous Neutron-Star Binary
• SN 1006: A Cosmic Laboratory for Investigating Shock Acceleration Physics
• Neutrino Spectral Pinching in 3D Core-Collapse Supernovae: Late-Time Convergence, Failed-Explosion Signatures, and Viewing-Angle Dispersion