Dissecting the Nuclear Structure of NGC 5548 with XRISM. I. Physical Properties of the Highly Ionized Outflows

arXiv:2608.05098 · astro-ph.HE, astro-ph.GA · Submitted 2026-08-05 · Read on arXiv

Missagh Mehdipour, Jon M. Miller, Jelle S. Kaastra, Gerard A. Kriss, Keigo Fukumura, Liyi Gu, Doyee Byun, Xin Xiang, Ehud Behar, Laura W. Brenneman, Elisa Costantini, Maryam Dehghanian, Jacobo Ebrero, Massimo Gaspari, Anna Juráňová, Erin Kara, Chen Li, Junjie Mao, Hirofumi Noda, Anna Ogorzalek, Ioanna Psaradaki, Daniele Rogantini, Sascha T. Zeegers, Keqin Zhao

astro-ph.HE, astro-ph.GA

Submitted: 2026-08-05

Comments: Accepted for publication in ApJ, 14 pages

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• AGN — 30× in this paper · explained in 1 episode
• Calibration — 5× in this paper · explained in 7 episodes
• Aperture — 3× in this paper · explained in 1 episode
• X-Ray Imaging and Spectroscopy Mission — 3× in this paper
• Entrainment — 2× in this paper · explained in 2 episodes
• Non-X-ray Background — 2× in this paper
• XMM-Newton Reflection Grating Spectrometer — 2× in this paper
• AGN Feedback — 1× in this paper · explained in 1 episode
• Abundance — 1× in this paper · explained in 1 episode
• Aperture Photometry — 1× in this paper · explained in 1 episode
• Reheating — 1× in this paper · explained in 2 episodes
• Trace — 1× in this paper · explained in 2 episodes
• alpha — 1× in this paper · explained in 1 episode

Sources

• Anatomy of the AGN in NGC 5548: II. The Spatial, Temporal and Physical Nature of the Outflow from HST/COS Observations
• Active galactic nuclei with high-resolution X-ray spectroscopy
• The dynamic central environment of NGC 3516 revealed by XRISM
• XRISM Discovery of Multiple Ionized Fe-K Emission and Absorption Components in Centaurus A
• Winds of Change: XRISM Resolve X-ray spectroscopy of NGC 4051

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