Evidence for a luminosity-class dichotomy in the supergiant donors of persistent high-mass X-ray binaries and supergiant fast X-ray transients

arXiv:2609.00175 · astro-ph.HE, astro-ph.SR · Submitted 2026-08-31 · Read on arXiv

astro-ph.HE, astro-ph.SR

Submitted: 2026-08-31

Updated: 2026-08-31

Comments: Accepted for publication in Astronomy & Astrophysics (received May 18, 2026; accepted August 11, 2026). The manuscript comprises 11 pages, 5 figures, and 4 tables. The version submitted here also includes all supplementary tables (B.1, C.1, C.2, and D.1), which in the published A&A article are provided exclusively in electronic form via the CDS

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

Terminology

• Calibration — 1× in this paper · explained in 7 episodes
• Redundancy — 1× in this paper · explained in 2 episodes
• alpha — 1× in this paper · explained in 1 episode

Sources

• Wind Accretion - Observations Vs Theory

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