2 papers
astro-ph.HE2026
Energy-dependent Optical/Near-infrared and X-ray Correlations in Swift J1727.8-1613
Ruican Ma, Federico Vincentelli, Diego Altamirano +5
We present a timing analysis of the black hole transient Swift J1727.8-1613 during its intermediate state. We use coordinated broadband X-ray observations from Insight-HXMT (2-150…
astro-ph.HE2025
Ultraviolet spectroscopy of the black hole X-ray binary MAXI J1820+070 across a state transition
Maria Georganti, Christian Knigge, Noel Castro Segura +8
We present ultraviolet (UV) spectroscopic observations covering three distinct accretion states of the low-mass X-ray binary (LMXB) MAXI J1820+070: the luminous hard state, a hard-…