most citedOptical and near-infrared spectroscopy of the black hole transient 4U 1543-47 during its 2021 ultra-luminous state

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astro-ph.HE2023★ 12 cited

Optical and near-infrared spectroscopy of the black hole transient 4U 1543-47 during its 2021 ultra-luminous state

J. Sánchez-Sierras, T. Muñoz-Darias, J. Casares +10

We present simultaneous optical and near-infrared spectra obtained during the 2021 outburst of the black hole transient 4U 1543-47. The X-ray hardness-intensity diagram and the com…