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most citedA Long, Hard Look at the Low-Hard State in Accreting Black Holes

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astro-ph.HE2014★ 8 cited

Simultaneous optical and near-IR photometry of 4U 1957+115 - a missing secondary star

Pasi Hakala, Panu Muhli, Phil Charles

We report the results of quasi-simultaneous optical and NIR photometry of the low-mass X-ray binary, 4U 1957+115. Our observations cover B, V, R, I, J, H and K-bands and additional…