A NICER look at the Aql X-1 hard state by Bult, Peter, Arzoumanian, Zaven, Cackett, Edward M., Guillot, Sebastien, Jaisawal, Gaurava K., Keek, Laurens, Kenyon, Steve, Lamb, Frederick K., Ludlam, Renee, Mahmoodifar, Simin, Markwardt, Craig, Soong, Yang, Strohmayer, Tod E., Uttley, Phil, Chakrabarty, Deepto, Gendreau, Keith C., Homan, Jeroen, Miller, Jon M, Prigozhin, Gregory

“…We report on a spectral-timing analysis of the neutron star low-mass X-ray binary (LMXB) Aql X-1 with the Neutron Star Interior Composition Explorer (NICER) on the International Space Station (ISS). …”
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NICER Observes the Effects of an X-Ray Burst on the Accretion Environment in Aql X-1 by Keek, L., Arzoumanian, Z., Bult, P., Cackett, E. M., Chenevez, J., Fabian, A. C., Gendreau, K. C., Guillot, S., Güver, T., Homan, J., Jaisawal, G. K., Lamb, F. K., Ludlam, R. M., Mahmoodifar, S., Markwardt, C. B., Miller, J. M., Soong, Y., Strohmayer, T. E., Wolff, M. T., Chakrabarty, Deepto, Prigozhin, Gregory

“…Key words: accretion, accretion disks – stars: individual (Aql X-1) – stars: neutron – X-rays: binaries – X-rays: bursts…”
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A NICER look at thermonuclear X-ray bursts from Aql X-1 by Güver, Tolga, Boztepe, Tuğba, Ballantyne, DR, Bostancı, Z Funda, Bult, Peter, Jaisawal, Gaurava K, Göğüş, Ersin, Strohmayer, Tod E, Altamirano, Diego, Guillot, Sebastien, Chakrabarty, Deepto

“…This is the first systematic investigation of a large sample of type I X-ray bursts from Aql X-1 with improved sensitivity at low energies. …”
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EVOLUTION OF THE RADIO-X-RAY COUPLING THROUGHOUT AN ENTIRE OUTBURST OF AQUILA X-1 by Miller-Jones, J. C. A., Sivakoff, G. R., Altamirano, D., Tudose, V., Migliari, S., Dhawan, V., Fender, R. P., Garrett, M. A., Heinz, Sebastian, Körding, E. G., Krimm, H. A., Maitra, D., Markoff, Sera B., Paragi, Z., Rupen, M. P., Rushton, A., Russell, D. M., Sarazin, C. L., Spencer, R. E., Linares Alegret, Manuel, Remillard, Ronald A

“…The 2009 November outburst of the neutron star X-ray binary Aquila X-1 (Aql X-1) was observed with unprecedented radio coverage and simultaneous pointed X-ray observations, tracing the radio emission around the full X-ray hysteresis loop of the outburst for the first time. …”
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SUZAKU OBSERVATIONS OF 4U 1957+11: POTENTIALLY THE MOST RAPIDLY SPINNING BLACK HOLE IN (THE HALO OF) THE GALAXY by Nowak, Michael A., Pottschmidt, Katja, Maitra, Dipankar, Miller, Jon, Schulz, Norbert S., Wilms, Jorn

“…We present three Suzaku observations of the black hole candidate 4U 1957+11 (V1408 Aql)—a source that exhibits some of the simplest and cleanest examples of soft, disk-dominated spectra. 4U 1957+11 also presents among the highest peak temperatures found from disk-dominated spectra. …”
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The accretion process in neutron-star low-mass X-ray binaries by Lin, Dacheng

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