Figure 2 from NICER Observes the Effects of an X-Ray Burst on the Accretion Environment in Aql X-1

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NICER Observes the Effects of an X-Ray Burst on the Accretion Environment in Aql X-1

Authors: L. Keek, Z. Arzoumanian, P. Bult, E. M. Cackett, D. Chakrabarty, J. Chenevez, A. C. Fabian, K. C. Gendreau, S. Guillot, T. Güver, J. Homan, G. K. Jaisawal, F. K. Lamb, R. M. Ludlam, S. Mahmoodifar, C. B. Markwardt, J. M. Miller, G. Prigozhin, Y. Soong, T. E. Strohmayer, and M. T. Wolff

2018 The Astrophysical Journal Letters 855 L4.

Provider: AAS Journals

Caption: Figure 2.

Spectral fit to the pre-burst spectrum as a function of energy, E. Top: pre-burst spectrum and best-fitting absorbed bremsstrahlung model (solid line). The background (rebinned) is small with respect to the source at all energies and has been subtracted from the shown pre-burst spectrum. The absorption edge near 2.3 keV is instrumental. Bottom: fit residuals and the goodness of fit, ﹩{\chi }_{\nu }^{2}﹩.

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