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Pulse Peak Migration during the Outburst Decay of the Magnetar SGR 1830-0645: Crustal Motion and Magnetospheric Untwisting

  • Authors: George Younes, Samuel K Lander, Matthew G. Baring, Teruaki Enoto, Chryssa Kouveliotou, Zorawar Wadiasingh, Wynn C.G. Ho, Alice K. Harding, Zaven Arzoumanian, Keith Gendreau, Tolga Güver, Chin-Ping Hu, Christian Malacaria, Paul S. Ray, and Tod E. Strohmayer

2022 The Astrophysical Journal Letters 924 L27.

  • Provider: AAS Journals

Caption: Figure 5.

Temporal evolution of the warm BB (left panels) and hot BB (right panels) for each of the three peaks in the SGR 1830−0645 pulse profile. The upper panels show the 1–10 keV flux decay while the lower panels display their corresponding area evolution. The lines are best-fit linear decay trends. Note that the vertical axes of the upper panels are logarithmic. The constant separations between the lines indicate a similar fractional change in each peak. See text for more details.

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