Figure 10 from A SPATIALLY RESOLVED STUDY OF THE SYNCHROTRON EMISSION AND TITANIUM IN TYCHO’S SUPERNOVA REMNANT USING NuSTAR

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A SPATIALLY RESOLVED STUDY OF THE SYNCHROTRON EMISSION AND TITANIUM IN TYCHO’S SUPERNOVA REMNANT USING NuSTAR

Authors: Laura A. Lopez, Brian W. Grefenstette, Stephen P. Reynolds, Hongjun An, Steven E. Boggs, Finn E. Christensen, William W. Craig, Kristoffer A. Eriksen, Chris L. Fryer, Charles J. Hailey, Fiona A. Harrison, Kristin K. Madsen, Daniel K. Stern, William W. Zhang, and Andreas Zoglauer

2015 The Astrophysical Journal 814 132.

Provider: AAS Journals

Caption: Figure 10.

Map of rolloff frequency ν_rolloff across Tycho, with black contours from the 3–20 keV image in Figure 8. The softest spectra (i.e., those with the smallest best-fit values of ν_rolloff) are found in the southeast and north of Tycho, while the hardest spectra are in the northeast and the west. The hardest spectra (with ν_rolloff ≳ 3 × 10¹⁷ Hz) are coincident with the “stripes” found in deep Chandra observations of Tycho by Eriksen et al. (2011).

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