Figure 6 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 6.

Top left: integrated FPMA source spectra (black) and background model (red) of a 4′ radius region. Top right: FPMA background-subtracted spectra. Right panels: same as left panels for FPMB. The vertical red dashed line shows the rest-frame energy of the 67.86 keV Ti line. We do not find any excess emission at this line energy relative to the background model, and thus we set upper limits on ⁴⁴Ti.

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