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RCW 103

This is a three-color X-ray image taken by Chandra of the supernova remnant RCW 103. This supernova remnant is an unusual system: it’s young, but unlike other remnants of its age, metal-rich ejecta hadn’t previously been discovered in it. In this paper, Kari Frank (Pennsylvania State University) and collaborators analyze the three deepest Chandra observations of RCW 103 and find the first evidence for metal-rich ejecta emission scattered throughout the remnant. Their analyses also help to constrain the identity of the mysterious compact stellar object powering the remnant. In this image, red = 0.3–0.85 keV, green = 0.85–1.70 keV, and blue = 1.7–3.0 keV; click on the image for the full view. For more information and the original image, see the paper here:

Kari A. Frank et al 2015 ApJ 810 113 doi:10.1088/0004-637X/810/2/113.

coronal loops

This is an extreme ultraviolet image of NOAA Active Region 1283, as seen by the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory. The region in this image consists of two coronal loops embedded within the same coronal magnetic arcade. Rekha Jain and collaborators observed these loops oscillate while a wavefront, plotted on top of the image in white, passed through them. The oscillations were triggered by a nearby solar flare, and studying them can give us information about the properties of the coronal loops that we wouldn’t otherwise be able to measure. For more information and the original image, see the paper below.

Citation:

Rekha Jain et al. 2015 ApJ 804 L19 doi:10.1088/2041-8205/804/1/L19.

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