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arXiv · 1011.3877

The Discovery of Infrared Rings in the Planetary Nebula NGC 1514 During the WISE All-Sky Survey

Michael E. Ressler·Martin Cohen·Stefanie Wachter·D. W. Hoard·Amy K. Mainzer·Edward L. Wright
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Abstract

We report the discovery of a pair of infrared, axisymmetric rings in the planetary nebula NGC 1514 during the course of the WISE all-sky mid-infrared survey. Similar structures are seen at visible wavelengths in objects such as the "Engraved Hourglass Nebula" (MyCn 18) and the "Southern Crab Nebula" (Hen 2-104). However, in NGC 1514 we see only a single pair of rings and they are easily observed only in the mid-infrared. These rings are roughly 0.2 pc in diameter, are separated by 0.05 pc, and are dominated by dust emission with a characteristic temperature of 160 K. We compare the morphology and color of the rings to the other nebular structures seen at visible, far-infrared, and radio wavelengths, and close with a discussion of a physical model and formation scenario for NGC 1514.

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Michael E. Ressler, Martin Cohen, Stefanie Wachter, D. W. Hoard, Amy K. Mainzer, Edward L. Wright. 2010-11-17. The Discovery of Infrared Rings in the Planetary Nebula NGC 1514 During the WISE All-Sky Survey. https://doi.org/10.1088/0004-6256%2F140%2F6%2F1882

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