Abstract
We report the discovery of a pair of infrared, axisymmetric rings in the planetary nebula NGC 1514 during the course of theWISE 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.
Original language | English (US) |
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Pages (from-to) | 1882-1890 |
Number of pages | 9 |
Journal | Astronomical Journal |
Volume | 140 |
Issue number | 6 |
DOIs | |
State | Published - Dec 2010 |
Externally published | Yes |
Keywords
- Infrared: stars
- Planetary nebulae: individual (NGC 1514)
- Surveys
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science