Sentences with phrase «other planetary nebulae»
Such elongated shapes are common among other planetary nebulae, because thick disks of gas and dust form a waist around a dying star.
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And neither the individual nebulae, nor the stars that formed them, would have interacted with other planetary nebulae.
Not exact matches
«During the past few years our group,» says David Jones, an astrophysicist at the IAC and another of the authors on the paper, «has discovered that the planetary nebulae with the biggest discrepancies in their abundances are usually associated with binary central stars which have been through a phase with a common envelope, that is to say the process of expansion of the more massive of the two stars has meant that the other star is orbiting within its outer atmosphere, and the viscosity has brought the stars very close to one another.
[5] Since the discovery of Pease 1, only three other globular clusters have been found to host planetary nebulae: Messier 22, NGC 6441, and Palomar 6.
For decades, astronomers have suspected that planetary nebulae — dazzlingly colorful shrouds of gas cast off by dying stars — owe their weird but often symmetrical shapes to the sculpting magnetic forces of two stars orbiting each other at the nebula's center.
Like other stars of its ilk, the sun will unfurl into nature's premier work of art: a planetary nebula
Like many other so - called planetary nebulae, IC 4406 exhibits a high degree of symmetry.
Similar knots have been discovered in other nearby planetary nebulae that are all part of the same evolutionary scheme.
The gaseous clouds known as planetary nebulae are only superficially similar to other types of nebulae.
IC 4406 the Retina Nebula, a planetary nebulae, exhibits a high degree of symmetry; the left and right halves of the Hubble image are nearly mirror images of the other.