At the center of the Heart Nebula is a young star born in the open cluster Melotte 15. The powerful light and stellar winds emitted by this star sculpt various forms of dust pillars. This wide ...
the precursor nebulae of objects with masses constituting a broad hierarchy evolve simultaneously. The theory yields a comprehensive set of predictions, prima facie consistent with observations, for ...
As the hotter layers of the stellar core are exposed, they produce high-energy radiation. UV and X-rays from the central star irradiate the expanding shells of ejected gas. The atoms and molecules in ...
While Webb’s image of the nebula is the latest, it likely will not be the last, as the stellar nursery is the birthplace of planets, young brown dwarfs and baby stars. “We are particularly ...
It is expected that the Sun will form a planetary nebula at the end of its life cycle. They are relatively short-lived phenomena, lasting perhaps a few tens of millennia, compared to considerably ...
ABSTRACT.Planetary nebulae (PNs) are circumstellar gas ejected during an intense mass-losing phase ... We also discuss indirect tests of this hypothesis and its implications for stellar and galactic ...
Our Sun was formed around 4.6 billion years ago from a giant cloud called a stellar nebula, mainly made up of hydrogen gas and dust. The nebula collapsed under its own gravity and, as it did ...