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Why do bars form in some spiral galaxies, but not in others?

astronomy.com · 20h · first report

Why do bars form in some spiral galaxies, but not in others? Joe RuszHerndon, VA We believe that stellar bars can form in any galaxy that displays ordered rotation. This includes galaxies with disks of spiral arms, but also many lenticular galaxies, which feature disks with no spiral arms. When disk galaxies are perturbed — Continue reading "Why do bars form in some spiral galaxies, but not in others?" The post Why do bars form in some spiral galaxies, but not in others? appeared first on Astronomy Magazine .

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