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Saguaro Galaxy

All articles tagged with #saguaro galaxy

JWST imagery hints the 'little red dots' are distant galactic cores, not new objects
space-and-astronomy2 months ago

JWST imagery hints the 'little red dots' are distant galactic cores, not new objects

New JWST imagery suggests the enigmatic 'little red dots' seen in deep-field images are likely ordinary distant galaxies whose bright centers outshine the rest, rather than a new class of object. Researchers used the nearby spiral galaxy Saguaro (about 3.3 billion years after the Big Bang) to model how such galaxies would look at earlier epochs, showing that LRDs could be early-universe galaxies with active nuclei and offering clues about how galaxies and their central black holes grew over cosmic time.

Webb's Saguaro image reframes the little red dots puzzle
space2 months ago

Webb's Saguaro image reframes the little red dots puzzle

A new JWST view of the nearby Saguaro galaxy helps explain the universe’s enigmatic “little red dots”: rather than vanishing, these sources may be ordinary, distant galaxies whose bright centers dominate when observed at great distances, implying LRDs are a short-lived phase in early supermassive-black-hole growth rather than a new class of objects.