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Satoru Iguchi

1 articles · 6 co-authors · latest: 2026-07-01

The Hourglass of an Ancient Galaxy: JWST Spots Maturity That Arrived Too Soon

Analysis of images from JWST and Hubble with NIRSpec spectroscopy has revealed details of a distant disk galaxy at z=0.92. Multi-component modeling showed that an X-shaped bulge 4.5 kpc long and a bar of about 12 kpc were already present when the Universe was only 6.2 billion years old. A total stel
arXiv:2607.00982v1 · 2026-07-01