Too Big, Too Early? (High Redshift JWST Galaxies) - Lilan Yang & Mike Boylan-Kolchin

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Cosmology Talks

Cosmology Talks

Күн бұрын

Пікірлер: 6
@astronomy-channel
@astronomy-channel 19 күн бұрын
Typical Cosmology Talks/ concise yet complete! ❤❤❤ Dark Matter spherical halos have a coherent spin , matching that of the included baryons. The spinning cold DM clouds provide the gravitational well that ACCRETES the baryonic matter to a disk in the equatorial plain of the DM halo. This mechanism leads to early & robust disk galaxy formation. Thus the JWST discoveries are not at all surprising…
@NhatMinhNguyen111
@NhatMinhNguyen111 Жыл бұрын
Just a technicality on the SFR plot from Dayal & Giri 2023: I think the solid lines assume a constant SFR efficiency of 1, while the thin lines do account for the redshift and mass evolutions of this baryons->stars conversion efficiency. In fact, regardless of the DM models, redshift and mass evolutions of the SFR efficiency are required to explain the observations as indicated by the fact that the thin lines are much closer to the measurements.
@ChrisPattisonCosmo
@ChrisPattisonCosmo Жыл бұрын
Really interesting video, thanks to you all! :)
@CosmologyTalks
@CosmologyTalks Жыл бұрын
Thanks Chris.
@petemchardy3605
@petemchardy3605 Жыл бұрын
cool man thanks
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