Four faint red point sources near critical curves in JWST images of Abell S1063 are interpreted as extremely magnified AGB stars and a yellow supergiant at cosmic noon.
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SBF distances from HST place the trail dwarfs at ~20 Mpc, inconsistent with the NGC 1035 foreground, while DF2 is revised to 17.7 Mpc matching JWST TRGB at 17.6 Mpc.
JWST TRGB distances to 10 SN Ia hosts update calibrations for 11 SNe yielding H0 of 68.4-69.6 km/s/Mpc and show modest shifts when combined with prior HST data.
Homogeneous [Fe/H] measurements for 334 Local Volume galaxies reveal a luminosity-metallicity relation [Fe/H] = -2.6 - 0.075 M_B with a distribution peaking at -1.89 dex.
A review of late-universe models concludes that DESI BAO plus uncalibrated supernovae data indicate the Hubble tension originates in new low-redshift physics.
citing papers explorer
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Other red dots: A possible GLIMPSE of normal AGB stars at Cosmic Noon through extreme lensing
Four faint red point sources near critical curves in JWST images of Abell S1063 are interpreted as extremely magnified AGB stars and a yellow supergiant at cosmic noon.
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New Measurements of Distances to Galaxies in the NGC 1052 Field with the Hubble and James Webb Space Telescopes: Testing the Bullet-Dwarf Origin of the Trail
SBF distances from HST place the trail dwarfs at ~20 Mpc, inconsistent with the NGC 1035 foreground, while DF2 is revised to 17.7 Mpc matching JWST TRGB at 17.6 Mpc.
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The Chicago Carnegie Hubble Program: Improving the Calibration of SNe Ia with JWST Measurements of the Tip of the Red Giant Branch
JWST TRGB distances to 10 SN Ia hosts update calibrations for 11 SNe yielding H0 of 68.4-69.6 km/s/Mpc and show modest shifts when combined with prior HST data.
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The Metal Content of Resolved Galaxies
Homogeneous [Fe/H] measurements for 334 Local Volume galaxies reveal a luminosity-metallicity relation [Fe/H] = -2.6 - 0.075 M_B with a distribution peaking at -1.89 dex.