A CNN with attention and shared latent space recovers SFHs and metallicities from spectro-photometric data with ~0.12 dex age and ~0.03 dex metallicity dispersion while running thousands of times faster than full spectral fitting.
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JWST observations of Terzan 5 reveal multiple stellar populations with ages of 12.5 and 4.7 Gyr, plus hints of a 3.8 Gyr component, suggesting a multi-epoch formation history.
Palomar 15 has [Fe/H] = -1.94 dex with no significant abundance spreads, alpha-element patterns typical of outer halo objects, and one star showing elevated Na and Al suggestive of multiple populations.
Five halo substructures (disk, Splash, GSE, Thamnos1, Thamnos2) are recovered with distinct chemo-dynamical properties supporting extragalactic origins.
citing papers explorer
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Determining star formation histories and age-metallicity relations with convolutional neural networks
A CNN with attention and shared latent space recovers SFHs and metallicities from spectro-photometric data with ~0.12 dex age and ~0.03 dex metallicity dispersion while running thousands of times faster than full spectral fitting.
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The multi-age stellar populations of Terzan 5 as revealed by JWST
JWST observations of Terzan 5 reveal multiple stellar populations with ages of 12.5 and 4.7 Gyr, plus hints of a 3.8 Gyr component, suggesting a multi-epoch formation history.
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Chemical composition of the outer halo globular cluster Palomar 15
Palomar 15 has [Fe/H] = -1.94 dex with no significant abundance spreads, alpha-element patterns typical of outer halo objects, and one star showing elevated Na and Al suggestive of multiple populations.
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Searching for and characterizing halo substructures with the GALAH DR4 survey
Five halo substructures (disk, Splash, GSE, Thamnos1, Thamnos2) are recovered with distinct chemo-dynamical properties supporting extragalactic origins.