A data-driven decomposition of stellar abundance vectors into four latent patterns identifies distinct contributions from core-collapse supernovae, Type Ia supernovae, and AGB stars across the Milky Way disc.
Title resolution pending
12 Pith papers cite this work. Polarity classification is still indexing.
representative citing papers
Red quasars are intrinsically X-ray weak with low alpha_OX values, tracing a distinct evolutionary stage of suppressed black hole accretion relative to stellar mass growth.
Reprojects abundances of 199k stars into 4 patterns, identifying enrichment pathways with strong chemo-spatial, age, and vertical correlations plus a transition at ~6 Gyr.
DESI's instrumentation, including a 3.2-degree prime-focus corrector, 5020 fiber positioners across ten petals, and ten three-channel spectrographs, has been successfully installed and meets all performance goals for a five-year survey of 40 million galaxies and quasars.
LSST will image 18,000 square degrees of sky about 800 times across six bands over 10 years to a coadded depth of r~27.5, producing a public database of 40 billion objects and 32 trillion observations.
A blind 12D chemo-dynamical clustering analysis with UMAP and HDBSCAN on SDSS-V DR19 and Gaia DR3 data recovers seven known halo substructures and reports five new tightly bound candidates FO1-FO5.
New CO observations of low-mass late-type galaxies show the molecular gas-star formation relation remains linear, with shorter depletion times and a shift toward molecular-dominated gas at higher stellar masses.
Observational study finds spiral structure correlates with steeper metallicity gradients, larger bulges with shallower gradients and higher metallicities, but no gradient differences from bars or spiral winding tightness.
MUST is a new 6.5 m telescope designed to deliver simultaneous optical spectra for over 20,000 targets across a 5 deg² field, enabling the largest 3D spectroscopic map of the Universe with redshifts for more than 100 million objects over an 8-year survey.
Spirals paired with ellipticals show centrally suppressed star formation and higher gas-phase metallicities than spirals paired with other spirals, with the effect scaling with companion mass and gas kinematics.
Cool gas inflows occur in ~70% of red geyser galaxies at median 47 km/s, with reservoirs 7 times larger in radio-detected systems and 2.7 times larger in interacting ones, linking galaxy environment to AGN fueling and quiescence regulation.
C/N/O abundance patterns indicate that some α-rich young red giants are merger or mass-transfer products rather than genuinely young stars with anomalous chemistry.
citing papers explorer
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Milky Way Mapper decoded abundances -- I. Shared disc enrichment patterns
A data-driven decomposition of stellar abundance vectors into four latent patterns identifies distinct contributions from core-collapse supernovae, Type Ia supernovae, and AGB stars across the Milky Way disc.
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SDSS-V: Revealing a weak accretion state in X-ray selected red quasars
Red quasars are intrinsically X-ray weak with low alpha_OX values, tracing a distinct evolutionary stage of suppressed black hole accretion relative to stellar mass growth.
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Milky Way Mapper decoded abundances -- II: From patterns to paths
Reprojects abundances of 199k stars into 4 patterns, identifying enrichment pathways with strong chemo-spatial, age, and vertical correlations plus a transition at ~6 Gyr.
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Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument
DESI's instrumentation, including a 3.2-degree prime-focus corrector, 5020 fiber positioners across ten petals, and ten three-channel spectrographs, has been successfully installed and meets all performance goals for a five-year survey of 40 million galaxies and quasars.
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LSST: from Science Drivers to Reference Design and Anticipated Data Products
LSST will image 18,000 square degrees of sky about 800 times across six bands over 10 years to a coadded depth of r~27.5, producing a public database of 40 billion objects and 32 trillion observations.
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Unsupervised Chemo-Dynamical Dissection of the Inner Galactic Halo: Discovery of Five Accreted Substructures with SDSS-V and Gaia
A blind 12D chemo-dynamical clustering analysis with UMAP and HDBSCAN on SDSS-V DR19 and Gaia DR3 data recovers seven known halo substructures and reports five new tightly bound candidates FO1-FO5.
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The MaNGA Low-mass disks HUnt for CO (MaLHUCO) Survey
New CO observations of low-mass late-type galaxies show the molecular gas-star formation relation remains linear, with shorter depletion times and a shift toward molecular-dominated gas at higher stellar masses.
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The Impact of Bars, Spirals and Bulge-Size on Gas-Phase Metallicity Gradients in MaNGA Galaxies
Observational study finds spiral structure correlates with steeper metallicity gradients, larger bulges with shallower gradients and higher metallicities, but no gradient differences from bars or spiral winding tightness.
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From Large Telescopes to the MUltiplexed Survey Telescope (MUST)
MUST is a new 6.5 m telescope designed to deliver simultaneous optical spectra for over 20,000 targets across a 5 deg² field, enabling the largest 3D spectroscopic map of the Universe with redshifts for more than 100 million objects over an 8-year survey.
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Radial Distribution of Star Formation and Gas-phase Metallicity in Spiral-Elliptical Galaxy Pairs
Spirals paired with ellipticals show centrally suppressed star formation and higher gas-phase metallicities than spirals paired with other spirals, with the effect scaling with companion mass and gas kinematics.
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Galactic Rain: Cool Gas Inflows in Red Geyser Galaxies and Their Connection to AGN Activity and Interactions
Cool gas inflows occur in ~70% of red geyser galaxies at median 47 km/s, with reservoirs 7 times larger in radio-detected systems and 2.7 times larger in interacting ones, linking galaxy environment to AGN fueling and quiescence regulation.
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Origin of $\alpha$-rich young stars: clues from C, N and O
C/N/O abundance patterns indicate that some α-rich young red giants are merger or mass-transfer products rather than genuinely young stars with anomalous chemistry.