Older Upper Scorpius disks show reduced molecular emission and hints of higher inner-gas C/O ratios than young disks, indicating chemical evolution consistent with pebble drift.
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F., Ansdell, M., Rosotti, G
19 Pith papers cite this work, alongside 83 external citations. Polarity classification is still indexing.
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JWST/MIRI survey of 2-6 Myr Upper Scorpius disks finds diverse chemotypes, 10-1000x lower water luminosities, and evidence that outer dust traps control inner-disk chemistry.
A new grid of disk models with grain-surface CO chemistry plus an ML inference tool produces gas mass estimates from ALMA observations that match independent dynamical and HD values without requiring extreme elemental depletion.
Self-consistent curved dust wall models for T Tauri disks indicate that matching observed JHK colors requires millimeter grains lifted 0.5-3 scale heights above the midplane, implying high midplane turbulence.
JWST observations of Sz 65 and Sz 66 reveal higher cold-to-hot water ratios in the secondary disk, attributed to its unstructured dust disk enabling efficient pebble drift across the snow line.
MHD wind-driven accretion in protoplanetary disks follows a power-law scaling with midplane plasma beta, effective ambipolar Elsasser number, and active-layer thickness, reproducing simulations to roughly a factor of 2–3 for most runs.
X-Shooter survey of 127 Upper Scorpius disks finds no correlation between accretion rate and disk dust mass or gas radius, with increased dispersion versus younger regions suggesting inner-outer disk decoupling.
JWST spectra of EC 53 indicate CO fundamental and H2O bending absorption weaken by ~2 during burst due to continuum dilution, with relative veiling yielding hot-continuum ratios of 2.9 and 1.71 and viscous-disk accretion-rate ratios of ~3.6 and ~2.0.
ALMA survey detects H2CO in 45% of 20 disks and finds strong correlations of line luminosity with disk size, mass, and stellar luminosity, suggesting grain-surface formation.
Microlensing-inferred free-floating planets plus bound planets require more mass than protoplanetary disks supply, even at 100% conversion efficiency, potentially creating a crisis if the mass function is bottom-heavy.
Accretion increases observable water mass in disks by expanding the emitting area via higher central luminosity, while viscous heating has no effect.
Compact protoplanetary discs disperse inside-out when photoevaporation is limited to their cut-off radius, unlike the outside-in dispersal seen in extended discs.
ALMA observations of 100 Ophiuchus discs show substructures linked to giant planet formation are common in discs above 10 Earth masses of dust and increase from Class I to Class II stages.
Halos in Elias 2-24, IM Lup, and DM Tau hold 20-30% of total dust mass with cm-sized grains, helping resolve the disk mass-budget problem even though drift and growth timescales are shorter than disk ages.
Dual-frequency monitoring detects 20 radio sources in the Coronet Cluster, showing steeper spectral indices in Class 0/I YSOs than in Class II and ubiquitous variability independent of stage.
Stronger radiation environments produce more massive, hotter protostellar discs whose fragments are large and disruptive rather than planetary-mass.
Gaia astrometric quality metrics and a machine-learning classifier trained on known exoplanet hosts identify candidate stars with debris disks likely to host undetected planets.
A millimeter survey detects disks around five Herbig Be stars and shows no evidence of rapid disk dissipation with increasing stellar mass.
ALMA observed 3933 independent coordinates in nearby star-forming regions for disks and planet formation, analyzed by sky location, frequency coverage, exposure time, spectral lines, and angular resolution.
citing papers explorer
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Chemical Divergence and Water Depletion: Gas Properties of Evolved Upper Scorpius Disks Revealed by JWST/MIRI
JWST/MIRI survey of 2-6 Myr Upper Scorpius disks finds diverse chemotypes, 10-1000x lower water luminosities, and evidence that outer dust traps control inner-disk chemistry.
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From Young to Older Disks: JWST/MIRI Evidence for Fading Molecular Emission and Hints for Elevated C/O in Upper Scorpius
Older Upper Scorpius disks show reduced molecular emission and hints of higher inner-gas C/O ratios than young disks, indicating chemical evolution consistent with pebble drift.
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DiskMINT-GARDEN: Self-consistent Models to Estimate Disk Masses
A new grid of disk models with grain-surface CO chemistry plus an ML inference tool produces gas mass estimates from ALMA observations that match independent dynamical and HD values without requiring extreme elemental depletion.
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Modeling the curved dust sublimation front in protoplanetary disks: a potential probe of midplane turbulence
Self-consistent curved dust wall models for T Tauri disks indicate that matching observed JHK colors requires millimeter grains lifted 0.5-3 scale heights above the midplane, implying high midplane turbulence.
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Molecular Similarity and Water Diversity in Coeval Binary Disks: JWST/MIRI Observations of Sz 65 and Sz 66
JWST observations of Sz 65 and Sz 66 reveal higher cold-to-hot water ratios in the secondary disk, attributed to its unstructured dust disk enabling efficient pebble drift across the snow line.
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Beyond the $\alpha$ model: scaling the wind-driven accretion rate in protoplanetary disks using systematic non-ideal magnetohydrodynamical simulations
MHD wind-driven accretion in protoplanetary disks follows a power-law scaling with midplane plasma beta, effective ambipolar Elsasser number, and active-layer thickness, reproducing simulations to roughly a factor of 2–3 for most runs.
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X-Shooter survey of disk accretion in Upper Scorpius II. A lack of correlation between accretion rates and disk properties
X-Shooter survey of 127 Upper Scorpius disks finds no correlation between accretion rate and disk dust mass or gas radius, with increased dispersion versus younger regions suggesting inner-outer disk decoupling.
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EPISODE II: Variability in the CO and H$_2$O rovibrational absorption lines in a periodically variable protostar EC 53
JWST spectra of EC 53 indicate CO fundamental and H2O bending absorption weaken by ~2 during burst due to continuum dilution, with relative veiling yielding hot-continuum ratios of 2.9 and 1.71 and viscous-disk accretion-rate ratios of ~3.6 and ~2.0.
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The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO): Formaldehyde (H$_2$CO) emission and its links to disk properties
ALMA survey detects H2CO in 45% of 20 disks and finds strong correlations of line luminosity with disk size, mass, and stellar luminosity, suggesting grain-surface formation.
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The Persistent Missing Mass Problem in Planet Formation
Microlensing-inferred free-floating planets plus bound planets require more mass than protoplanetary disks supply, even at 100% conversion efficiency, potentially creating a crisis if the mass function is bottom-heavy.
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JWST-DECO: The Impact of Accretion on Mid-Infrared Observable Water in Planet-forming Disks
Accretion increases observable water mass in disks by expanding the emitting area via higher central luminosity, while viscous heating has no effect.
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The dispersal of compact protoplanetary discs
Compact protoplanetary discs disperse inside-out when photoevaporation is limited to their cut-off radius, unlike the outside-in dispersal seen in extended discs.
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The Ophiuchus DIsc Survey Employing ALMA (ODISEA). Substructures as a function of SED Class and disc mass in 100 systems
ALMA observations of 100 Ophiuchus discs show substructures linked to giant planet formation are common in discs above 10 Earth masses of dust and increase from Class I to Class II stages.
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Dust characterization of halos: The extended emission in protoplanetary disks
Halos in Elias 2-24, IM Lup, and DM Tau hold 20-30% of total dust mass with cm-sized grains, helping resolve the disk mass-budget problem even though drift and growth timescales are shorter than disk ages.
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A Dual-Band Centimetre Continuum Monitoring Survey of Young Stellar Objects in the Coronet Cluster
Dual-frequency monitoring detects 20 radio sources in the Coronet Cluster, showing steeper spectral indices in Class 0/I YSOs than in Class II and ubiquitous variability independent of stage.
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The Impact of Radiation Environment on the Evolution and Fragmentation of Protostellar Discs
Stronger radiation environments produce more massive, hotter protostellar discs whose fragments are large and disruptive rather than planetary-mass.
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An astrometric search for planets in debris disk systems
Gaia astrometric quality metrics and a machine-learning classifier trained on known exoplanet hosts identify candidate stars with debris disks likely to host undetected planets.
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A $\lambda=1.3$ millimeter Survey for Disks around Herbig Be Stars
A millimeter survey detects disks around five Herbig Be stars and shows no evidence of rapid disk dissipation with increasing stellar mass.
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An archival summary: 15 years of ALMA observations on disks and planet formation
ALMA observed 3933 independent coordinates in nearby star-forming regions for disks and planet formation, analyzed by sky location, frequency coverage, exposure time, spectral lines, and angular resolution.