Simulations with realistic patchy reionization show that the diversity of ultra-faint dwarf galaxies is primarily controlled by the halo mass at the moment of reionization.
The UMIST database for astrochemistry 2012
7 Pith papers cite this work. Polarity classification is still indexing.
abstract
We present the fifth release of the UMIST Database for Astrochemistry (UDfA). The new reaction network contains 6173 gas-phase reactions, involving 467 species, 47 of which are new to this release. We have updated rate coefficients across all reaction types. We have included 1171 new anion reactions and updated and reviewed all photorates. In addition to the usual reaction network, we also now include, for download, state-specific deuterated rate coefficients, deuterium exchange reactions and a list of surface binding energies for many neutral species. Where possible, we have referenced the original source of all new and existing data. We have tested the main reaction network using a dark cloud model and a carbon-rich circumstellar envelope model. We present and briefly discuss the results of these models.
years
2026 7representative citing papers
Routine accretion variability in young stars can explain the moderate mid-infrared line flux variations observed in non-outbursting protoplanetary disks.
In SN 1987A's inner ejecta, HCO+ is co-spatial with CO, and its two-line RADEX mass of 3–9×10^-6 solar masses implies hydrogen was mixed into the carbon-oxygen zones.
COLIBRE simulations find the galaxy gas-phase MZR already in place at z≈10 with little evolution until z≈5, then shallowens at low z, with high-mass turnover set by AGN feedback and low-mass end by core-collapse supernovae.
Extreme HCO+ abundances above 10^-4 appear in protostellar and shocked gas models only when the chemical network omits the destruction reaction C + HCO+ -> CO + CH+.
HINSA observations show CRIR decreasing with H2 column density in both clouds, with IC 348 values an order of magnitude above NGC 1333, modeled as an order-of-magnitude difference in low-energy CR populations from local acceleration sources.
citing papers explorer
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RIGEL: Ultra-faint dwarf galaxy diversity shaped by inhomogeneous cosmic reionization
Simulations with realistic patchy reionization show that the diversity of ultra-faint dwarf galaxies is primarily controlled by the halo mass at the moment of reionization.
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The Effect of X-Ray and Accretion Variability on Mid-Infrared Lines in the Young Disk-Bearing Binary DQ Tau
Routine accretion variability in young stars can explain the moderate mid-infrared line flux variations observed in non-outbursting protoplanetary disks.
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HCO$^+$ and the Effect of Mixing in SN 1987A
In SN 1987A's inner ejecta, HCO+ is co-spatial with CO, and its two-line RADEX mass of 3–9×10^-6 solar masses implies hydrogen was mixed into the carbon-oxygen zones.
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The evolution of the galaxy gas-phase mass-metallicity relation from $z=15$ to $z=0$ in the COLIBRE cosmological simulations
COLIBRE simulations find the galaxy gas-phase MZR already in place at z≈10 with little evolution until z≈5, then shallowens at low z, with high-mass turnover set by AGN feedback and low-mass end by core-collapse supernovae.
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The curious case of HCO$^+$: Extreme abundances under extreme conditions
Extreme HCO+ abundances above 10^-4 appear in protostellar and shocked gas models only when the chemical network omits the destruction reaction C + HCO+ -> CO + CH+.
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A HINSA view of cosmic-ray ionization in IC 348 and NGC 1333: evidence for a strong low-energy cosmic-ray disparity
HINSA observations show CRIR decreasing with H2 column density in both clouds, with IC 348 values an order of magnitude above NGC 1333, modeled as an order-of-magnitude difference in low-energy CR populations from local acceleration sources.
- Dust and Gas Transport in Substructured Nonideal MHD Wind-Launching Disks with Embedded Planets