MD simulations of 5-50 Å silicate grains find shattering thresholds of ~6 km/s for both SiO2 and astrodust compositions, twice the canonical 2.7 km/s value, with shattered size distributions inconsistent with prior power-law predictions.
Nature Astronomy , year = 2024, month = mar, volume =
5 Pith papers cite this work, alongside 51 external citations. Polarity classification is still indexing.
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High-resolution mapping reveals nitrogen enrichment around super star clusters in NGC 5253, attributed to Wolf-Rayet stars with material expelled to surrounding gas.
Radiative transfer modeling of protostellar ices shows absorption originates mainly from 1000-2000 au at the cavity-envelope transition, with apparent CO2/H2O and CO/H2O ratios potentially underestimated due to line-of-sight effects.
No change detected in ice absorption bands of EC 53 between phases, with ice abundances higher than typical for embedded protostars.
The pyRate model requires nondiffusive chemistry to form observed S-bearing species in irradiated CO2:CS2 ice but overpredicts OCS, CS and SO while underpredicting SO2 and sulfur allotropes.
citing papers explorer
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Silicate cosmic dust grain collisions in the interstellar medium: A molecular dynamics study
MD simulations of 5-50 Å silicate grains find shattering thresholds of ~6 km/s for both SiO2 and astrodust compositions, twice the canonical 2.7 km/s value, with shattered size distributions inconsistent with prior power-law predictions.
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The heart of NGC 5253 as seen with MUSE-NFM: nitrogen enrichment through stellar chemical feedback at parsec scales
High-resolution mapping reveals nitrogen enrichment around super star clusters in NGC 5253, attributed to Wolf-Rayet stars with material expelled to surrounding gas.
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CORINOS V: Radiative transfer effects in protostellar ice observations
Radiative transfer modeling of protostellar ices shows absorption originates mainly from 1000-2000 au at the cavity-envelope transition, with apparent CO2/H2O and CO/H2O ratios potentially underestimated due to line-of-sight effects.
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EPISODE IV: Ice Inventory in the Envelope of EC 53
No change detected in ice absorption bands of EC 53 between phases, with ice abundances higher than typical for embedded protostars.
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Modeling the UV-photon irradiation of CS$_2$-bearing ices in the laboratory with the pyRate gas-grain astrochemical code. New insights into the missing sulfur problem
The pyRate model requires nondiffusive chemistry to form observed S-bearing species in irradiated CO2:CS2 ice but overpredicts OCS, CS and SO while underpredicting SO2 and sulfur allotropes.