MHD simulations show CNM clouds are elongated along the local magnetic field with lower disorder per column density than the WNM, explaining the f_CNM-polarization trend for low-cloud-count sightlines.
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Realistic ISM fluctuations from TIGRESS-NCR MHD simulations drive stellar radial heating with σ_R ∝ t^{1/2} (early, cold) and t^{1/5} (late, warm) plus substantial migration explained by quasilinear theory with λ_* ~600 pc and τ_* ~70 Myr.
A new HI absorption survey with ASKAP detects cold gas extensively across the Magellanic system, finding a cold neutral medium fraction of 0.12 in the Bridge similar to the SMC.
Geometry of temperature isosurfaces controls the PDF shape in turbulent multi-phase gas, with clumps transitioning to sheets producing broader distributions.
Linear decomposition of Planck dust maps using PMO CO and EBHIS HI surveys attributes 20-40% of dust to CO gas, negligible amounts to broad warm HI, and significant fractions to narrow cold HI and CO-dark molecular gas at boundaries.
PRFM-vol and PRFM-int subgrid models, calibrated from TIGRESS, produce shorter gas depletion times than IllustrisTNG and match TIGRESS star formation rates at high resolution while remaining robust at lower resolutions.
Broad HCO+ absorption traces diffuse CO-dark H2 with f_mol=0.09, f_CNM=0.38, and CO abundance ≲10^{-5} relative to H2, undetected in CO emission or absorption below few×10^{19} cm^{-2}.
Correlations between HI velocity complexity and depolarization plus links between Faraday depth moments and neutral gas structure indicate neutral-dominated ISM regions contribute substantially to diffuse synchrotron emission and Faraday rotation.
Observational modeling of GWA and LAB survey spectra yields 19.8% CNM, 32.5% UNM and 47.8% WNM, in agreement with the TIGRESS-NCR simulation under fixed spin-temperature boundaries.
SKAO will enable HI and OH absorption surveys to characterize cold gas properties in galaxies from z=0 to beyond z=6.
Review chapter summarizing the importance of small-scale galactic magnetic fields and proposing SKA observation strategies.
citing papers explorer
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Phase-dependent magnetic coherence in the turbulent interstellar medium
MHD simulations show CNM clouds are elongated along the local magnetic field with lower disorder per column density than the WNM, explaining the f_CNM-polarization trend for low-cloud-count sightlines.
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Interstellar Medium-Driven Orbital Transport -- I. Radial Heating and Migration
Realistic ISM fluctuations from TIGRESS-NCR MHD simulations drive stellar radial heating with σ_R ∝ t^{1/2} (early, cold) and t^{1/5} (late, warm) plus substantial migration explained by quasilinear theory with λ_* ~600 pc and τ_* ~70 Myr.
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Revealing the cold skeleton of the Magellanic Clouds and the Magellanic Bridge with ASKAP
A new HI absorption survey with ASKAP detects cold gas extensively across the Magellanic system, finding a cold neutral medium fraction of 0.12 in the Bridge similar to the SMC.
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From Clumps to Sheets: Geometry Controls the Temperature PDF of Multi-Phase Gas
Geometry of temperature isosurfaces controls the PDF shape in turbulent multi-phase gas, with clumps transitioning to sheets producing broader distributions.
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PMO Polaris CO survey. II. Where is the dust?
Linear decomposition of Planck dust maps using PMO CO and EBHIS HI surveys attributes 20-40% of dust to CO gas, negligible amounts to broad warm HI, and significant fractions to narrow cold HI and CO-dark molecular gas at boundaries.
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Pressure-regulated feedback-modulated star formation as a subgrid model for galaxy formation simulations
PRFM-vol and PRFM-int subgrid models, calibrated from TIGRESS, produce shorter gas depletion times than IllustrisTNG and match TIGRESS star formation rates at high resolution while remaining robust at lower resolutions.
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CO-dark molecular gas traced by HCO$^+$ in the diffuse interstellar medium
Broad HCO+ absorption traces diffuse CO-dark H2 with f_mol=0.09, f_CNM=0.38, and CO abundance ≲10^{-5} relative to H2, undetected in CO emission or absorption below few×10^{19} cm^{-2}.
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Imprints of the Neutral Interstellar Medium on Polarized Synchrotron Emission and Faraday Rotation
Correlations between HI velocity complexity and depolarization plus links between Faraday depth moments and neutral gas structure indicate neutral-dominated ISM regions contribute substantially to diffuse synchrotron emission and Faraday rotation.
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Gas Phase Distribution in the Neutral ISM: A Comparison between Observation and Numerical Simulation
Observational modeling of GWA and LAB survey spectra yields 19.8% CNM, 32.5% UNM and 47.8% WNM, in agreement with the TIGRESS-NCR simulation under fixed spin-temperature boundaries.
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Tracing Cold Gas in Absorption Across Cosmic Time with the SKA
SKAO will enable HI and OH absorption surveys to characterize cold gas properties in galaxies from z=0 to beyond z=6.
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Small-scale Magnetic Fields in the Milky Way and Nearby Galaxies
Review chapter summarizing the importance of small-scale galactic magnetic fields and proposing SKA observation strategies.