First 2D Lyα RHD simulations show Lyman-alpha radiation pressure yields radiative forces of 2-16 times L_bol/c and force multipliers of 10-60, dominating other pre-supernova feedback in metal-poor environments.
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8 Pith papers cite this work, alongside 768 external citations. Polarity classification is still indexing.
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Late strange-mode pulsations from supermassive stars eject compact, nitrogen-rich gas shells that reproduce the dense circumstellar environments of Little Red Dots before the star collapses into a heavy black hole seed.
Second-epoch JWST/MIRI-MRS mid-IR spectra of SN 1987A show little overall dust evolution but inner equatorial ring fading, rapid ejecta line changes, some ER line fading, first mid-IR H2 from ejecta, and evidence that dense Fe-rich ejecta has reached the reverse shock.
Neglect of time-dependent chemistry causes steady-state analyses of H3+ observations to overestimate the cosmic-ray ionization rate by a median factor of ~3, yielding a revised mean ζ_H2 ≈ 2×10^{-17} s^{-1}.
Spatially resolved JWST spectroscopy of M82 reveals an average ortho-to-para H2 ratio half the equilibrium value, attributed to short cloud mixing timescales relative to spin conversion and recent rapid heating.
New NIR diagnostic diagrams using [C I]/Paγ and H2 1-0 O(5)/PAH 3.3μm ratios correlate with radiation field hardness and distinguish star formation, AGN, and shock excitation in galaxy nuclei.
UV-bright companions to Little Red Dots provide Lyman-Werner fluxes of J21 ~ 10^2.5-10^5 that can suppress H2 cooling and enable direct collapse to massive black holes.
The chapter proposes SKA spectroscopic surveys of the inner and outer Milky Way using OH, CH, radio recombination lines, and H2CO to study molecular cloud formation, ionized gas properties, and CO-dark molecular gas.
citing papers explorer
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Lyman-alpha Pressure Strongly Enhances Pre-Supernova Feedback at Cosmic Dawn: The First Multi-Dimensional Lyman-alpha Radiation Hydrodynamics Simulations
First 2D Lyα RHD simulations show Lyman-alpha radiation pressure yields radiative forces of 2-16 times L_bol/c and force multipliers of 10-60, dominating other pre-supernova feedback in metal-poor environments.
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Pulsational mass loss from supermassive stars creates the compact shells of Little Red Dots
Late strange-mode pulsations from supermassive stars eject compact, nitrogen-rich gas shells that reproduce the dense circumstellar environments of Little Red Dots before the star collapses into a heavy black hole seed.
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The evolution of the mid-infrared spectrum of SN 1987A observed with the JWST/MIRI-MRS
Second-epoch JWST/MIRI-MRS mid-IR spectra of SN 1987A show little overall dust evolution but inner equatorial ring fading, rapid ejecta line changes, some ER line fading, first mid-IR H2 from ejecta, and evidence that dense Fe-rich ejecta has reached the reverse shock.
-
The cosmic ray ionization rate from H3+ observations can be overestimated due to neglect of time-dependent chemistry
Neglect of time-dependent chemistry causes steady-state analyses of H3+ observations to overestimate the cosmic-ray ionization rate by a median factor of ~3, yielding a revised mean ζ_H2 ≈ 2×10^{-17} s^{-1}.
-
JWST Observations of Starbursts: Molecular Hydrogen Excitation and Disequilibrium in M82
Spatially resolved JWST spectroscopy of M82 reveals an average ortho-to-para H2 ratio half the equilibrium value, attributed to short cloud mixing timescales relative to spin conversion and recent rapid heating.
-
Near-infrared diagnostic diagrams of the gas ionization sources in nearby galaxies: a JWST NIRSpec view
New NIR diagnostic diagrams using [C I]/Paγ and H2 1-0 O(5)/PAH 3.3μm ratios correlate with radiation field hardness and distinguish star formation, AGN, and shock excitation in galaxy nuclei.
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Connecting the Dots: UV-Bright Companions of Little Red Dots as Lyman-Werner Sources Enabling Direct Collapse Black Hole Formation
UV-bright companions to Little Red Dots provide Lyman-Werner fluxes of J21 ~ 10^2.5-10^5 that can suppress H2 cooling and enable direct collapse to massive black holes.
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Spectroscopic surveys with the SKA probing the ionized and molecular Milky Way
The chapter proposes SKA spectroscopic surveys of the inner and outer Milky Way using OH, CH, radio recombination lines, and H2CO to study molecular cloud formation, ionized gas properties, and CO-dark molecular gas.