Modelling high-z emission lines

Low grav. tides

Large grav. tides

Model [i]

Based on RAMSES-RT (Rosdahl+13)
Out-of-equilibrium chemistry (Katz 23)
Primordial species: $\text{H~{\small I}-{\small II}}$ , $\text{He~{\small I}-{\small III}}$ , $e^{-}$
Metal ions: $\text{C~{\small I}-{\small VI}}$ , $\text{N~{\small I}-{\small VII}}$ , $\text{O~{\small I}-{\small VIII}}$ , $\text{Ne~{\small I}-{\small X}}$ , $\text{Mg~{\small I}-{\small X}}$ , $\text{Si~{\small I}-{\small XI}}$ , $\text{S~{\small I}-{\small XI}}$ & $\text{Fe~{\small I}-{\small XI}}$
Molecules: $\text{H}_2$ & $\text{CO}$
Dust model (Rémy-Ruyer+14)
Assuming dust-to-gass ratio
Heating & Cooling
photoheating, photoelectric heating, excitation/dissociation heating, primordial, dust recombination, dust-gas collisions, metal lines
- $\text{C~{\small I}}$ , $\text{C~{\small II}}$ , $\text{N~{\small II}}$ , $\text{O~{\small I}}$ , $\text{O~{\small III}}$ , $\text{Ne~{\small II}}$ , $\text{Si~{\small I}}$ , $\text{Si~{\small II}}$ , $\text{S~{\small I}}$ , $\text{Fe~{\small I}}$ , $\text{Fe~{\small II}}$ @ $T<10^4\,\mathrm{K}$
- CLOUDY tables @ $T>10^4\,\mathrm{K}$

$\text{O\small{II}}$

$\text{O\small{I}}$

$\text{N\small{I}}$

$\text{Mg\small{II}}$

$\text{Ne\small{II}}$

$\text{CO}$

$\rho$

$v_r$

$\text{O\small{III}}$

Turbulence-based star formation (Padoan & Nordlund 11, Agertz+21)
$\dot{\rho_\star} = \varepsilon_\star\rho/t_\mathrm{ff}$
- if $Z<10^{-6}Z_\odot$ ⇒ Pop. III
- if $Z\geq10^{-6}Z_\odot$ ⇒ Pop. I & II, Kroupa
$M_\star = 500\,\mathrm{M}_\odot$
$M_{\star,\rm III} \sim 100\,\mathrm{M}_\odot$
Feedback (Agertz+21; Rey+23)
core-collapse SN, type Ia, winds + HN (Nomoto+06).
Yields (Limongi & Chieffi 18)
AGB winds (Ritter+18)

MW analogue @ $z=0$
Genetically engineered to form earlier
ICs generated with genetIC
2 main runs
- constant physical $\Delta x_\mathrm{min} \approx 20-40\,\mathrm{pc}$
- constant comoving $\Delta x_\mathrm{min}(z=2) = 20\,\mathrm{pc}$
  $\Delta x_\mathrm{min}(z=5)=10\,\mathrm{pc}$
  $\Delta x_\mathrm{min}(z=14)=4\,\mathrm{pc}$