Representative Trajectories of r-Process Survey

Final abundances of the representative trajectories from the nucleosynthesis groups found in Kuske, Arcones, Reichert, ApJ 990:37 (2025). Please cite this paper when using the data provided here.

In this study, reaction network calculations were performed for 120,000 astrophysical conditions with different inital electron fractions ($Y_\mathrm{e,0}$), initial entropies ($s_\mathrm{0}$), and expansion timescales ($\tau$). All conditions are clustered into eight groups according to their final abundances, based on which of the r-process peaks are present. The representative conditions are defined as those, for which the final abundance pattern is closest to the average pattern of a group.

Group: r-Process peaks	$Y_\mathrm{e,0}^\mathrm{repr}$	$s_\mathrm{0}^\mathrm{repr}$	$\tau^\mathrm{repr}$
		($k_\mathrm{B}/\mathrm{nuc}$)	($\mathrm{ms}$)
G0: none (Fe/Ni)	0.485	3.90	0.25
G1: 1st	0.350	3.50	150.00
G2: 1st + 2nd	0.245	6.75	65.00
G3: none ($n$ / $p$ / $\alpha$)	0.465	290.00	1.00
G4: 2nd	0.310	29.00	0.25
G5: 1st + 2nd + 3rd	0.210	7.75	4.00
G6: 2nd + 3rd (ac-poor)	0.280	31.00	1.00
G7: 2nd + 3rd (ac-rich)	0.275	88.00	2.00

The files contain the final mass fractions $X(Z,A)$ of all nuclei.