ASCL Code Record
[ascl:2508.017]
SIGWAY: Compute second-order, scalar induced gravitational wave signals
El Gammal, Jonas; Ghaleb, Aya; Franciolini, Gabriele; Papanikolaou, Theodoros; Peloso, Marco; Perna, Gabriele; Pieroni, Mauro; Ricciardone, Angelo; Rosati, Robert; Tasinato, Gianmassimo; Braglia, Matteo; Fumagalli, Jacopo; Kume, Jun'ya; Morgante, Enrico; Nardini, Germano; Racco, Davide; Renaux-Petel, Sébastien; Veermäe, Hardi; Werth, Denis; Zavala, Ivonne; LISA Cosmology Working Group
The SIGWAY data analysis pipeline computes second-order, scalar induced gravitational wave signals emitted by curvature perturbations in the early universe. The package solves the Mukhanov-Sasaki equation for single field ultra-slow roll inflationary models and computes the primordial scalar power spectrum Pζ. SIGWAY also computes the second order gravitational wave power spectrum ΩGW from P ζ for reentry during radiation domination or a phase of early matter domination.
- Code site:
- https://github.com/jonaselgammal/SIGWAY
- Described in:
- https://ui.adsabs.harvard.edu/abs/2025JCAP...05..062G
- Bibcode:
- 2025ascl.soft08017E
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