ARCHEO

ARCHEO is a repository for inferring the natal kick and parental masses posterior of black holes in Pair-instability Supernova (PISN) gap. We study the parental black holes of GW190521 and investigate the probability that the component black holes in GW190521 are a result of black hole merger.

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Prerequisites

• Poetry: https://python-poetry.org
• GNU make: https://www.gnu.org/software/make/manual/make.html

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Usage

Please see README.md inside src folder.

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Methodology

The methodology is describe in the following paper:

[1] Carlos Araújo Álvarez, Henry W. Y. Wong, Juan Calderón Bustillo, arxiv:2404.00720

Bibtex Citation:

@article{alvarez2024kicking,
  title={Kicking time back in black-hole mergers: Ancestral masses, spins, birth recoils and hierarchical-formation viability of GW190521},
  author={{\'A}lvarez, Carlos Ara{\'u}jo and Wong, Henry WY and Bustillo, Juan Calder{\'o}n},
  journal={arXiv preprint arXiv:2404.00720},
  year={2024}
}

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Application - GW190521

We can use the scripts in the repository to estimate the parental mass and kick of component black holes in GW190521. Please find the related data of GW190521 in LIGO Document P2000158-v4. After downloading the data and modify main.yml accordingly, we can compute the results. One can also tune the prior settings at prior.yml accordingly.

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Authors

@wyhwong, @juan.calderonbustillo