Preprint

1. Albert Escrivà, Tomohiro Harada, Kazunori Kohri, Takahiro Terada and Chul-Moon Yoo, “Gravitational wave emission from nonspherical collapse in an early matter-dominated era using N-body simulations,” [arXiv:2605.04487 [astro-ph.CO]].
2. Luis E. Padilla, Tomohiro Harada, Ethan Milligan and David Mulryne, “Cosmological discrete self-similarity in primordial black hole formation,” [arXiv:2604.21520 [astro-ph.CO]].
3. Masahiro Shimano, Tomohiro Harada and Naoki Tsukamoto, “A trapped surface in the higher-dimensional self-similar Vaidya spacetime,” arXiv:1108.3471 [gr-qc].