Publications

For a comprehensive list of publications, see inspire or arXiv.

Theses

Bosonic fields in strong-field gravity
PhD Thesis

Gravitational wave signatures of ultralight vector bosons from black hole superradiance
Master’s Thesis

Gravitational waves from spinning binary black holes at leading post-Newtonian orders at all orders in spin
Bachelor’s Thesis

Global properties of locally spherically symmetric solutions in Gauss-Bonnet gravity
Honor’s Thesis

White Papers

C. Bambi et al. (incl. N. Siemonsen), ”Black hole mimickers: from theory to observation”, arXiv:2505.09014

M. Baryakhtar et al. (incl. N. Siemonsen), ”Dark Matter in Extreme Astrophysical Environments”, 2022 Snowmass Summer Study, arXiv:2203.07984

Papers

T. Evstafyeva, N. Siemonsen, and W. E. East, “Assessing the stability of ultracompact spinning boson stars with nonlinear evolutions,” (2025), arXiv:2508.11527

P. S. Aswathi, W. E. East, N. Siemonsen, L. Sun, and D. Jones, “Ultralight boson constraints from gravitational wave observations of spinning binary black holes,” (2025), arXiv:2507.20979

M. A. Fedderke, J. Huang, and N. Siemonsen, “Periodic Cosmic String Formation and Dynamics,” JHEP 08, 080 (2025), arXiv:2503.03116

L. Mirasola and others (incl. N. Siemonsen), “Search for continuous gravitational wave signals from luminous dark photon superradiance clouds with LVK O3 observations,” Phys. Rev. D 111, 084032 (2025), arXiv:2501.02052

D. Jones, N. Siemonsen, L. Sun, W. E. East, A. L. Miller, K. Wette, and O. J. Piccinni, “Methodology for constraining ultralight vector bosons with gravitational wave searches targeting merger remnant black holes,” Phys. Rev. D 111, 063028 (2025), arXiv:2412.00320

T. May, W. E. East, and N. Siemonsen, “Self-gravity effects of ultralight boson clouds formed by black hole superradiance,” Phys. Rev. D 111, 044062 (2025), arXiv:2410.21442

N. Siemonsen, “Nonlinear Treatment of a Black Hole Mimicker Ringdown,” Phys. Rev. Lett. 133, 031401 (2024), arXiv:2404.14536

W. E. East and N. Siemonsen, “Instability and backreaction of massive spin-2 fields around black holes,” Phys. Rev. D 108, 124048 (2023), arXiv:2309.05096

N. Siemonsen and W. E. East, “Generic initial data for binary boson stars,” Phys. Rev. D 108, 124015 (2023), arXiv:2306.17265

D. Jones, L. Sun, N. Siemonsen, W. E. East, S. M. Scott, and K. Wette, “Methods and prospects for gravitational-wave searches targeting ultralight vector-boson clouds around known black holes,” Phys. Rev. D 108, 064001 (2023), arXiv:2305.00401

N. Siemonsen and W. E. East, “Binary boson stars: Merger dynamics and formation of rotating remnant stars,” Phys. Rev. D 107, 124018 (2023), arXiv:2302.06627

N. Siemonsen, C. Mondino, D. Egana-Ugrinovic, J. Huang, M. Baryakhtar, and W. E. East, “Dark photon superradiance: Electrodynamics and multimessenger signals,” Phys. Rev. D 107, 075025 (2023), arXiv:2212.09772

N. Siemonsen, T. May, and W. E. East, “Modeling the black hole superradiance gravitational waveform,” Phys. Rev. D 107, 104003 (2023), arXiv:2211.03845

Y. F. Bautista and N. Siemonsen, “Post-Newtonian waveforms from spinning scattering amplitudes,” JHEP 01, 006 (2022), arXiv:2110.12537

N. Siemonsen and W. E. East, “Stability of rotating scalar boson stars with nonlinear interactions,” Phys. Rev. D 103, 044022 (2021), arXiv:2011.08247

L. Tsukada, R. Brito, W. E. East, and N. Siemonsen, “Modeling and searching for a stochastic gravitational-wave background from ultralight vector bosons,” Phys. Rev. D 103, 083005 (2021), arXiv:2011.06995

N. Siemonsen and W. E. East, “Gravitational wave signatures of ultralight vector bosons from black hole superradiance,” Phys. Rev. D101, 024019 (2020), arXiv:1910.09476

N. Siemonsen and J. Vines, “Test black holes, scattering amplitudes and perturbations of Kerr spacetime,” Phys. Rev. D 101, 064066 (2020), arXiv:1909.07361

N. Siemonsen, J. Steinhoff, and J. Vines, “Gravitational waves from spinning binary black holes at the leading post-Newtonian orders at all orders in spin,” Phys. Rev. D97, 124046 (2018), arXiv:1712.08603