Davide Gerosa


Core collapse in scalar-tensor theories

This page contains supporting material and additional resources from:

  • Numerical simulations of stellar collapse in scalar-tensor theories of gravity
    Davide Gerosa, Christian Ott, Ulrich Sperhake.
    Classical and Quantum Gravity 33 (2016) 13 , 135002. arXiv:1602.06952 [gr-qc]

When using this material, please make reference to our paper. This material is also available on Christian Ott’s webpage stellarcollapse.org, together with more resources on stellar collapse.

Time domain and frequency domain waveforms for the simulations shown in Fig. 5.3, 5.4 and 5.5 of the paper can be downloaded here. A short readme is provided in the same tarball, but don’t hesitate to contact me if you have questions on our data.

Here below are animated versions of Fig. 5.1 in the paper. Animations can be downloaded here in full quality (they play well on VLC). Here is a Youtube playlist containing all movies.

HD Top panels of Fig. 5.1 from 1602.06952:

HD Middle panels of Fig. 5.1 from 1602.06952:

HD Bottom panels of Fig. 5.1 from 1602.06952:
Collapse of a Γ = 4/3 polytrope (top), the 12M⊙ (midddle) and 40M⊙ (bottom) pre- SN profiles of [90] in ST theory with α0 = 10^−4 and β0 = −4.35, assuming Γ1 = 1.3, Γ2 = 2.5 and Γth = 1.35. The evolution of the mass density ρ (left) and the scalar field φ (right) is shown as a function of the radius r at various timesteps t. Timesteps are colored from darker (early times) to lighter (late times).

Turn on HD quality using the YouTube gear!



Picture: fireworks over La Seine, Paris, France. Big explosions and small explosions.