Outputs (4)

Distinct distributions of elliptical and disk galaxies across the Local Supercluster as a ΛCDM prediction (2023)
Journal Article
Sawala, T., Frenk, C., Jasche, J., Johansson, P. H., & Lavaux, G. (2024). Distinct distributions of elliptical and disk galaxies across the Local Supercluster as a ΛCDM prediction. Nature Astronomy, 8(2), 247-255. https://doi.org/10.1038/s41550-023-02130-6

Galaxies of different types are not equally distributed in the Local Universe. In particular, the supergalactic plane is prominent among the brightest ellipticals, but inconspicuous among the brightest disk galaxies. This striking difference provides... Read More about Distinct distributions of elliptical and disk galaxies across the Local Supercluster as a ΛCDM prediction.

The timeless timing argument and the total mass of the Local Group (2023)
Journal Article
Sawala, T., Peñarrubia, J., Liao, S., & Johansson, P. H. (2023). The timeless timing argument and the total mass of the Local Group. Monthly Notices of the Royal Astronomical Society: Letters, 526(1), L77–L82. https://doi.org/10.1093/mnrasl/slad118

The timing argument connects the motion of a two-body system to its mass in an expanding Universe with a finite age, under the assumption that it has evolved on a self-gravitating orbit. It is commonly applied to the present-day Milky Way (MW)–M31 sy... Read More about The timeless timing argument and the total mass of the Local Group.

The Local Group’s mass: probably no more than the sum of its parts (2023)
Journal Article
Sawala, T., Teeriaho, M., & Johansson, P. H. (2023). The Local Group’s mass: probably no more than the sum of its parts. Monthly Notices of the Royal Astronomical Society, 521(4), 4863-4877. https://doi.org/10.1093/mnras/stad883

Modelling the accretion and feedback of supermassive black hole binaries in gas-rich galaxy mergers (2023)
Journal Article
Liao, S., Johansson, P. H., Mannerkoski, M., Irodotou, D., Rizzuto, F. P., McAlpine, S., …Sawala, T. (2023). Modelling the accretion and feedback of supermassive black hole binaries in gas-rich galaxy mergers. Monthly Notices of the Royal Astronomical Society, 520(3), 4463-4489. https://doi.org/10.1093/mnras/stad412

We introduce a new model for the accretion and feedback of supermassive black hole (SMBH) binaries to the KETJU code, which enables us to resolve the evolution of SMBH binaries down to separations of tens of Schwarzschild radii in gas-rich galaxy mer... Read More about Modelling the accretion and feedback of supermassive black hole binaries in gas-rich galaxy mergers.