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On the origin of the peak of the stellar initial mass function: exploring the tidal screening theory
Tine Colman, Romain Teyssier
Classical theories for the stellar initial mass function (IMF) predict a peak mass which scales with the properties of the molecular cloud. In this work, we explore a new theory pr…
Baryonic effects for weak lensing. Part II. Combination with X-ray data and extended cosmologies
Aurel Schneider, Alexandre Refregier, Sebastian Grandis +6
An accurate modelling of baryonic feedback effects is required to exploit the full potential of future weak-lensing surveys such as Euclid or LSST. In this second paper in a series…
Baryonic effects for weak lensing. Part I. Power spectrum and covariance matrix
Aurel Schneider, Nicola Stoira, Alexandre Refregier +4
Baryonic feedback effects lead to a suppression of the weak lensing angular power spectrum on small scales. The poorly constrained shape and amplitude of this suppression is an imp…
Molecular clouds in the Cosmic Snake normal star-forming galaxy 8 billion years ago
Miroslava Dessauges-Zavadsky, Johan Richard, Françoise Combes +12
The cold molecular gas in contemporary galaxies is structured in discrete cloud complexes. These giant molecular clouds (GMCs), with - solar masses and radii of 5-100 p…
Emission from the circumgalactic medium: from cosmological zoom-in simulations to multiwavelength observables
R. Augustin, S. Quiret, B. Milliard +14
We simulate the flux emitted from galaxy halos in order to quantify the brightness of the circumgalactic medium (CGM). We use dedicated zoom-in cosmological simulations with the hy…
Numerical Methods for Simulating Star Formation
Romain Teyssier, Benoit Commercon
We review the numerical techniques for ideal and non-ideal magneto-hydrodynamics (MHD) used in the context of star formation simulations. We outline the specific challenges offered…