• Corpus ID: 54070919

Parametrising Star Formation Histories

  title={Parametrising Star Formation Histories},
  author={Vimal Simha and David H. Weinberg and Charlie Conroy and Romeel Dav{\'e} and Mark A. Fardal and Neal Katz and Benjamin D. Oppenheimer},
  journal={arXiv: Astrophysics of Galaxies},
We examine the star formation histories (SFHs) of galaxies in smoothed particle hydrodynamics (SPH) simulations, compare them to parametric models that are commonly used in fitting observed galaxy spectral energy distributions, and examine the efficacy of these parametric models as practical tools for recovering the physical parameters of galaxies. The commonly used �-model, with u M� / e (t t i)/� , provides a poor match to the SFH of our SPH galaxies, with a mismatch between early and late… 

(Star)bursts of FIRE: observational signatures of bursty star formation in galaxies

Galaxy formation models are now able to reproduce observed relations such as the relation between galaxies’ star formation rates (SFRs) and stellar masses (M^*) and the stellar-mass–halo-mass

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Panchromatic spectral energy distribution fitting is a critical tool for determining the physical properties of distant galaxies, such as their stellar mass and star formation rate. One widely used

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Gladders et al. have recently suggested that the star formation histories (SFHs) of individual galaxies are characterized by a log-normal function in time, implying a slow decline rather than rapid

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Detailed modeling of the recent star formation histories (SFHs) of post-starburst (or “E+A”) galaxies is impeded by the degeneracy between the time elapsed since the starburst ended (post-burst age),

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The neutral hydrogen content of galaxies in cosmological hydrodynamic simulations

We examine the global Hi properties of galaxies in quarter-billion particle cosmological simulations using Gadget-2, focusing on how galactic outflows impact Hi content. We consider four outflow


It has long been regarded as difficult if not impossible for a cosmological model to account simultaneously for the galaxy luminosity, mass, and velocity distributions. We revisit this issue using a

Intergalactic dust extinction in hydrodynamic cosmological simulations

Recently Menard et al. (hereafter MSFR) detected a subtle but systematic change in the mean colour of quasars as a function of their projected separation from foreground galaxies, extending to

Summary: Clusters of Galaxies and the High Redshift Universe Observed in X-Rays

This Meeting featured the recent advancements in our understanding of galaxy clusters and the distant Universe, achieved by the past and new generation of X-ray satellites. I summarize here the main


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Computer Simulation Using Particles

Computer experiments using particle models A one-dimensional plasma model The simulation program Time integration schemes The particle-mesh force calculation The solution of field equations

Computer Simulation Using Particles, New York: McGraw-Hill

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