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Browsing by Author "Devriendt, J.E.G."
Now showing items 1-9 of 9
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Constraining stellar assembly and active galactic nucleus feedback at the peak epoch of star formation
Kimm, T.; Kaviraj, S.; Devriendt, J.E.G.; Dubois, Y.; Slyz, A.; Cohen, S.H.; Windhorst, R.A.; Silk, J.; Hathi, N.P.; Ryan, R.E.; O'Connell, R.W.; Dopita, M.A. (2012-09-01)We study stellar assembly and feedback from active galactic nuclei (AGN) around the epoch of peak star formation (1 ≲ z ≲ 2), by comparing hydrodynamic simulations to rest-frame UV-optical galaxy colours from the Wide Field ... -
Cosmic evolution of stellar quenching by AGN feedback : clues from the Horizon-AGN simulation
Beckmann, R. S.; Devriendt, J.E.G.; Slyz, A.; Peirani, S.; Richardson, M. L. A.; Dubois, Y.; Pichon, C.; Chisari, N. E.; Kaviraj, S.; Laigle, C.; Volonteri, M. (2017-11-21)The observed massive end of the galaxy stellar mass function is steeper than its predicted dark matter halo counterpart in the standard $\Lambda $CDM paradigm. In this paper, we investigate the impact of active galactic ... -
Density profile of dark matter haloes and galaxies in the Horizon-AGN simulation : the impact of AGN feedback
Peirani, S.; Dubois, Y.; Volonteri, M.; Devriendt, J.E.G.; Bundy, K.; Silk, J.; Pichon, C.; Kaviraj, S.; Gavazzi, R.; Habouzit, M. (2017-12-01)Using a suite of three large cosmological hydrodynamical simulations, Horizon-AGN, Horizon-noAGN (no AGN feedback) and Horizon-DM (no baryons), we investigate how a typical sub-grid model for AGN feedback affects the ... -
The elliptical galaxy colour-magnitude relation as a discriminant between the monolithic and merger paradigms
Kaviraj, S.; Devriendt, J.E.G.; Ferreras, I.; Yi, S.K. (2005-06-11)The colour-magnitude relation (CMR) of cluster elliptical galaxies has been widely used to constrain their star formation histories (SFHs) and to discriminate between the monolithic collapse and merger paradigms of elliptical ... -
GALICS II : The [ α/Fe]-mass relation in elliptical galaxies
Pipino, A.; Devriendt, J.E.G.; Silk, J.; Kaviraj, S.; Thomas, D. (2009-10-03)Aims. We test whether the mass-and σ-[α/Fe] relations in the stellar populations of early-type galaxies can be reproduced by a cosmologically motivated assembly history for spheroids.Methods. We implement a detailed treatment ... -
Identifying the progenitor set of present-day early-type galaxies : A view from the standard model
Kaviraj, S.; Ferreras, I.; Devriendt, J.E.G.; Silk, J.; Yi, S.K. (2009-08-01)We present a comprehensive theoretical study, using a semi-analytical model within the standard LCDM framework, of the photometric properties of the progenitors of present-day early-type galaxies in the redshift range 0 ... -
Identifying the progenitors of present-day early-type galaxies in observational surveys: correcting `progenitor bias' using the Horizon-AGN simulation
Martin, G.; Kaviraj, S.; Devriendt, J.E.G.; Dubois, Y.; Pichon, C.; Laigle, C. (2018-03-01)As endpoints of the hierarchical mass-assembly process, the stellar populations of local earlytype galaxies encode the assembly history of galaxies over cosmic time. We useHorizon-AGN, a cosmological hydrodynamical simulation, ... -
The limited role of galaxy mergers in driving stellar mass growth over cosmic time
Martin, G.; Kaviraj, S.; Devriendt, J.E.G.; Dubois, Y.; Laigle, C.; Pichon, C. (2017-11-21)A key unresolved question is the role that galaxy mergers play in driving stellar mass growth over cosmic time. Recent observational work hints at the possibility that the overall contribution of `major' mergers (mass ... -
UV-optical colors as probes of early-type galaxy evolution
Kaviraj, S.; Schawinski, K.; Devriendt, J.E.G.; Ferreras, I.; Khochfar, S.; Yoon, S.-J.; Yi, S.K.; Lee, Y.-W.; Deharveng, J.-M.; Boselli, A.; Donas, J.; Milliard, B.; Barlow, T.; Conrow, T.; Forster, K.; Friedman, P.G.; Martin, D.C.; Morrissey, P.; Seibert, M.; Small, T.; Wyder, T.; Neff, S.; Schiminovich, D.; Bianchi, L.; Heckman, T.; Szalay, A.; Madore, B.; Rich, R.M. (2007-12-01)We have studied ∼2100 early-type galaxies in the SDSS DR3 which have been detected by the GALEX Medium Imaging Survey (MIS), in the redshift range O <z <0.1.1. Combining GALEXUV photometry with corollary optical data from ...