no code implementations • 18 Oct 2017 • Jaime Salcido, Richard G. Bower, Luke A. Barnes, Geraint F. Lewis, Pascal J. Elahi, Tom Theuns, Matthieu Schaller, Robert A. Crain, Joop Schaye
Interestingly, simulations without feedback from accreting black holes predict an upturn in the cosmic star formation rate for $t>15$ Gyr due to the rejuvenation of massive ($ > 10^{11} \mathrm{M}_{\odot}$) galaxies.
Cosmology and Nongalactic Astrophysics
no code implementations • 19 Sep 2016 • David G. Algorry, Julio F. Navarro, Mario G. Abadi, Laura V. Sales, Richard G. Bower, Robert A. Crain, Claudio Dalla Vecchia, Carlos S. Frenk, Matthieu Schaller, Joop Schaye, Tom Theuns
These discs show a wide range of bar strengths, from unbarred discs to weak bars to strongly barred systems (= 20%).
Astrophysics of Galaxies
no code implementations • 5 Sep 2016 • Alejandro Benítez-Llambay, Julio F. Navarro, Carlos S. Frenk, Till Sawala, Kyle Oman, Azadeh Fattahi, Matthieu Schaller, Joop Schaye, Robert A. Crain, Tom Theuns
We examine the baryon content of low-mass {\Lambda}CDM halos $(10^8<M_{200}/{\rm M_\odot}<5\times 10^{9})$ using the APOSTLE cosmological hydrodynamical simulations.
Astrophysics of Galaxies
no code implementations • 11 Jul 2016 • Ismael Ferrero, Julio F. Navarro, Mario G. Abadi, Laura V. Sales, Richard G. Bower, Robert A. Crain, Carlos S. Frenk, Matthieu Schaller, Joop Schaye, Tom Theuns
EAGLE galaxies evolve with lookback time following approximately the prescriptions of AM models and the observed mass-size relation of bright spirals, leading to a weak TFR evolution consistent with observation out to $z=1$.
Astrophysics of Galaxies
no code implementations • 5 Oct 2015 • Stuart McAlpine, John C. Helly, Matthieu Schaller, James W. Trayford, Yan Qu, Michelle Furlong, Richard G. Bower, Robert A. Crain, Joop Schaye, Tom Theuns, Claudio Dalla Vecchia, Carlos S. Frenk, Ian G. McCarthy, Adrian Jenkins, Yetli Rosas-Guevara, Simon D. M. White, Maarten Baes, Peter Camps, Gerard Lemson
The free parameters of the subgrid models for feedback are calibrated to the redshift z=0 galaxy stellar mass function, galaxy sizes and black hole mass - stellar mass relation.
Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics
no code implementations • 6 Jan 2015 • Robert A. Crain, Joop Schaye, Richard G. Bower, Michelle Furlong, Matthieu Schaller, Tom Theuns, Claudio Dalla Vecchia, Carlos S. Frenk, Ian G. McCarthy, John C. Helly, Adrian Jenkins, Yetli M. Rosas-Guevara, Simon D. M. White, James W. Trayford
We find that the properties of galaxies with stellar mass <~ M* (the "knee" of the galaxy stellar mass function) are largely governed by feedback associated with star formation, while those of more massive galaxies are also controlled by feedback from accretion onto their central black holes.
Astrophysics of Galaxies
1 code implementation • 25 Jul 2014 • Joop Schaye, Robert A. Crain, Richard G. Bower, Michelle Furlong, Matthieu Schaller, Tom Theuns, Claudio Dalla Vecchia, Carlos S. Frenk, I. G. McCarthy, John C. Helly, Adrian Jenkins, Y. M. Rosas-Guevara, Simon D. M. White, Maarten Baes, C. M. Booth, Peter Camps, Julio F. Navarro, Yan Qu, Alireza Rahmati, Till Sawala, Peter A. Thomas, James Trayford
Because the feedback efficiencies cannot be predicted from first principles, we calibrate them to the z~0 galaxy stellar mass function and the amplitude of the galaxy-central black hole mass relation, also taking galaxy sizes into account.
Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics
1 code implementation • 15 Apr 2013 • Gabriel Altay, Tom Theuns
We characterise the errors in our implementation in stages beginning with comparison to known analytic solutions and ending with a realistic model of the z = 3 cosmological UV background incident onto a suite of spherically symmetric models of gaseous galactic halos.
Cosmology and Nongalactic Astrophysics
no code implementations • 28 Sep 2009 • Joop Schaye, Claudio Dalla Vecchia, C. M. Booth, Robert P. C. Wiersma, Tom Theuns, Marcel R. Haas, Serena Bertone, Alan R. Duffy, I. G. McCarthy, Freeke van de Voort
Galaxies form stars in a self-regulated fashion at a rate controlled by the balance between, on the one hand, feedback from massive stars and black holes and, on the other hand, gas cooling and accretion.
Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies
