Conveners
Science parallel session
- Matthew Wingate (University of Cambridge)
Science parallel session
- Matthew Wingate (University of Cambridge)
Prof.
Christine Davies
(University of Glasgow)
08/09/2016, 14:00
Science parallel talk
We report on the HPQCD calculation of the u/d HVP contribution to a_mu, discussed in arXiv:1601.03071. This allows us to obtain a total HVP contribution from u, d, s and c quarks and including an estimate of disconnected pieces and QED and isospin effects of 666(6)(12) x 10^{-10}.
Our result implies a discrepancy between the experimental determination of a_mu and the Standard Model of 3...
Dr
Eugene Lim
(King's College London)
08/09/2016, 14:30
Science parallel talk
We investigate the robustness of inflation to inhomogenous initial conditions using the numerical relativity package GRCHOMBO. We show that small field inflation is generally less robust than large field inflation. Furthermore, we show that while increasing inhomogeneities can lead to the formation of black holes during inflation, the black holes will not achieve the Nariai mass and hence will...
Mr
Matthew Smith
(Institute of Astronomy, Cambridge)
08/09/2016, 14:50
Science parallel talk
The accurate modelling of stellar feedback from massive stars to the interstellar medium (ISM) is of crucial importance for understanding galaxy formation. Failure to include these processes in hydrodynamic simulations leads to the catastrophic overproduction of stars relative to observations. Supernovae (SNe) and winds from massive stars are a major source of stellar feedback but correctly...
Mr
Sergio Martin-Alvarez
(University of Oxford)
08/09/2016, 15:10
Science parallel talk
Regardless of being acknowledged as a relevant factor in several astrophysical processes, the study of magnetic fields has been one of the most elusive areas of cosmology and galaxy evolution up to this day. The reason for it are both the complications associated with their observation and measurements, and the intricate difficulty to model them. However, the resources required to tackle them...
Ms
Ricarda Beckmann
(University of Oxford)
08/09/2016, 16:00
Science parallel talk
The growth of supermassive black holes (SMBHs) powering quasars at redshift z=6 and above is still poorly understood. Efforts so far have either concentrated on black hole (BH) seed formation mechanisms, or approximated the SMBHs using massive seeds in low resolution simulations. The work presented here will bridge the gap, following the growth of a SMBH from its origins as a stellar mass seed...
Dr
Richard Booth
(Institute of Astronomy, Cambridge, UK)
08/09/2016, 16:20
Science parallel talk
Planet formation occurs in accretion discs that surround young stars. Using DiRAC we have been able to characterize the dynamics of these discs throughout the various stages of their evolution from massive, self-gravity dominated discs through to their eventual dispersal through photo-evaporation. I will present new insights that have arisen out of these simulations on topics including...
Dr
James Wurster
(University of Exeter)
08/09/2016, 16:40
Science parallel talk
Numerical simulations are required to model the complicated physical processes that occur during the formation of a star. As we learn more about the star formation process, we begin to include even more complex processes, which can become numerically expensive. Thus, not only is the new physics required, but so are novel algorithms and HPC facilities.
I will discuss our research on star...
