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Theory of stellar convection II: first stellar models
S. Pasetto, C. Chiosi, E. Chiosi +2
We present here the first stellar models on the Hertzsprung-Russell diagram (HRD), in which convection is treated according to the novel scale-free convection theory (SFC theory) b…
On Weak Lensing Shape Noise
Sami-Matias Niemi, Thomas Kitching, Mark Cropper
One of the most powerful techniques to study the dark sector of the Universe is weak gravitational lensing. In practice, to infer the reduced shear, weak lensing measures galaxy sh…
On Scale-Dependent Cosmic Shear Systematic Effects
T. D. Kitching, A. N. Taylor, M. Cropper +4
In this paper we investigate the impact that realistic scale-dependence systematic effects may have on cosmic shear tomography. We model spatially varying residual ellipticity and…
How well can Charge Transfer Inefficiency be corrected? A parameter sensitivity study for iterative correction
Holger Israel, Richard Massey, Thibaut Prod'homme +9
Radiation damage to space-based Charge-Coupled Device (CCD) detectors creates defects which result in an increasing Charge Transfer Inefficiency (CTI) that causes spurious image tr…
Spiral and bar driven peculiar velocities in Milky Way sized galaxy simulations
Robert J. J. Grand, Jo Bovy, Daisuke Kawata +5
We investigate the kinematic signatures induced by spiral and bar structure in a set of simulations of Milky Way-sized spiral disc galaxies. The set includes test particle simulati…
Stellar Motion around Spiral Arms: Gaia Mock Data
D. Kawata, J. A. S. Hunt, R. J. J. Grand +3
We compare the stellar motion around a spiral arm created in two different scenarios, transient/co-rotating spiral arms and density-wave-like spiral arms. We generate Gaia mock dat…