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The birthplace and age of the isolated neutron star RX J1856.5-3754
R. P. Mignani, D. Vande Putte, M. Cropper +6
X-ray observations unveiled various types of radio-silent Isolated Neutron Stars (INSs), phenomenologically very diverse, e.g. the Myr old X-ray Dim INS (XDINSs) and the kyr old ma…
On the shear estimation bias induced by the spatial variation of colour across galaxy profiles
Elisabetta Semboloni, Henk Hoekstra, Zhuoyi Huang +13
The spatial variation of the colour of a galaxy may introduce a bias in the measurement of its shape if the PSF profile depends on wavelength. We study how this bias depends on the…
Origins of weak lensing systematics, and requirements on future instrumentation (or knowledge of instrumentation)
Richard Massey, Henk Hoekstra, Thomas Kitching +11
The first half of this paper explores the origin of systematic biases in the measurement of weak gravitational lensing. Compared to previous work, we expand the investigation of PS…
Defining a weak lensing experiment in space
Mark Cropper, Henk Hoekstra, Thomas Kitching +9
This paper describes the definition of a typical next-generation space-based weak gravitational lensing experiment. We first adopt a set of top-level science requirements from the…
Spiral arm pitch angle and galactic shear rate in N-body simulations of disc galaxies
Robert J. J. Grand, Daisuke Kawata, Mark Cropper
Spiral galaxies are observed to exhibit a range of morphologies, in particular in the shape of spiral arms. A key diagnostic parameter is the pitch angle, which describes how tight…
The XMM-Newton serendipitous ultraviolet source survey catalogue
M. J. Page, C. Brindle, A. Talavera +11
The XMM-Newton Serendipitous Ultraviolet Source Survey (XMM-SUSS) is a catalogue of ultraviolet (UV) sources detected serendipitously by the Optical Monitor (XMM-OM) on-board the X…