Context. Globular clusters are useful for testing the validity of Newtonian dynamics in the low acceleration regime typical of galaxies, without the...
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PublicationTesting Newtonian gravity with distant globular clusters: NGC 1851 and NGC 1904
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PublicationTesting the Black Hole No-hair Theorem with OJ287
We examine the ability to test the black hole no-hair theorem at the 10% level in this decade using the binary black hole in OJ287. In the test we constrain the...
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PublicationThe Anomalous Acceleration of the Pioneer Spacecrafts
Radiometric data from the Pioneer 10 and 11 spacecrafts have revealed an unexplained constant acceleration of a_A = (8.74+/-1.33)×10^{-10}m s^{-2} towards the...
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PublicationThe clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measuring growth rate and geometry with anisotropic clustering
We use the observed anisotropic clustering of galaxies in the Baryon Oscillation Spectroscopic Survey Data Release 11 CMASS sample to measure the linear growth...
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PublicationThe Complete Zeldovich Approximation
We have developed a generalization of the Zeldovich approximation that is exact in a wide variety of situations, including planar, spherical, and cylindrical...
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PublicationThe correlation structure of dark matter halo properties
We investigate the correlation between nine different dark matter halo properties using a rank correlation analysis and a Principal Component Analysis for a...
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PublicationThe Fast Spiral-in of the Companion Star to the Black Hole XTE J1118+480
We report the detection of an orbital period decay of dot{P}=-1.83+/- 0.66 ms yr-1 in the black hole X-ray binary XTE J1118+480. This corresponds to a period...
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PublicationThe Mark-I helioseismic experiment - I. Measurements of the solar gravitational redshift (1976-2013)
The resonant scattering solar spectrophotometer `Mark-I', designed and build at the University of Birmingham (UK) and located at the Observatorio del Teide...
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TalkThe multiple routes of galaxy transformation across the cosmic epochs
In the local universe most of the stellar mass is in passive galaxies, where star formation isabsent or at very low levels. Understanding what are the...