395 citations · 1.2k across the 8 of their papers we have counts for
8 papers
Using the motion of S2 to constrain scalar clouds around SgrA*
GRAVITY Collaboration, A. Foschi, R. Abuter +67
The motion of S2, one of the stars closest to the Galactic Centre, has been measured accurately and used to study the compact object at the centre of the Milky Way. It is commonly…
Determining the primordial helium abundance and UV background using fluorescent emission in star-free dark matter haloes
Calvin Sykes, Michele Fumagalli, Ryan Cooke +1
Observational measures of the primordial helium mass fraction, , are of interest for cosmology and fundamental particle physics. Current measures obtained from H II regi…
Gas filaments of the cosmic web located around active galaxies in a proto-cluster
H. Umehata, M. Fumagalli, I. Smail +15
Cosmological simulations predict the Universe contains a network of intergalactic gas filaments, within which galaxies form and evolve. However, the faintness of any emission from…
Fluorescent rings in star-free dark matter haloes
Calvin Sykes, Michele Fumagalli, Ryan Cooke +2
Photoheating of the gas in low-mass dark matter (DM) haloes prevents baryons from cooling, leaving the haloes free of stars. Gas in these 'dark' haloes remains exposed to the ultra…
The Cosmic Lens All-Sky Survey:II. Gravitational lens candidate selection and follow-up
I. W. A. Browne, P. N. Wilkinson, N. J. F. Jackson +19
We report the final results of the search for gravitationally lensed flat-spectrum radio sources found in the combination of CLASS (Cosmic Lens All Sky Survey) and JVAS (Jodrell-Ba…
The Cosmic Lens All-Sky Survey: I. Source selection and observations
S. T. Myers, N. J. Jackson, I. W. A. Browne +15
The Cosmic Lens All-Sky Survey (CLASS) is an international collaborative program which has obtained high-resolution radio images of over 10000 flat-spectrum radio sources in order…
Constraints on Cosmological Parameters from the Analysis of the Cosmic Lens All Sky Survey Radio-Selected Gravitational Lens Statistics
K. -H. Chae, A. D. Biggs, R. D. Blandford +20
We derive constraints on cosmological parameters and the properties of the lensing galaxies from gravitational lens statistics based on the final Cosmic Lens All Sky Survey (CLASS)…
The complex gravitational lens system B1933+503
C. M. Sykes, I. W. A. Browne, N. J. Jackson +15
We report the discovery of the most complex arcsec-scale radio gravitational lens system yet known. B1933+503 was found during the course of the CLASS survey and MERLIN and VLA rad…