TY - JOUR
T1 - Measuring the Hubble constant from Ryle Telescope and X-ray observations, with application to Abell 1413
AU - Grainge, Keith
AU - Jones, Michael E.
AU - Pooley, Guy
AU - Saunders, Richard
AU - Edge, Alastair
AU - Grainger, William F.
AU - Kneissl, Rüdiger
PY - 2002/6/21
Y1 - 2002/6/21
N2 - We describe our methods for measuring the Hubble constant from Ryle Telescope (RT) interferometric observations of the Sunyaev-Zel'dovich (SZ) effect from a galaxy cluster and observation of the cluster X-ray emission. We analyse the error budget in this method: as well as radio and X-ray random errors, we consider the effects of clumping and temperature differences in the cluster gas, of the kinetic SZ effect, of bremsstrahlung emission at radio wavelengths, of the gravitational lensing of background radio sources and of primary calibration error. Using RT, ASCA and ROSATobservations of the Abell 1413, we find that random errors dominate over systematic ones, and estimate H0 = 57+23-16 km s-1 Mpc-1 for a an ΩM = 1.0, ΩΛ = 0.0 cosmology.
AB - We describe our methods for measuring the Hubble constant from Ryle Telescope (RT) interferometric observations of the Sunyaev-Zel'dovich (SZ) effect from a galaxy cluster and observation of the cluster X-ray emission. We analyse the error budget in this method: as well as radio and X-ray random errors, we consider the effects of clumping and temperature differences in the cluster gas, of the kinetic SZ effect, of bremsstrahlung emission at radio wavelengths, of the gravitational lensing of background radio sources and of primary calibration error. Using RT, ASCA and ROSATobservations of the Abell 1413, we find that random errors dominate over systematic ones, and estimate H0 = 57+23-16 km s-1 Mpc-1 for a an ΩM = 1.0, ΩΛ = 0.0 cosmology.
KW - Cosmic microwave background
KW - Cosmology: observations
KW - Distance scale
KW - Galaxies: clusters: individual: A1413
KW - X-rays: general
U2 - 10.1046/j.1365-8711.2002.05429.x
DO - 10.1046/j.1365-8711.2002.05429.x
M3 - Article
SN - 1365-2966
VL - 333
SP - 318
EP - 326
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 2
ER -