Measurement of the Sunyaev-Zel'dovich Increment in Massive Galaxy Clusters

Abstract

We have detected the Sunyaev-Zel'dovich (SZ) increment at 850 microns in two galaxy clusters (Cl 0016+16 and MS 1054.4-0321) using SCUBA (Sub-millimetre Common User Bolometer Array) on the James Clerk Maxwell Telescope. Fits to the isothermal βmodel yield a central Compton y parameter of (2.2 \pm 0.7) x 10^{-4} and a central 850 micron flux of ΔI_{0} = 2.2 \pm 0.7 mJy/beam in Cl 0016. This can be combined with decrement measurements to infer y = (2.38 \pm_{0.34}^{0.36}) x 10^{-4} and v_{pec} = 400 \pm_{1400}^{1900} km/s. In MS 1054 we find a peak 850 micron flux of ΔI_{0} = 2.0 \pm 1.0 mJy/beam and y = (2.0 \pm 1.0) x 10^{-4}. To be successful such measurements require large chop throws and non-standard data analysis techniques. In particular, the 450 micron data are used to remove atmospheric variations in the 850 micron data. An explicit annular model is fit to the SCUBA difference data in order to extract the radial profile, and separately fit to the model differences to minimize the effect of correlations induced by our scanning strategy. We have demonstrated that with sufficient care, SCUBA can be used to measure the SZ increment in massive, compact galaxy clusters.

arXiv comment10 pages, 5 figures, final MNRAS version

References in corpus (24)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• Cosmology with the Sunyaev-Zel'dovich Effect
• The Sunyaev-Zel'dovich Effect
• SCUBA: A common-user submillimetre camera operating on the James Clerk Maxwell Telescope
• Cosmic Microwave Background Anisotropies
• The nature of faint submm-selected galaxies
• Relativistic Corrections to the Sunyaev-Zel'dovich Effect for Clusters of Galaxies
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing Methods and Systematic Errors Limits
• Peculiar velocities of galaxies and clusters
• A brute force analysis of the COBE DMR data
• A Measurement of the Hubble Constant from the X-Ray Properties and the Sunyaev-Zel'dovich Effect of CL0016+16
• Submillimetre sources in rich cluster fields - source counts, redshift estimates, and cooling flow limits
• Limits on the Peculiar Velocities of Two Distant Clusters Using the Kinematic Sunyaev-Zel'dovich Effect
• Sunyaev-Zel'dovich Effect Derived Distances to the High Redshift Clusters MS 0451.6-0305 and CL 0016+16
• Peculiar Velocity Limits from Measurements of the Spectrum of the Sunyaev-Zel'dovich Effect in Six Clusters of Galaxies
• Submillimeter detection of the Sunyaev -- Zel'dovich effect toward the most luminous X-ray cluster at z=0.45
• Sunyaev-Zel'dovich Effect Imaging of Massive Clusters of Galaxies at Redshift z > 0.8
• Producing Mega-pixel CMB Maps from Differential Radiometer Data
• Chandra X-Ray Observatory Observation of the High-Redshift Cluster MS 1054-0321
• First measurement of the submillimetre Sunyaev-Zel'dovich effect
• A SCUBA Scanmap of the HDF: Measuring the bright end of the sub-mm source counts
• Gravitational lensing and the Sunyaev-Zel'dovich effect in the millimetre/submillimetre waveband
• Mapping of the SZ effect in the cluster Cl 0016+16 with the Ryle Telescope
• Using SCUBA to place upper limits on arcsecond scale CMB anisotropies at 850 microns

Cited by in corpus (10)

• Evidence of Galaxy Cluster Motions with the Kinematic Sunyaev-Zel'dovich Effect
• The Build-up of the Colour-Magnitude Relation as a Function of Environment
• Exploring Cluster Physics with High-Resolution Sunyaev-Zel'dovich Effect Images and X-Ray Data: The Case of the Most X-Ray-Luminous Galaxy Cluster RX J1347-1145
• The nature of a gravitationally lensed sub-millimetre arc in MS0451.6-0305: two interacting galaxies at z~2.9?
• First detection of the Sunyaev Zel'dovich effect increment at lambda < 650 um
• High Spectral Resolution Measurement of the Sunyaev-Zel'dovich Effect Null with Z-Spec
• A Huge Filamentary Structure at z=0.55 and Star Formation Histories of Galaxies at z<1
• A study of the Sunyaev-Zel'dovich increment using archival SCUBA data
• A GALEX/Spitzer survey of the Cl0016+16 supercluster at z=0.55: acceleration of the onset of star-formation in satellite groups
• An Analysis of Optical Pick-up in SCUBA Data