TY - JOUR
T1 - High-significance sunyaev-zel'dovich measurement
T2 - Abell 1914 seen with the Arcminute Microkelvin Imager
AU - AMI Collaberation
AU - Barker, Robert
AU - Biddulph, Phillip
AU - Bly, Dennis
AU - Boysen, Roger
AU - Brown, Anthony
AU - Clementson, Christopher
AU - Crofts, Michael
AU - Culverhouse, Thomas
AU - Czeres, Jaroslaw
AU - Dace, Roger
AU - D'Alessandro, Robert
AU - Doherty, Peter
AU - Duffett-Smith, Peter
AU - Duggan, Kenneth
AU - Ely, John
AU - Felvus, Mike
AU - Flynn, William
AU - Geisbüsch, Jörn
AU - Grainge, Keith
AU - Grainger, William
AU - Hammet, David
AU - Hills, Richard
AU - Hobson, Michael
AU - Holler, Christian
AU - Jilley, Roy
AU - Jones, Michael E.
AU - Kaneko, Takeshi
AU - Kneissl, Rüdiger
AU - Lancaster, Katy
AU - Lasenby, Anthony
AU - Marshall, Phil
AU - Newton, Francis
AU - Norris, Oliver
AU - Northrop, Ian
AU - Pooley, Guy
AU - Quy, Vic
AU - Saunders, Richard D.E.
AU - Scaife, Anna
AU - Schofield, Jack
AU - Scott, Paul
AU - Shaw, Clive
AU - Taylor, Angela C.
AU - Titterington, David
AU - Velić, Marko
AU - Waldram, Elizabeth
AU - West, Simon
AU - Wood, Brian
AU - Yassin, Ghassan
AU - Zwart, Jonathan
PY - 2006/6/1
Y1 - 2006/6/1
N2 - We report the first detection of a Sunyaev-Zel'dovich (S-Z) decrement using the Arcminute Microkelvin Imager (AMI). We have made commissioning observations towards the cluster of galaxies A1914 and detected the S-Z effect with a significance of 17σ in a uυ-tapered map at a mean frequency of 15.75 GHz. The integrated S-Z flux density of -8.6 ± 0.5 mJy is consistent with a simple X-ray derived model for the intracluster gas. We find that the spectrum of the decrement, measured in the six channels between 13.5-18 GHz, fits well to that expected for the S-Z effect. The sensitivity of the telescope is consistent with the figures used in our simulations of cluster surveys with AMI.
AB - We report the first detection of a Sunyaev-Zel'dovich (S-Z) decrement using the Arcminute Microkelvin Imager (AMI). We have made commissioning observations towards the cluster of galaxies A1914 and detected the S-Z effect with a significance of 17σ in a uυ-tapered map at a mean frequency of 15.75 GHz. The integrated S-Z flux density of -8.6 ± 0.5 mJy is consistent with a simple X-ray derived model for the intracluster gas. We find that the spectrum of the decrement, measured in the six channels between 13.5-18 GHz, fits well to that expected for the S-Z effect. The sensitivity of the telescope is consistent with the figures used in our simulations of cluster surveys with AMI.
KW - Cosmic microwave background
KW - Galaxies: clusters: individual: A1914
UR - http://www.scopus.com/inward/record.url?scp=33846899778&partnerID=8YFLogxK
U2 - 10.1111/j.1745-3933.2006.00151.x
DO - 10.1111/j.1745-3933.2006.00151.x
M3 - Letter
AN - SCOPUS:33846899778
SN - 1745-3933
VL - 369
SP - L1-L4
JO - Monthly Notices of the Royal Astronomical Society: Letters
JF - Monthly Notices of the Royal Astronomical Society: Letters
IS - 1
ER -