2010A&A...518L..16Z -
Astronomy and Astrophysics, volume 518, L16-16 (2010/7-2)
First detection of the Sunyaev Zel'dovich effect increment at λ< 650 µm.
ZEMCOV M., REX M., RAWLE T.D., BOCK J.J., EGAMI E., ALTIERI B., BLAIN A.W., BOONE F., BRIDGE C.R., CLEMENT B., COMBES F., DOWELL C.D., DESSAUGES-ZAVADSKY M., FADDA D., ILBERT O., IVISON R.J., JAUZAC M., KNEIB J.-P., LUTZ D., PELLO R., PEREIRA M.J., PEREZ-GONZALEZ P.G., RICHARD J., RIEKE G.H., RODIGHIERO G., SCHAERER D., SMITH G.P., VALTCHANOV I., WALTH G.L., VAN DER WERF P. and WERNER M.W.
Abstract (from CDS):
The Sunyaev-Zel'dovich (SZ) effect is a spectral distortion of the cosmic microwave background as observed through the hot plasma in galaxy clusters. This distortion is a decrement in the CMB intensity for λ>1.3mm, an increment at shorter wavelengths, and small again by λ∼250µm. As part of the Herschel Lensing Survey (HLS) we have mapped 1E0657-56 (the Bullet cluster) with SPIRE with bands centered at 250, 350 and 500µm and have detected the SZ effect at the two longest wavelengths. The measured SZ effect increment central intensities are ΔI0=0.097±0.019MJy/sr at 350µm and ΔI0=0.268±0.031MJy/sr at 500µm, consistent with the SZ effect spectrum derived from previous measurements at 2mm. No other diffuse emission is detected. The presence of the finite temperature SZ effect correction is preferred by the SPIRE data at a significance of 2.1σ, opening the possibility that the relativistic SZ effect correction can be constrained by SPIRE in a sample of clusters. The results presented here have important ramifications for both sub-mm measurements of galaxy clusters and blank field surveys with SPIRE.
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Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
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06 57 31.5 -55 52 28
[
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Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
quality : flag of quality
E ≥ 10"
D : 1-10" (and some old data)
C : 0.1-1"
B : 0.01-0.1" + 2MASS, Tyc
A : VLBI, Hipparcos
bibcode : bibcode of the coordinates reference
Gal
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266.0212 -21.2500
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References (911 between 1850 and 2023) (Total 911)
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