2012ApJ...760...67R

Query : 2012ApJ...760...67R

2012ApJ...760...67R - Astrophys. J., 760, 67 (2012/November-3)

The YSZ-YX scaling relation as determined from Planck and Chandra.

ROZO E., VIKHLININ A. and MORE S.

Abstract (from CDS):

Sunyaev-Zeldovich (SZ) clusters surveys, such as Planck, the South Pole Telescope, and the Atacama Cosmology Telescope, will soon be publishing several hundred SZ-selected systems. The key ingredient required to transport the mass calibration from current X-ray-selected cluster samples to these SZ systems is the YSZ-YX scaling relation. We constrain the amplitude, slope, and scatter of the YSZ-YX scaling relation using SZ data from Planck and X-ray data from Chandra. We find a best-fit amplitude of ln (D 2AYSZ/CYX) = -0.202±0.024 at the pivot point CYX= 8 x 10–5 Mpc2. This corresponds to a YSZ/YX ratio of 0.82±0.024, in good agreement with X-ray expectations after including the effects of gas clumping. The slope of the relation is α = 0.916±0.032, consistent with unity at ~2.3σ. We are unable to detect intrinsic scatter, and find no evidence that the scaling relation depends on cluster dynamical state.

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Journal keyword(s): galaxies: clusters: general

Simbad objects: 28

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Number of rows : 28
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 ACO 85 ClG 00 41 36.21 -09 19 30.4           ~ 909 0
2 ACO 119 ClG 00 56 08.57 -01 12 00.8           ~ 555 2
3 ACO 401 ClG 02 58 56.9 +13 34 56           ~ 566 0
4 ACO 3112 ClG 03 17 52.4 -44 14 35           ~ 311 1
5 ACO 3158 ClG 03 42 39.6 -53 37 50           ~ 304 0
6 ACO 478 ClG 04 13 20.7 +10 28 35           ~ 502 0
7 ACO 3266 ClG 04 31 11.9 -61 24 23           ~ 410 0
8 ACO 3376 ClG 06 01 25.000 -39 59 51.00           ~ 305 0
9 ACO 1413 ClG 11 55 12.87 +23 23 46.9           ~ 430 0
10 ZwCl 1215+0400 ClG 12 17 43.62 +03 38 51.5           ~ 153 0
11 BAX 193.6700-29.2254 ClG 12 54 40.6 -29 13 44           ~ 61 0
12 ACO 1644 ClG 12 57 11.6 -17 24 34           ~ 366 1
13 ACO 1650 ClG 12 58 42.0 -01 45 45           ~ 304 0
14 ACO 1651 ClG 12 59 22.43 -04 11 47.1           ~ 290 0
15 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1125 0
16 ACO 3558 ClG 13 27 54.8 -31 29 32           ~ 442 2
17 ACO 1795 ClG 13 48 50.48 +26 35 07.4           ~ 1267 0
18 ACO 1914 ClG 14 26 03.32 +37 49 58.7           ~ 314 0
19 ACO 2034 ClG 15 10 12.96 +33 29 53.2           ~ 215 1
20 ACO 2029 ClG 15 10 56.2 +05 44 42           ~ 943 0
21 ACO 2065 ClG 15 22 29.3 +27 42 22           ~ 374 0
22 ACO 2163 ClG 16 15 46.1 -06 08 50           ~ 562 0
23 ACO 2204 ClG 16 32 45.7 +05 34 43           ~ 436 0
24 ACO 2256 ClG 17 03 09.4 +78 39 36           ~ 885 1
25 ACO 2255 ClG 17 12 50.04 +64 03 10.6           ~ 568 0
26 ACO 2259 ClG 17 20 09.2 +27 40 09           ~ 117 0
27 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 688 2
28 ACO 3921 ClG 22 49 59.0 -64 25 48           ~ 150 1

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