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 - 2026 		#notes
1 ACO 85 ClG 00 41 36.21 -09 19 30.4           ~ 974 0
2 ACO 119 ClG 00 56 08.57 -01 12 00.8           ~ 577 2
3 ACO 401 ClG 02 58 50.3 +13 34 07           ~ 592 0
4 ACO 3112 ClG 03 17 52.9 -44 15 06           ~ 329 1
5 ACO 3158 ClG 03 43 07.5 -53 38 09           ~ 327 0
6 ACO 478 ClG 04 13 24.8 +10 27 52           ~ 522 0
7 ACO 3266 ClG 04 31 26.4 -61 25 17           ~ 447 0
8 ACO 3376 ClG 06 01 25.000 -39 59 51.00           ~ 334 0
9 ACO 1413 ClG 11 55 12.87 +23 23 46.9           ~ 456 0
10 ZwCl 1215+0400 ClG 12 17 43.62 +03 38 51.5           ~ 169 0
11 BAX 193.6700-29.2254 ClG 12 54 40.6 -29 13 44           ~ 76 0
12 ACO 1644 ClG 12 57 11.6 -17 24 34           ~ 391 1
13 ACO 1650 ClG 12 58 42.0 -01 45 45           ~ 325 0
14 ACO 1651 ClG 12 59 27.3 -04 10 49           ~ 307 0
15 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
16 ACO 3558 ClG 13 28 03.2 -31 31 35           ~ 476 2
17 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
18 ACO 1914 ClG 14 25 57.4 +37 49 54           ~ 338 0
19 ACO 2034 ClG 15 10 03.9 +33 30 57           ~ 248 1
20 ACO 2029 ClG 15 10 54.2 +05 44 23           ~ 1020 0
21 ACO 2065 ClG 15 22 22.7 +27 44 20           ~ 398 0
22 ACO 2163 ClG 16 15 46.1 -06 08 50           ~ 586 0
23 ACO 2204 ClG 16 32 47.7 +05 34 18           ~ 457 0
24 ACO 2256 ClG 17 03 37.5 +78 37 23           ~ 928 1
25 ACO 2255 ClG 17 12 56.0 +64 04 06           ~ 605 0
26 ACO 2259 ClG 17 20 09.2 +27 40 09           ~ 131 0
27 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 732 2
28 ACO 3921 ClG 22 49 59.0 -64 25 48           ~ 165 1

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