2015ApJ...799..177G

Query : 2015ApJ...799..177G

2015ApJ...799..177G - Astrophys. J., 799, 177 (2015/February-1)

A measurement of secondary cosmic microwave background anisotropies from the 2500 square-degree SPT-SZ survey.

GEORGE E.M., REICHARDT C.L., AIRD K.A., BENSON B.A., BLEEM L.E., CARLSTROM J.E., CHANG C.L., CHO H.-M., CRAWFORD T.M., CRITES A.T., DE HAAN T., DOBBS M.A., DUDLEY J., HALVERSON N.W., HARRINGTON N.L., HOLDER G.P., HOLZAPFEL W.L., HOU Z., HRUBES J.D., KEISLER R., KNOX L., LEE A.T., LEITCH E.M., LUEKER M., LUONG-VAN D., McMAHON J.J., MEHL J., MEYER S.S., MILLEA M., MOCANU L.M., MOHR J.J., MONTROY T.E., PADIN S., PLAGGE T., PRYKE C., RUHL J.E., SCHAFFER K.K., SHAW L., SHIROKOFF E., SPIELER H.G., STANISZEWSKI Z., STARK A.A., STORY K.T., VAN ENGELEN A., VANDERLINDE K., VIEIRA J.D., WILLIAMSON R. and ZAHN O.

Abstract (from CDS):

We present measurements of secondary cosmic microwave background (CMB) anisotropies and cosmic infrared background (CIB) fluctuations using data from the South Pole Telescope (SPT) covering the complete 2540 deg² SPT-SZ survey area. Data in the three SPT-SZ frequency bands centered at 95, 150, and 220 GHz, are used to produce six angular power spectra (three single-frequency auto-spectra and three cross-spectra) covering the multipole range 2000 < ℓ < 11, 000 (angular scales 5' ≳ θ ≳ 1'). These are the most precise measurements of the angular power spectra at ℓ > 2500 at these frequencies. The main contributors to the power spectra at these angular scales and frequencies are the primary CMB, CIB, thermal and kinematic Sunyaev-Zel'dovich effects (tSZ and kSZ), and radio galaxies. We include a constraint on the tSZ power from a measurement of the tSZ bispectrum from 800 deg² of the SPT-SZ survey. We measure the tSZ power at 143 GHz to be D₃₀₀₀^tSZ = 4.08_–0.67^+0.58 µK² and the kSZ power to be D₃₀₀₀^kSZ = 2.9 ± 1.3µK². The data prefer positive kSZ power at 98.1% CL. We measure a correlation coefficient of ξ = 0.113_–0.054^0.057 between sources of tSZ and CIB power, with ξ < 0 disfavored at a confidence level of 99.0%. The constraint on kSZ power can be interpreted as an upper limit on the duration of reionization. When the post-reionization homogeneous kSZ signal is accounted for, we find an upper limit on the duration Δz < 5.4 at 95% CL.

Abstract Copyright: ∼

Journal keyword(s): cosmic background radiation - cosmology: observations - dark ages, reionization, first stars - diffuse radiation - large-scale structure of universe

Simbad objects: 1

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Number of rows : 1

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	RCW 38	SFR	08 59 05.50	-47 30 39.4						~	327	2

Query : 2015ApJ...799..177G

Basic data :

RCW 38 -- Star Forming Region
Other object types:	`SFR ()`, `Rad (GRS,Kes,...)`, `HII (RCW,[HBB99],...)`, `* (MHR)`
ICRS coord. (ep=J2000) :	`08 59 05.50 -47 30 39.4 [ ] D ~`
FK4 coord. (ep=B1950 eq=1950) :	`08 57 23.57 -47 18 56.1 [ ]`
Gal coord. (ep=J2000) :	`267.94067 -01.05770 [ ]`

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`GAL 268.0-01.1`	`Kes 5`	`[GS70] 268.0-01.0`	`[WMG70] 268.0-01.1`
`GRS G267.94 -01.03`	`MHR 5`	`[HBB99] 268.034-0.984`
`GRS G267.94 -01.06`	`MSH 08-4-07`	`[KC97c] G268.0-01.0`
`GRS G268.00 -01.10`	`RCW 38`	`[SG70] 268.0-1.1`

References (327 between 1850 and 2026) (Total 327)
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Data at NED - NASA/IPAC Extragalactic Database : RCW 38

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