2018ApJ...853....3H

Query : 2018ApJ...853....3H

2018ApJ...853....3H - Astrophys. J., 853, 3-3 (2018/January-3)

A comparison of maps and power spectra determined from South Pole Telescope and Planck data.

HOU Z., AYLOR K., BENSON B.A., BLEEM L.E., CARLSTROM J.E., CHANG C.L., CHO H.-M., CHOWN R., CRAWFORD T.M., CRITES A.T., DE HAAN T., DOBBS M.A., EVERETT W.B., FOLLIN B., GEORGE E.M., HALVERSON N.W., HARRINGTON N.L., HOLDER G.P., HOLZAPFEL W.L., HRUBES J.D., KEISLER R., KNOX L., LEE A.T., LEITCH E.M., LUONG-VAN D., MARRONE D.P., McMAHON J.J., MEYER S.S., MILLEA M., MOCANU L.M., MOHR J.J., NATOLI T., OMORI Y., PADIN S., PRYKE C., REICHARDT C.L., RUHL J.E., SAYRE J.T., SCHAFFER K.K., SHIROKOFF E., STANISZEWSKI Z., STARK A.A., STORY K.T., VANDERLINDE K., VIEIRA J.D. and WILLIAMSON R.

Abstract (from CDS):

We study the consistency of 150 GHz data from the South Pole Telescope (SPT) and 143 GHz data from the Planck satellite over the patch of sky covered by the SPT-SZ survey. We first visually compare the maps and find that the residuals appear consistent with noise after accounting for differences in angular resolution and filtering. We then calculate (1) the cross-spectrum between two independent halves of SPT data, (2) the cross-spectrum between two independent halves of Planck data, and (3) the cross-spectrum between SPT and Planck data. We find that the three cross-spectra are well fit (PTE = 0.30) by the null hypothesis in which both experiments have measured the same sky map up to a single free calibration parameter-i.e., we find no evidence for systematic errors in either data set. As a by-product, we improve the precision of the SPT calibration by nearly an order of magnitude, from 2.6% to 0.3% in power. Finally, we compare all three cross-spectra to the full-sky Planck power spectrum and find marginal evidence for differences between the power spectra from the SPT-SZ footprint and the full sky. We model these differences as a power law in spherical harmonic multipole number. The best-fit value of this tilt is consistent among the three cross-spectra in the SPT-SZ footprint, implying that the source of this tilt is a sample variance fluctuation in the SPT-SZ region relative to the full sky. The consistency of cosmological parameters derived from these data sets is discussed in a companion paper.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): cosmic background radiation - methods: data analysis - methods: data analysis

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 : 2018ApJ...853....3H

Basic data :
RCW 38 -- Star Forming Region
Other object types: otypes_help 		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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: 1035 		Display criteria :

Identifiers (13) :
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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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