2025A&A...702A.169S

Query : 2025A&A...702A.169S

2025A&A...702A.169S - Astronomy and Astrophysics, volume 702A169 (2025/10-1)

KiDS-Legacy: Consistency of cosmic shear measurements and joint cosmological constraints with external probes.

STOLZNER B., WRIGHT A.H., ASGARI M., HEYMANS C., HILDEBRANDT H., HOEKSTRA H., JOACHIMI B., KUIJKEN K., LI S.-S., MAHONY C., REISCHKE R., YOON M., BILICKI M., BURGER P., CHISARI N.E., DVORNIK A., GEORGIOU C., GIBLIN B., HARNOIS-DERAPS J., JALAN P., WILLIAM A.J., JOUDAKI S., LESCI G.F., LINKE L., LOUREIRO A., MATURI M., MOSCARDINI L., NAPOLITANO N.R., PORTH L., RADOVICH M., TROSTER T., VALENTIJN E., VON WIETERSHEIM-KRAMSTA M., WITTJE A., YAN Z. and ZHANG Y.-H.

Abstract (from CDS):

We present a cosmic shear consistency analysis of the final data release from the Kilo-Degree Survey (KiDS-Legacy). By adopting three tiers of consistency metrics, we compared cosmological constraints between subsets of the KiDS-Legacy dataset split by redshift, angular scale, galaxy colour, and spatial region. We also reviewed a range of two-point cosmic shear statistics. As all the data passed our set of consistency metric tests, we demonstrate that KiDS-Legacy is the most internally consistent KiDS catalogue to date. In a joint cosmological analysis of KiDS-Legacy and DES Y3 cosmic shear, combined with data from the Pantheon+ Type Ia supernovae compilation and baryon acoustic oscillations from DESI Y1, we report constraints that are consistent with Planck measurements of the cosmic microwave background, with $ S_8\equiv \sigma_8\sqrt{\Omega_{\mathrm{m}}/0.3} = 0.814^{+0.011}_{-0.012} $ and $ \sigma_8 = 0.802^{+0.022}_{-0.018} $.

Abstract Copyright: © The Authors 2025

Journal keyword(s): gravitational lensing: weak - methods: statistical - cosmological parameters - cosmology: observations - 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 NAME SGP reg 00 51 26.275 -27 07 41.70           ~ 606 0

Query : 2025A&A...702A.169S

Basic data :
NAME SGP -- Region defined in the Sky
Other object types: otypes_help 		reg ([SFD98])
ICRS coord. (ep=J2000) : 		00 51 26.275 -27 07 41.70 [ ] D ~
FK4 coord. (ep=B1950 eq=1950) : 		00 49 00.001 -27 24 00.17 [ ]
Gal coord. (ep=J2000) : 		148.040683 -89.999997 [ ]
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Identifiers (3) :
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NAME SGP NAME South Galactic Pole [SFD98] J0051-2708

References (606 between 1850 and 2026) (Total 606)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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