Euclid preparation - LXIX. The impact of relativistic redshift-space distortions on two-point clustering statistics from the Euclid wide spectroscopic survey
Measurements of galaxy clustering are affected by redshift-space distortions (RSDs). Peculiar velocities, gravitational lensing, and other light-cone projection effects modify the observed redshifts, fluxes, and sky positions of distant light sources. We determined which of these effects leave a det...
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
May 2025
|
| In: |
Astronomy and astrophysics
Year: 2025, Jahrgang: 697, Pages: 1-22 |
| ISSN: | 1432-0746 |
| DOI: | 10.1051/0004-6361/202452480 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1051/0004-6361/202452480 Verlag, kostenfrei, Volltext: https://www.aanda.org/articles/aa/abs/2025/05/aa52480-24/aa52480-24.html 
|
| Verfasserangaben: | Euclid Collaboration* |
MARC
| LEADER | 00000naa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1937101851 | ||
| 003 | DE-627 | ||
| 005 | 20250926122531.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 250926s2025 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1051/0004-6361/202452480 |2 doi | |
| 035 | |a (DE-627)1937101851 | ||
| 035 | |a (DE-599)KXP1937101851 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 245 | 0 | 0 | |a Euclid preparation - LXIX. The impact of relativistic redshift-space distortions on two-point clustering statistics from the Euclid wide spectroscopic survey |c Euclid Collaboration* |
| 264 | 1 | |c May 2025 | |
| 300 | |b Illustrationen | ||
| 300 | |a 22 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Online veröffentlicht: 12. Mai 2025 | ||
| 500 | |a *Euclid Collaboration: M.Y. Elkhashab, K. Jahnke, Z. Sakr, G. Seidel [und 250 weitere Personen] | ||
| 500 | |a Gesehen am 26.09.2025 | ||
| 520 | |a Measurements of galaxy clustering are affected by redshift-space distortions (RSDs). Peculiar velocities, gravitational lensing, and other light-cone projection effects modify the observed redshifts, fluxes, and sky positions of distant light sources. We determined which of these effects leave a detectable imprint on several two-point clustering statistics to be extracted from the Euclid wide spectroscopic survey (EWSS) on large scales. We generated 140 mock galaxy catalogues with the survey geometry and selection function of the EWSS and made use of the LIGER (LIght cones with GEneral Relativity) method to account for a variable number of relativistic RSDs to linear order in the cosmological perturbations. We estimated different two-point clustering statistics from the mocks and used the likelihood-ratio test to calculate the statistical significance with which the EWSS could reject the null hypothesis that certain relativistic projection effects can be neglected in the theoretical models. We find that the combined effects of lensing magnification and convergence imprint characteristic signatures on several clustering observables. Their signal-to-noise ratio (S/N) ranges between 2.5 and 6 (depending on the adopted summary statistic) for the highest-redshift galaxies in the EWSS. The corresponding feature due to the peculiar velocity of the Sun is measured with a S/N of order one or two. The multipoles of the power spectrum from the catalogues that include all relativistic effects reject the null hypothesis that RSDs are only generated by the variation in the peculiar velocity along the line of sight with a significance of 2.9 standard deviations. As a by-product of our study, we demonstrate that the mixing-matrix formalism to model finite-volume effects in the multipole moments of the power spectrum can be robustly applied to surveys made of several disconnected patches. Our results indicate that relativistic RSDs, in particular the contribution from weak gravitational lensing, cannot be disregarded when modelling two-point clustering statistics extracted from the EWSS. | ||
| 700 | 1 | |a Elkhashab, Mohamed Yousry |e VerfasserIn |0 (DE-588)1377530256 |0 (DE-627)1937102181 |4 aut | |
| 700 | 1 | |a Jahnke, Knud |e VerfasserIn |0 (DE-588)1200875141 |0 (DE-627)1683870255 |4 aut | |
| 700 | 1 | |a Sakr, Ziad |e VerfasserIn |0 (DE-588)1296375315 |0 (DE-627)1852803258 |4 aut | |
| 700 | 1 | |a Seidel, Gregor |d 1977- |e VerfasserIn |0 (DE-588)139967559 |0 (DE-627)703521993 |0 (DE-576)314004769 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Astronomy and astrophysics |d Les Ulis : EDP Sciences, 1969 |g 697(2025) vom: Mai, Artikel-ID A85, Seite 1-22 |h Online-Ressource |w (DE-627)253390222 |w (DE-600)1458466-9 |w (DE-576)072283351 |x 1432-0746 |7 nnas |a Euclid preparation - LXIX. The impact of relativistic redshift-space distortions on two-point clustering statistics from the Euclid wide spectroscopic survey |
| 773 | 1 | 8 | |g volume:697 |g year:2025 |g month:05 |g elocationid:A85 |g pages:1-22 |g extent:22 |a Euclid preparation - LXIX. The impact of relativistic redshift-space distortions on two-point clustering statistics from the Euclid wide spectroscopic survey |
| 856 | 4 | 0 | |u https://doi.org/10.1051/0004-6361/202452480 |x Verlag |x Resolving-System |z kostenfrei |3 Volltext |
| 856 | 4 | 0 | |u https://www.aanda.org/articles/aa/abs/2025/05/aa52480-24/aa52480-24.html |x Verlag |z kostenfrei |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20250926 | ||
| 993 | |a Article | ||
| 994 | |a 2025 | ||
| 998 | |g 139967559 |a Seidel, Gregor |m 139967559:Seidel, Gregor |d 130000 |e 130000PS139967559 |k 0/130000/ |p 121 | ||
| 998 | |g 1296375315 |a Sakr, Ziad |m 1296375315:Sakr, Ziad |p 112 | ||
| 998 | |g 1200875141 |a Jahnke, Knud |m 1200875141:Jahnke, Knud |d 130000 |e 130000PJ1200875141 |k 0/130000/ |p 61 | ||
| 999 | |a KXP-PPN1937101851 |e 4776454904 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"note":["Online veröffentlicht: 12. Mai 2025","*Euclid Collaboration: M.Y. Elkhashab, K. Jahnke, Z. Sakr, G. Seidel [und 250 weitere Personen]","Gesehen am 26.09.2025"],"recId":"1937101851","person":[{"given":"Mohamed Yousry","display":"Elkhashab, Mohamed Yousry","family":"Elkhashab","role":"aut"},{"family":"Jahnke","role":"aut","given":"Knud","display":"Jahnke, Knud"},{"display":"Sakr, Ziad","given":"Ziad","role":"aut","family":"Sakr"},{"family":"Seidel","role":"aut","given":"Gregor","display":"Seidel, Gregor"}],"language":["eng"],"name":{"displayForm":["Euclid Collaboration*"]},"origin":[{"dateIssuedKey":"2025","dateIssuedDisp":"May 2025"}],"relHost":[{"corporate":[{"role":"isb","display":"European Southern Observatory"}],"disp":"Euclid preparation - LXIX. The impact of relativistic redshift-space distortions on two-point clustering statistics from the Euclid wide spectroscopic surveyAstronomy and astrophysics","type":{"media":"Online-Ressource","bibl":"periodical"},"titleAlt":[{"title":"Astronomy & astrophysics"},{"title":"a European journal"}],"language":["eng"],"part":{"volume":"697","year":"2025","extent":"22","pages":"1-22","text":"697(2025) vom: Mai, Artikel-ID A85, Seite 1-22"},"pubHistory":["1.1969 -"],"note":["Gesehen am 21.06.2024","Erscheint 36mal jährlich in 12 Bänden zu je 3 Ausgaben","Fortsetzung der Druck-Ausgabe"],"title":[{"title_sort":"Astronomy and astrophysics","title":"Astronomy and astrophysics","subtitle":"an international weekly journal"}],"id":{"issn":["1432-0746"],"eki":["253390222"],"zdb":["1458466-9"]},"physDesc":[{"extent":"Online-Ressource"}],"origin":[{"publisher":"EDP Sciences ; Springer","dateIssuedDisp":"1969-","dateIssuedKey":"1969","publisherPlace":"Les Ulis ; Berlin ; Heidelberg"}],"name":{"displayForm":["European Southern Observatory (ESO)"]},"recId":"253390222"}],"id":{"eki":["1937101851"],"doi":["10.1051/0004-6361/202452480"]},"physDesc":[{"noteIll":"Illustrationen","extent":"22 S."}],"title":[{"title_sort":"Euclid preparation - LXIX. The impact of relativistic redshift-space distortions on two-point clustering statistics from the Euclid wide spectroscopic survey","title":"Euclid preparation - LXIX. The impact of relativistic redshift-space distortions on two-point clustering statistics from the Euclid wide spectroscopic survey"}],"type":{"media":"Online-Ressource","bibl":"article-journal"}} | ||
| SRT | |a ELKHASHABMEUCLIDPREP2025 | ||