Semantic Scholar Open Access 2026

Euclid preparation. LXXXVIII. 3D reconstruction of the cosmic web with Euclid Deep spectroscopic samples

Euclid Collaboration K. Kraljic C. Laigle M. Balogh P. Jablonka U. Kuchner +495 lainnya

Abstrak

The ongoing Euclid mission is aimed at measuring spectroscopic redshifts for approximately two million galaxies using the , ^ line emission detected in near-infrared slitless spectroscopic data from the Euclid Deep Fields, leveraging both the red and blue grisms. These measurements will reach a flux limit of 5 , , ^ 10^ -17 ̊m erg ̊m cm -2 ̊m s -1 in the redshift range 0.4<z<1.8, paving the way to numerous scientific investigations involving galaxy evolution, extending well beyond the mission's core objectives. The achieved luminosity depth will lead to a sufficiently high sampling, enabling the reconstruction of the large-scale galaxy environment. Here, we assess the quality of the reconstruction of the galaxy cosmic web environment with the expected spectroscopic dataset in Euclid Deep Fields. The analysis was carried out on the Flagship and galaxy mock catalogues. The quality of the reconstruction was first evaluated using simple geometrical and topological statistics measured on the cosmic web network; namely, the length of filaments, the area of walls, the volume of voids, and its connectivity and multiplicity. We then quantified how accurately gradients in galaxy properties can be recovered, with respect to the distance from filaments. As expected, the small-scale redshift-space distortions, such as Fingers of God (FoG) effects, have a strong impact on filament lengths and connectivity; however, they can be mitigated by compressing galaxy groups identified with an anisotropic group finder prior to a skeleton extraction. The cosmic web reconstruction is biased when relying solely on emitters. This limitation can be mitigated by applying stellar mass weighting during the cosmic web reconstruction. However, this approach introduces non-trivial biases that need to be accounted for when comparing to theoretical predictions. Redshift uncertainties pose the greatest challenge in recovering the expected dependence of galaxy properties, although the well-established stellar mass transverse gradients towards filaments can still be observed to a lesser extent.

Topik & Kata Kunci

Penulis (500)

E

Euclid Collaboration K. Kraljic

C

C. Laigle

M

M. Balogh

P

P. Jablonka

U

U. Kuchner

N

N. Malavasi

F

F. Sarron

C

C. Pichon

G

G. D. Lucia

M

M. Bethermin

F

F. Durret

M

M. Fumagalli

C

C. Gouin

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M. Magliocchetti

J

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O

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F

F. Fontanot

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Y

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M

M. Spinelli

N

N. Aghanim

A

A. Amara

S

S. Andreon

N

N. Auricchio

C

C. Baccigalupi

M

M. Baldi

S

S. Bardelli

A

A. Biviano

E

E. Branchini

M

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J

J. Brinchmann

S

S. Camera

G

G. Cañas-Herrera

V

V. Capobianco

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F. Castander

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C. Colodro-Conde

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A

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K. Paterson

L

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G. Rodighiero

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E

E. Sellentin

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K. Tanidis

C

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R. Teyssier

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A

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M. Tucci

C

C. Valieri

A

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D

D. Vergani

G

G. Verza

P

P. Vielzeuf

N

N. A. W. U. D. Strasbourg

C

Cnrs

O

O. Strasbourg

U

Umr 7550

6

67000 Strasbourg

F

France

I

I. Paris

U

Umr 7095

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Sorbonne Universit'e

9

98 bis boulevard Arago

7

7. Paris

D

D. Physics

A

Astronomy

U

U. Waterloo

W

Waterloo

O

Ontario N2L 3G1

C

Canada

W

Waterloo Centre for Astrophysics

I

I. O. Physics

L

Laboratory of Astrophysics

E

E. P. F. Lausanne

O

Observatoire de Sauverny

1

1290 Versoix

S

Switzerland.

S

S. O. Physics

U

U. Nottingham

U

U. Park

N

Nottingham NG7 2RD

U

Uk

M

M. F. P. Physics

1

1. Giessenbachstr.

8

85748 Garching

G

Germany

I

Institut de Recherche en Informatique de Toulouse

U

U. Toulouse

T

Toulouse Inp

U

UT3

3

31400 Toulouse

L

Laboratoire Mcd

C

Centre de Biologie Int'egrative

K

Kyung Hee University

D

Dept. of AstronomySpace Science

Y

Yongin-shi

G

Gyeonggi-do 17104

R

R. Korea.

I

Inaf Trieste

1

11 ViaG.B.Tiepolo

3

34127 Trieste

I

Italy

9

98 bis boulevard Arago

7

75014

P

Paris

D

Dip. di FisicaG. Occhialini

U

U. Bicocca

3

3. piazzadellaScienza

2

20133 Milano

I

I. D. A. E. P. Spaziali

V

V. Cavaliere

1

100

0

00133 Roma

U

U. Lille

C

Centrale Lille

U

U. 9. CRIStAL

5

59000 Lille

U

Universit'e Paris-Saclay

I

I. D. Spatiale

9

91405

O

Orsay

I

I. Bologna

V

V. G. 933

4

40129 Bologna

I

Ifpu

I

Institute for Fundamental Physics of the Universe

2

2. viaBeirut

3

34127 Trieste

L

Laboratory for Galaxy Evolution

C

CH-1290 Versoix

D

D. O. Astronomy

U

U. Geneva

1

16 ch.d'Ecogia

U

Universit'e Cote d'Azur

O

Observatoire Cote d'Azur

L

Laboratoire Lagrange

B

Bd de l'Observatoire

C

CS 34229

4

4. 06304Nicecedex

U

U. Cape

B

Bellville

C

C. Town

7

7535

S

South Africa

S

S. O. Mathematics

P

Physics

U

U. Surrey

G

Guildford

S

Surrey

G

GU2 7XH

I

Inaf Brera

2

28 ViaBrera

2

20133 Milano

I

Infn

S

Sezione di Trieste

2

2. ViaValerio

T

TS 34127Trieste

S

Sissa

I

International School for Advanced Studies

V

Via Bonomea 265

T

TS 34136Trieste

D

D. Astronomia

U

U. Bologna

V

V. G. 932

I

I. Bologna

6

62 vialeBertiPichat

4

40129 Bologna

D

D. Fisica

U

U. Genova

3

33 viaDodecaneso

1

16146

G

Genova

I

I. Genova

D

Department of PhysicsE. Pancini

U

U. Federico

6

6. ViaCinthia

8

80126

N

Napoli

I

I. -. Capodimonte

1

16 viaMoiariello

8

80131 Napoli

I

I. D. A. E. C. D. Espacco

U

U. Porto

C

Caup

R

Rua das Estrelas

P

P. Porto

P

Portugal

F

F. Porto

R

Rua do Campo Alegre

4

4169-007 Porto

E

E. Observatory

2

2. Karl-Schwarzschild-Str.

U

U. Torino

1

1. ViaP.Giuria

1

10125 Torino

I

I. Torino

I

I. Torino

2

20 viaOsservatorio

1

1. P. Torinese

E

European Space AgencyESTEC

1

1. Keplerlaan

2

2. Noordwijk

T

The Netherlands

I

Institute Lorentz

L

Leiden University

2

2. NielsBohrweg

2

2333 CA Leiden

L

L. Observatory

5

55 Einsteinweg

2

2333 CC Leiden

I

Inaf-Iasf Milano

1

12 ViaAlfonsoCorti

2

20133 Milano

C

Centro de Investigaciones Energ'eticas

M

Medioambientales y Tecnol'ogicas

4

40 AvenidaComplutense

2

28014 Madrid

S

Spain.

P

Port d'Informaci'o Cient'ifica

C

Campus Uab

C

C. Sn

0

08193 Bellaterra

I

I. D. E. D. Catalunya

E

Edifici Rdit

C

C. Upc

0

08860 Castelldefels

B

Barcelona

I

Institute of Space Sciences

C

Carrer de Can Magrans

S

Sn

0

08193 Barcelona

Format Sitasi

Kraljic, E.C.K., Laigle, C., Balogh, M., Jablonka, P., Kuchner, U., Malavasi, N. et al. (2026). Euclid preparation. LXXXVIII. 3D reconstruction of the cosmic web with Euclid Deep spectroscopic samples. https://doi.org/10.1051/0004-6361/202557286

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Informasi Jurnal
Tahun Terbit
2026
Bahasa
en
Sumber Database
Semantic Scholar
DOI
10.1051/0004-6361/202557286
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Open Access ✓