Bookmark Saya

Semantic Scholar Open Access 2026

Euclid Quick Data Release (Q1). AgileLens: A scalable CNN-based pipeline for strong gravitational lens identification

Euclid Collaboration X. Xu R. Chen T. Li A. Cooray S. Schuldt +495 lainnya
Lihat Sumber

Abstrak

We present an end-to-end, iterative pipeline for efficient identification of strong galaxy--galaxy lensing systems, applied to the Euclid Q1 imaging data. Starting from VIS catalogues, we reject point sources, apply a magnitude cut (I$_E$ $\leq$ 24) on deflectors, and run a pixel-level artefact/noise filter to build 96 $\times$ 96 pix cutouts; VIS+NISP colour composites are constructed with a VIS-anchored luminance scheme that preserves VIS morphology and NISP colour contrast. A VIS-only seed classifier supplies clear positives and typical impostors, from which we curate a morphology-balanced negative set and augment scarce positives. Among the six CNNs studied initially, a modified VGG16 (GlobalAveragePooling + 256/128 dense layers with the last nine layers trainable) performs best; the training set grows from 27 seed lenses (augmented to 1809) plus 2000 negatives to a colour dataset of 30,686 images. After three rounds of iterative fine-tuning, human grading of the top 4000 candidates ranked by the final model yields 441 Grade A/B candidate lensing systems, including 311 overlapping with the existing Q1 strong-lens catalogue, and 130 additional A/B candidates (9 As and 121 Bs) not previously reported. Independently, the model recovers 740 out of 905 (81.8%) candidate Q1 lenses within its top 20,000 predictions, considering off-centred samples. Candidates span I$_E$ $\simeq$ 17--24 AB mag (median 21.3 AB mag) and are redder in Y$_E$--H$_E$ than the parent population, consistent with massive early-type deflectors. Each training iteration required a week for a small team, and the approach easily scales to future Euclid releases; future work will calibrate the selection function via lens injection, extend recall through uncertainty-aware active learning, explore multi-scale or attention-based neural networks with fast post-hoc vetters that incorporate lens models into the classification.

Topik & Kata Kunci

Physics Computer Science

Penulis (500)

E

Euclid Collaboration X. Xu

R

R. Chen

T

T. Li

A

A. Cooray

S

S. Schuldt

J

J. A. A. Barroso

D

D. Stern

D

D. Scott

M

M. Meneghetti

G

G. Despali

J

J. Chopra

Y

Y. Cao

M

M. Cheng

J

J. Buda

J

J. Zhang

J

J. Furumizo

R

R. Valencia

Z

Z. Jiang

C

C. Tortora

N

N. E. P. Lines

T

T. Collett

S

S. Fotopoulou

A

A. Galan

A

A. Manj'on-Garc'ia

R

R. Gavazzi

L

L. Iwamoto

S

S. Kruk

M

M. Millon

P

P. Nugent

C

C. Saulder

D

D. Sluse

J

J. Wilde

M

M. Walmsley

F

F. Courbin

R

R. B. Metcalf

B

B. Altieri

A

A. Amara

S

S. Andreon

N

N. Auricchio

C

C. Baccigalupi

M

M. Baldi

A

A. Balestra

S

S. Bardelli

P

P. Battaglia

R

R. Bender

A

A. Biviano

E

E. Branchini

M

M. Brescia

S

S. Camera

V

V. Capobianco

C

C. Carbone

V

V. Cardone

J

J. Carretero

S

S. Casas

M

M. Castellano

G

G. Castignani

S

S. Cavuoti

A

A. Cimatti

C

C. Colodro-Conde

G

G. Congedo

C

C. Conselice

L

L. Conversi

Y

Y. Copin

H

H. Courtois

M

M. Cropper

A

A. Silva

H

H. Degaudenzi

G

G. Lucia

C

C. Dolding

H

H. Dole

F

F. Dubath

X

X. Dupac

S

S. Dusini

S

S. Escoffier

M

M. Farina

R

R. Farinelli

S

S. Farrens

S

S. Ferriol

F

F. Finelli

P

P. Fosalba

M

M. Frailis

E

E. Franceschi

M

M. Fumana

S

S. Galeotta

K

K. George

W

W. Gillard

B

B. Gillis

C

C. Giocoli

P

P. G'omez-Alvarez

J

J. Graciá-Carpio

A

A. Grazian

F

F. Grupp

S

S. Haugan

W

W. Holmes

F

F. Hormuth

A

A. Hornstrup

K

K. Jahnke

M

M. Jhabvala

B

B. Joachimi

S

S. Kermiche

A

A. Kiessling

B

B. Kubik

M

M. Kummel

M

M. Kunz

H

H. Kurki-Suonio

A

A. Brun

S

S. Ligori

P

P. Lilje

V

V. Lindholm

I

I. Lloro

G

G. Mainetti

E

E. Maiorano

O

O. Mansutti

S

S. Marcin

O

O. Marggraf

M

M. Martinelli

N

N. Martinet

F

F. Marulli

R

R. Massey

E

E. Medinaceli

S

S. Mei

M

M. Melchior

E

E. Merlin

G

G. Meylan

A

A. Mora

M

Michele Moresco

L

L. Moscardini

R

R. Nakajima

C

C. Neissner

R

R. Nichol

S

S. Niemi

J

J. Nightingale

C

C. Padilla

S

S. Paltani

F

F. Pasian

K

K. Pedersen

W

W. Percival

V

V. Pettorino

G

G. Polenta

M

M. Poncet

L

L. Popa

F

F. Raison

A

A. Renzi

J

J. Rhodes

G

G. Riccio

E

E. Romelli

M

M. Roncarelli

R

R. Saglia

Z

Z. Sakr

D

D. Sapone

M

M. Schirmer

P

P. Schneider

T

T. Schrabback

A

A. Secroun

G

G. Seidel

E

E. Sihvola

P

P. Simon

C

C. Sirignano

G

G. Sirri

L

L. Stanco

P

P. Tallada-Cresp'i

A

A. Taylor

I

I. Tereno

N

N. Tessore

S

S. Toft

R

R. Toledo-Moreo

F

F. Torradeflot

I

I. Tutusaus

L

L. Valenziano

J

J. Valiviita

T

T. Vassallo

G

G. Kleijn

A

A. Veropalumbo

Y

Y. Wang

J

J. Weller

A

A. Zacchei

G

G. Zamorani

F

F. Zerbi

E

E. Zucca

M

M. Ballardini

M

M. Bolzonella

C

C. Burigana

R

R. Cabanac

M

M. Calabrese

A

A. Cappi

T

T. Castro

J

J. Vigo

L

L. Gabarra

S

S. Hemmati

J

J. Macías-Pérez

R

R. Maoli

J

J. Mart'in-Fleitas

N

N. Mauri

P

P. Monaco

A

A. Nucita

A

A. Pezzotta

M

M. Pontinen

I

I. Risso

V

V. Scottez

M

M. Sereno

M

M. Tenti

M

M. Tucci

M

M. Viel

M

M. Wiesmann

Y

Y. Akrami

I

I. Andika

G

G. Angora

S

S. Anselmi

M

M. Archidiacono

F

F. Atrio-Barandela

L

L. Bazzanini

P

P. Bergamini

D

D. Bertacca

M

M. Bethermin

F

F. Beutler

L

L. Blot

S

S. Borgani

M

M. L. Brown

S

S. Bruton

A

A. Calabrò

B

B. Quevedo

F

F. Caro

C

C. Carvalho

F

F. Cogato

S

S. Conseil

O

O. Cucciati

S

S. Davini

G

G. Desprez

A

A. D'iaz-S'anchez

S

S. Domizio

J

J. M. Diego

P

P. Duc

V

V. Duret

M

M. Y. Elkhashab

A

A. Enia

Y

Y. Fang

A

A. Finoguenov

A

A. Franco

K

K. Ganga

T

T. Gasparetto

E

E. Gaztañaga

F

F. Giacomini

F

F. Gianotti

G

G. Gozaliasl

M

M. Guidi

C

C. M. Gutiérrez

A

A. Hall

C

C. Hern'andez-Monteagudo

H

H. Hildebrandt

J

J. Hjorth

J

J. Kajava

Y

Y. Kang

V

Vanshika Kansal

D

D. Karagiannis

K

K. Kiiveri

J

J. Kim

C

C. Kirkpatrick

F

F. Lepori

G

G. Leroy

G

G. Lesci

J

J. Lesgourgues

T

T. Liaudat

S

S. J. Liu

M

M. Magliocchetti

E

E. Magnier

F

F. Mannucci

C

C. Martins

L

L. Maurin

M

M. Miluzio

C

C. Moretti

G

G. Morgante

K

K. Naidoo

A

A. Navarro-Alsina

S

S. Nesseris

D

D. Paoletti

F

F. Passalacqua

K

K. Paterson

L

L. Patrizii

A

A. Pisani

D

D. Potter

G

G. Pratt

S

S. Quai

M

M. Radovich

K

K. Rojas

W

W. Roster

S

S. Sacquegna

M

M. Sahl'en

D

D. Sanders

E

E. Sarpa

C

C. Scarlata

A

A. Schneider

M

M. Schultheis

D

D. Sciotti

E

E. Sellentin

L

L. Smith

K

K. Tanidis

C

C. Tao

F

F. Tarsitano

G

G. Testera

R

R. Teyssier

S

S. Tosi

A

A. Troja

A

A. Venhola

D

D. Vergani

G

G. Vernardos

G

G. Verza

S

S. Vinciguerra

N

N. A. Walton

A

A. Wright

H

H. I. O. Astronomy

U

U. C. Irvine

I

Irvine CA 92697

U

Usa

U

U. California

3

3551 Trousdale Parkway

L

Los Angeles

C

CA 90089

D

Dipartimento di FisicaAldo Pontremoli

U

U. Milano

1

16 viaCeloria

2

20133 Milano

I

Italy

I

Inaf-Iasf Milano

1

12 ViaAlfonsoCorti

J

Jet propulsion Laboratory

C

C. I. O. Technology

4

4800 Oak Grove Drive

P

Pasadena

C

Ca

9

91109

D

D. Physics

A

Astronomy

U

U. Columbia

V

Vancouver

B

BC V6T 1Z1

C

Canada

I

I. Bologna

V

V. G. 933

4

40129 Bologna

I

I. Bologna

6

62 vialeBertiPichat

4

40129 Bologna

D

D. Bologna

V

V. G. 932

I

I. -. Capodimonte

1

16 viaMoiariello

8

80131 Napoli

I

Institute of Cosmology

G

Gravitation

U

U. Portsmouth

P

PO1 3FX

U

Uk

S

S. O. Physics

H

H. P. Laboratory

U

U. Bristol

T

Tyndall Avenue

B

Bristol

B

BS8 1TL

M

M. F. Astrophysik

1

1. Karl-Schwarzschild-Str.

8

85748 Garching

G

Germany

T

T. U. Munich

T

Tum School of Life Sciences

P

P. Department

1

1. James-Franck-Str.

D

Departamento de F'isica Aplicada

U

Universidad Polit'ecnica de Cartagena

C

Campus Muralla del Mar

3

30202 Cartagena

M

Murcia

S

Spain

A

A. Universit'e

C

Cnrs

C

Cnes

L

Lam

M

Marseille

F

France

I

I. Paris

U

Umr 7095

S

Sorbonne Universit'e

9

98 bis boulevard Arago

7

7. Paris

C

Center for Astrophysics Harvard Smithsonian

6

60 Garden St.

C

Cambridge

M

MA 02138

E

Esacesa

C

Camino Bajo de Castillo

S

Sn

U

Urb. Villafranca del Castillo

2

28692 Villanueva de la Canada

M

Madrid

U

U. Geneve

D

D'epartement de Physique Th'eorique

C

Centre for Theoretical Physics

2

24 quai Ernest-Ansermet

4

4. CH-1211Geneve

S

Switzerland.

L

Lawrence Livermore National Laboratory

O

O. Road

B

Berkeley

C

CA 94720

M

M. F. P. Physics

1

1. Giessenbachstr.

U

Universitatssternwarte Munchen

F

F. Physik

L

Ludwig-Maximilians-Universitat Munchen

1

1. Scheinerstr.

8

8. Munchen

S

S. Institute

U

U. Liege

Q

Quartier Agora

A

All'ee du six Aout 19c

4

4000 Liege

B

Belgium

I

Institut de Ci'encies del Cosmos

U

U. Barcelona

1

1. Mart'iiFranques

0

08193 Barcelona

D

D. B. M. R. I. O. Astrophysics

U

U. Toronto

5

50 St George Street

T

Toronto

O

ON M5S 3H4

J

J. B. C. F. Astrophysics

U

U. Manchester

O

Oxford Road

M

M13 9PL

I

I. C. D. R. I. E. Avanccats

2

23 PasseigdeLlu'isCompanys

0

08193 Barcelona

I

Institut de Ci'encies de l'Espai

C

Campus Uab

C

Carrer de Can Magrans

s

sn Cerdanyola del Vall'es

0

08193 Barcelona

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

Ifpu

I

Institute for Fundamental Physics of the Universe

2

2. viaBeirut

3

34127 Trieste

I

Inaf Trieste

1

11 ViaG.B.Tiepolo

3

34127 Trieste

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. A. D. Padova

5

5. Viadell'Osservatorio

3

35131 Padova

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

U

U. Torino

1

1. ViaP.Giuria

1

10125 Torino

I

I. Torino

I

I. Torino

2

20 viaOsservatorio

1

1. P. Torinese

I

Inafiasf Roma

3

33 viaFrascati

0

00078 Monte Porzio Catone

I

I. Roma

P

P. A. Moro

2

2. -. C. D. D. Fisica

E

Edificio G. Marconi

0

00133 Roma

C

Centro de Investigaciones Energ'eticas

M

Medioambientales y Tecnol'ogicas

4

40 AvenidaComplutense

2

28014 Madrid

P

Port d'Informaci'o Cient'ifica

C

C. Sn

0

08193 Bellaterra

Format Sitasi

APA MLA BibTeX
Xu, E.C.X., Chen, R., Li, T., Cooray, A., Schuldt, S., Barroso, J.A.A. et al. (2026). Euclid Quick Data Release (Q1). AgileLens: A scalable CNN-based pipeline for strong gravitational lens identification. https://www.semanticscholar.org/paper/5915848c2b9029e6bb0c804133de327a1d33b405

Akses Cepat

PDF tidak tersedia langsung

Cek di sumber asli →
Lihat di Sumber
Informasi Jurnal
Tahun Terbit
2026
Bahasa
en
Sumber Database
Semantic Scholar
Akses
Open Access ✓