The PAU survey: star-galaxy classification with multi narrow-band data

被引：18

作者：

Cabayol, L. ^{[1
]}

Sevilla-Noarbe, I. ^{[2
]}

Fernandez, E. ^{[1
]}

Carretero, J. ^{[1
,10
]}

Eriksen, M. ^{[1
,10
]}

Serrano, S. ^{[3
]}

Alarcon, A. ^{[3
,4
]}

Amara, A. ^{[5
]}

Casas, R. ^{[3
,4
]}

Castander, F. J. ^{[3
,4
]}

De Vicente, J. ^{[2
]}

Folger, M. ^{[3
,4
]}

Garcia-Bellido, J. ^{[6
]}

Gaztanaga, E. ^{[3
,4
]}

Hoekstra, H. ^{[7
]}

Miquel, R. ^{[1
,8
]}

Padilla, C. ^{[1
]}

Sanchez, E. ^{[2
]}

Stothert, L. ^{[9
]}

Tallada, P. ^{[2
,10
]}

Tortorelli, L. ^{[5
]}

机构：

[1] Barcelona Inst Sci & Technol, IFAE, E-08193 Bellaterra, Barcelona, Spain

[2] Ctr Invest Energet Medioambientales & Tecnol CIEM, E-28040 Madrid, Spain

[3] CSIC, Inst Space Sci ICE, Campus UAB,Carrer Can Magrans S-N, E-08193 Barcelona, Spain

[4] IEEC, E-08193 Barcelona, Spain

[5] Swiss Fed Inst Technol, Inst Particle Phys & Astrophys, Wolfgang Pauli Str 27, CH-8093 Zurich, Switzerland

[6] Univ Autonoma Madrid, CSIC, Inst Fis Teor, E-28049 Madrid, Spain

[7] Leiden Univ, Leiden Observ, NL-2333 CA Leiden, Netherlands

[8] Inst Catalana Recerca & Estudis Avancats, E-08010 Barcelona, Spain

[9] Univ Durham, Dept Phys, Inst Computat Cosmol, South Rd, Durham DH1 3LE, England

[10] PIC, Campus UAB,C Albareda S-N, E-08193 Bellaterra, Cerdanyola Del, Spain

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2019年 / 483卷 / 01期

关键词：

methods: data analysis; techniques: photometric; PHOTOMETRIC REDSHIFTS; ALHAMBRA SURVEY; SEPARATION; IMAGES; COSMOS;

D O I：

10.1093/mnras/sty3129

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Classification of stars and galaxies is a well-known astronomical problem that has been treated using different approaches, most of them relying on morphological information. In this paper, we tackle this issue using the low-resolution spectra from narrow-band photometry, provided by the Physics of the Accelerating Universe survey. We find that, with the photometric fluxes from the 40 narrow-band filters and without including morphological information, it is possible to separate stars and galaxies to very high precision, 98.4 per cent purity with a completeness of 98.8 per cent for objects brighter than I = 22.5. This precision is obtained with a convolutional neural network as a classification algorithm, applied to the objects' spectra. We have also applied the method to the ALHAMBRA photometric survey and we provide an updated classification for its Gold sample.

引用

页码：529 / 539

页数：11

共 50 条

[1] STAR-GALAXY CLASSIFICATION IN MULTI-BAND OPTICAL IMAGING
Fadely, Ross
Hogg, David W.
Willman, Beth
[J]. ASTROPHYSICAL JOURNAL, 2012, 760 (01):
[2] The PAU survey: measurement of narrow-band galaxy properties with approximate bayesian computation
Tortorelli, Luca
Siudek, Malgorzata
Moser, Beatrice
Kacprzak, Tomasz
Berner, Pascale
Refregier, Alexandre
Amara, Adam
Garcia-Bellido, Juan
Cabayol, Laura
Carretero, Jorge
Castander, Francisco J.
De Vicente, Juan
Eriksen, Martin
Fernandez, Enrique
Gaztanaga, Enrique
Hildebrandt, Hendrik
Joachimi, Benjamin
Miquel, Ramon
Sevilla-Noarbe, Ignacio
Padilla, Cristobal
Renard, Pablo
Sanchez, Eusebio
Serrano, Santiago
Tallada-Crespi, Pau
Wright, Angus H.
[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2021, (12):
[3] The PAU Survey: spectral features and galaxy clustering using simulated narrow-band photometry
Stothert, L.
Norberg, P.
Baugh, C. M.
Alarcon, A.
Amara, A.
Carretero, J.
Castander, F. J.
Eriksen, M.
Fernandez, E.
Fosalba, P.
Garcia-Bellido, J.
Gaztanaga, E.
Hoekstra, H.
Padilla, C.
Refregier, A.
Sanchez, E.
Tortorelli, L.
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2018, 481 (03) : 4221 - 4235
[4] The PAU Survey: a forward modeling approach for narrow-band imaging
Tortorelli, Luca
Della Bruna, Lorenza
Herbel, Jorg
Amara, Adam
Refregier, Alexandre
Alarcon, Alex
Carretero, Jorge
Castander, Francisco J.
De Vicente, Juan
Eriksen, Martin
Fernandez, Enrique
Folger, Martin
Garcia-Bellido, Juan
Gaztanaga, Enrique
Miquel, Ramon
Padilla, Cristobal
Sanchez, Eusebio
Serrano, Santiago
Stothert, Lee
Tallada, Pau
Tonello, Nadia
[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2018, (11):
[5] The miniJPAS survey: star-galaxy classification using machine learning
Baqui, P. O.
Marra, V.
Casarini, L.
Angulo, R.
Diaz-Garcia, L. A.
Hernandez-Monteagudo, C.
Lopes, P. A. A.
Lopez-Sanjuan, C.
Muniesa, D.
Placco, V. M.
Quartin, M.
Queiroz, C.
Sobral, D.
Solano, E.
Tempel, E.
Varela, J.
Vilchez, J. M.
Abramo, R.
Alcaniz, J.
Benitez, N.
Bonoli, S.
Carneiro, S.
Cenarro, A. J.
Cristobal-Hornillos, D.
de Amorim, A. L.
de Oliveira, C. M.
Dupke, R.
Ederoclite, A.
Gonzalez Delgado, R. M.
Marin-Franch, A.
Moles, M.
Ramio, H. Vazquez
Sodre, L.
Taylor, K.
[J]. ASTRONOMY & ASTROPHYSICS, 2021, 645 (645)
[6] Star-galaxy classification in the Dark Energy Survey Y1 data set
Sevilla-Noarbe, I.
Hoyle, B.
Marcha, M. J.
Soumagnac, M. T.
Bechtol, K.
Drlica-Wagner, A.
Abdalla, F.
Aleksic, J.
Avestruz, C.
Balbinot, E.
Banerji, M.
Bertin, E.
Bonnett, C.
Brunner, R.
Carrasco-Kind, M.
Choi, A.
Giannantonio, T.
Kim, E.
Lahav, O.
Moraes, B.
Nord, B.
Ross, A. J.
Rykoff, E. S.
Santiago, B.
Sheldon, E.
Wei, K.
Wester, W.
Yanny, B.
Abbott, T.
Allam, S.
Brooks, D.
Carnero-Rosell, A.
Carretero, J.
Cunha, C.
da Costa, L.
Davis, C.
de Vicente, J.
Desai, S.
Doel, P.
Fernandez, E.
Flaugher, B.
Frieman, J.
Garcia-Bellido, J.
Gaztanaga, E.
Gruen, D.
Gruendl, R.
Gschwend, J.
Gutierrez, G.
Hollowood, D. L.
Honscheid, K.
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2018, 481 (04) : 5451 - 5469
[7] A Bayesian approach to star-galaxy classification
Henrion, Marc
Mortlock, Daniel J.
Hand, David J.
Gandy, Axel
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 412 (04) : 2286 - 2302
[8] The PAU Survey: narrow-band photometric redshifts using Gaussian processes
Soo, John Y. H.
Joachimi, Benjamin
Eriksen, Martin
Siudek, Malgorzata
Alarcon, Alex
Cabayol, Laura
Carretero, Jorge
Casas, Ricard
Castander, Francisco J.
Fernandez, Enrique
Garcia-Bellido, Juan
Gaztanaga, Enrique
Hildebrandt, Hendrik
Hoekstra, Henk
Miquel, Ramon
Padilla, Cristobal
Sanchez, Eusebio
Serrano, Santiago
Tallada-Crespi, Pau
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2021, 503 (03) : 4118 - 4135
[9] The PAU survey: measurements of the 4000 Å spectral break with narrow-band photometry
Renard, Pablo
Siudek, Malgorzata
Eriksen, Martin B.
Cabayol, Laura
Cai, Zheng
Carretero, Jorge
Casas, Ricard
Castander, Francisco J.
Fernandez, Enrique
Garcia-Bellido, Juan
Gaztanaga, Enrique
Hoekstra, Henk
Joachimi, Benjamin
Miquel, Ramon
Navarro-Girones, David
Padilla, Cristobal
Sanchez, Eusebio
Serrano, Santiago
Tallada-Crespi, Pau
De Vicente, Juan
Wittje, Anna
Wright, Angus H.
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2022, 515 (01) : 146 - 166
[10] The PAU Survey: Intrinsic alignments and clustering of narrow-band photometric galaxies
Johnston, Harry
Joachimi, Benjamin
Norberg, Peder
Hoekstra, Henk
Eriksen, Martin
Fortuna, Maria Cristina
Manzoni, Giorgio
Serrano, Santiago
Siudek, Malgorzata
Tortorelli, Luca
Asorey, Jacobo
Cabayol, Laura
Carretero, Jorge
Casas, Ricard
Castander, Francisco
Crocce, Martin
Fernandez, Enrique
Garcia-Bellido, Juan
Gaztanaga, Enrique
Hildebrandt, Hendrik
Miquel, Ramon
Navarro-Girones, David
Padilla, Cristobal
Sanchez, Eusebio
Sevilla-Noarbe, Ignacio
Tallada-Crespi, Pau
[J]. ASTRONOMY & ASTROPHYSICS, 2021, 646

← 1 2 3 4 5 →