The VIMOS Public Extragalactic Redshift Survey (VIPERS): spectral classification through principal component analysis

A. Marchetti; B. R. Granett; L. Guzzo; A. Fritz; B. Garilli; M. Scodeggio; U. Abbas; C. Adami; S. Arnouts; M. Bolzonella; D. Bottini; A. Cappi; J. Coupon; O. Cucciati; G. De Lucia; S. de la Torre; P. Franzetti; M. Fumana; O. Ilbert; A. Iovino; J. Krywult; V. Le Brun; O. Le Fevre; D. Maccagni; K. Malek; F. Marulli; H. J. McCracken; B. Meneux; L. Paioro; M. Polletta; A. Pollo; H. Schlagenhaufer; L. Tasca; R. Tojeiro; D. Vergani; A. Zanichelli; J. Bel; M. Bersanelli; J. Blaizot; E. Branchini; A. Burden; I. Davidzon; C. Di Porto; L. Guennou; C. Marinoni; Y. Mellier; L. Moscardini; R. C. Nichol; J. A. Peacock; W. J. Percival; S. Phleps; C. Schimd; M. Wolk; G. Zamorani

doi:10.1093/mnras/sts132

The VIMOS Public Extragalactic Redshift Survey (VIPERS): spectral classification through principal component analysis

A. Marchetti, B. R. Granett, L. Guzzo, A. Fritz, B. Garilli, M. Scodeggio, U. Abbas, C. Adami, S. Arnouts, M. Bolzonella, D. Bottini, A. Cappi, J. Coupon, O. Cucciati, G. De Lucia, S. de la Torre, P. Franzetti, M. Fumana, O. Ilbert, A. IovinoJ. Krywult, V. Le Brun, O. Le Fevre, D. Maccagni, K. Malek, F. Marulli, H. J. McCracken, B. Meneux, L. Paioro, M. Polletta, A. Pollo, H. Schlagenhaufer, L. Tasca, R. Tojeiro, D. Vergani, A. Zanichelli, J. Bel, M. Bersanelli, J. Blaizot, E. Branchini, A. Burden, I. Davidzon, C. Di Porto, L. Guennou, C. Marinoni, Y. Mellier, L. Moscardini, R. C. Nichol, J. A. Peacock, W. J. Percival, S. Phleps, C. Schimd, M. Wolk, G. Zamorani

Institute of Cosmology & Gravitation

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Abstract

We develop a Principal Component Analysis aimed at classifying a subset of 27 350 spectra of galaxies in the range 0.4 < z < 1.0 collected by the VIMOS Public Extragalactic Redshift Survey (VIPERS). We apply an iterative algorithm to simultaneously repair parts of spectra affected by noise and/or sky residuals, and reconstruct gaps due to rest-frame transformation, and obtain a set of orthogonal spectral templates that span the diversity of galaxy types. By taking the three most significant components, we find that we can describe the whole sample without contamination from noise. We produce a catalogue of eigencoefficients and template spectra that will be part of future VIPERS data releases. Our templates effectively condense the spectral information into two coefficients that can be related to the age and star formation rate of the galaxies. We examine the spectrophotometric types in this space and identify early, intermediate, late and starburst galaxies.

Original language	English
Pages (from-to)	1424-1437
Journal	Monthly Notices of the Royal Astronomical Society
Volume	428
Issue number	2
Early online date	29 Oct 2012
DOIs	https://doi.org/10.1093/mnras/sts132
Publication status	Published - 11 Jan 2013

Keywords

methods: data analysis
techniques: spectroscopic
galaxies: fundamental parameters
galaxies: general

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10.1093/mnras/sts132

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Marchetti, A., Granett, B. R., Guzzo, L., Fritz, A., Garilli, B., Scodeggio, M., Abbas, U., Adami, C., Arnouts, S., Bolzonella, M., Bottini, D., Cappi, A., Coupon, J., Cucciati, O., De Lucia, G., de la Torre, S., Franzetti, P., Fumana, M., Ilbert, O., ... Zamorani, G. (2013). The VIMOS Public Extragalactic Redshift Survey (VIPERS): spectral classification through principal component analysis. Monthly Notices of the Royal Astronomical Society, 428(2), 1424-1437. https://doi.org/10.1093/mnras/sts132

@article{3639a7943776492583a2e177746ae0c3,

title = "The VIMOS Public Extragalactic Redshift Survey (VIPERS): spectral classification through principal component analysis",

abstract = "We develop a Principal Component Analysis aimed at classifying a subset of 27 350 spectra of galaxies in the range 0.4 < z < 1.0 collected by the VIMOS Public Extragalactic Redshift Survey (VIPERS). We apply an iterative algorithm to simultaneously repair parts of spectra affected by noise and/or sky residuals, and reconstruct gaps due to rest-frame transformation, and obtain a set of orthogonal spectral templates that span the diversity of galaxy types. By taking the three most significant components, we find that we can describe the whole sample without contamination from noise. We produce a catalogue of eigencoefficients and template spectra that will be part of future VIPERS data releases. Our templates effectively condense the spectral information into two coefficients that can be related to the age and star formation rate of the galaxies. We examine the spectrophotometric types in this space and identify early, intermediate, late and starburst galaxies. ",

keywords = "methods: data analysis, techniques: spectroscopic, galaxies: fundamental parameters, galaxies: general",

author = "A. Marchetti and Granett, {B. R.} and L. Guzzo and A. Fritz and B. Garilli and M. Scodeggio and U. Abbas and C. Adami and S. Arnouts and M. Bolzonella and D. Bottini and A. Cappi and J. Coupon and O. Cucciati and {De Lucia}, G. and {de la Torre}, S. and P. Franzetti and M. Fumana and O. Ilbert and A. Iovino and J. Krywult and {Le Brun}, V. and {Le Fevre}, O. and D. Maccagni and K. Malek and F. Marulli and McCracken, {H. J.} and B. Meneux and L. Paioro and M. Polletta and A. Pollo and H. Schlagenhaufer and L. Tasca and R. Tojeiro and D. Vergani and A. Zanichelli and J. Bel and M. Bersanelli and J. Blaizot and E. Branchini and A. Burden and I. Davidzon and {Di Porto}, C. and L. Guennou and C. Marinoni and Y. Mellier and L. Moscardini and Nichol, {R. C.} and Peacock, {J. A.} and Percival, {W. J.} and S. Phleps and C. Schimd and M. Wolk and G. Zamorani",

year = "2013",

month = jan,

day = "11",

doi = "10.1093/mnras/sts132",

language = "English",

volume = "428",

pages = "1424--1437",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "2",

}

Marchetti, A, Granett, BR, Guzzo, L, Fritz, A, Garilli, B, Scodeggio, M, Abbas, U, Adami, C, Arnouts, S, Bolzonella, M, Bottini, D, Cappi, A, Coupon, J, Cucciati, O, De Lucia, G, de la Torre, S, Franzetti, P, Fumana, M, Ilbert, O, Iovino, A, Krywult, J, Le Brun, V, Le Fevre, O, Maccagni, D, Malek, K, Marulli, F, McCracken, HJ, Meneux, B, Paioro, L, Polletta, M, Pollo, A, Schlagenhaufer, H, Tasca, L, Tojeiro, R, Vergani, D, Zanichelli, A, Bel, J, Bersanelli, M, Blaizot, J, Branchini, E, Burden, A, Davidzon, I, Di Porto, C, Guennou, L, Marinoni, C, Mellier, Y, Moscardini, L, Nichol, RC, Peacock, JA, Percival, WJ, Phleps, S, Schimd, C, Wolk, M & Zamorani, G 2013, 'The VIMOS Public Extragalactic Redshift Survey (VIPERS): spectral classification through principal component analysis', Monthly Notices of the Royal Astronomical Society, vol. 428, no. 2, pp. 1424-1437. https://doi.org/10.1093/mnras/sts132

TY - JOUR

T1 - The VIMOS Public Extragalactic Redshift Survey (VIPERS)

T2 - spectral classification through principal component analysis

AU - Marchetti, A.

AU - Granett, B. R.

AU - Guzzo, L.

AU - Fritz, A.

AU - Garilli, B.

AU - Scodeggio, M.

AU - Abbas, U.

AU - Adami, C.

AU - Arnouts, S.

AU - Bolzonella, M.

AU - Bottini, D.

AU - Cappi, A.

AU - Coupon, J.

AU - Cucciati, O.

AU - De Lucia, G.

AU - de la Torre, S.

AU - Franzetti, P.

AU - Fumana, M.

AU - Ilbert, O.

AU - Iovino, A.

AU - Krywult, J.

AU - Le Brun, V.

AU - Le Fevre, O.

AU - Maccagni, D.

AU - Malek, K.

AU - Marulli, F.

AU - McCracken, H. J.

AU - Meneux, B.

AU - Paioro, L.

AU - Polletta, M.

AU - Pollo, A.

AU - Schlagenhaufer, H.

AU - Tasca, L.

AU - Tojeiro, R.

AU - Vergani, D.

AU - Zanichelli, A.

AU - Bel, J.

AU - Bersanelli, M.

AU - Blaizot, J.

AU - Branchini, E.

AU - Burden, A.

AU - Davidzon, I.

AU - Di Porto, C.

AU - Guennou, L.

AU - Marinoni, C.

AU - Mellier, Y.

AU - Moscardini, L.

AU - Nichol, R. C.

AU - Peacock, J. A.

AU - Percival, W. J.

AU - Phleps, S.

AU - Schimd, C.

AU - Wolk, M.

AU - Zamorani, G.

PY - 2013/1/11

Y1 - 2013/1/11

N2 - We develop a Principal Component Analysis aimed at classifying a subset of 27 350 spectra of galaxies in the range 0.4 < z < 1.0 collected by the VIMOS Public Extragalactic Redshift Survey (VIPERS). We apply an iterative algorithm to simultaneously repair parts of spectra affected by noise and/or sky residuals, and reconstruct gaps due to rest-frame transformation, and obtain a set of orthogonal spectral templates that span the diversity of galaxy types. By taking the three most significant components, we find that we can describe the whole sample without contamination from noise. We produce a catalogue of eigencoefficients and template spectra that will be part of future VIPERS data releases. Our templates effectively condense the spectral information into two coefficients that can be related to the age and star formation rate of the galaxies. We examine the spectrophotometric types in this space and identify early, intermediate, late and starburst galaxies.

AB - We develop a Principal Component Analysis aimed at classifying a subset of 27 350 spectra of galaxies in the range 0.4 < z < 1.0 collected by the VIMOS Public Extragalactic Redshift Survey (VIPERS). We apply an iterative algorithm to simultaneously repair parts of spectra affected by noise and/or sky residuals, and reconstruct gaps due to rest-frame transformation, and obtain a set of orthogonal spectral templates that span the diversity of galaxy types. By taking the three most significant components, we find that we can describe the whole sample without contamination from noise. We produce a catalogue of eigencoefficients and template spectra that will be part of future VIPERS data releases. Our templates effectively condense the spectral information into two coefficients that can be related to the age and star formation rate of the galaxies. We examine the spectrophotometric types in this space and identify early, intermediate, late and starburst galaxies.

KW - methods: data analysis

KW - techniques: spectroscopic

KW - galaxies: fundamental parameters

KW - galaxies: general

U2 - 10.1093/mnras/sts132

DO - 10.1093/mnras/sts132

M3 - Article

SN - 0035-8711

VL - 428

SP - 1424

EP - 1437

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

The VIMOS Public Extragalactic Redshift Survey (VIPERS): spectral classification through principal component analysis

Abstract

Keywords

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