Published 2013
| Version v1
Publication
The VIMOS Public Extragalactic Redshift Survey (VIPERS): spectral classification through principal component analysis
Creators
- 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.
- Iovino A.
- Krywult J.
- Le Brun V.
- Le Fevre O.
- Maccagni D.
- Malek K.
- Marulli F.
- McCracken H. J.
- 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, ENZO FRANCO
- Burden A.
- Davidzon I.
- Di Porto C.
- Guennou L.
- Marinoni C.
- Mellier Y.
- Moscardini L.
- Nichol R. C.
- Peacock J. A.
- Percival W. J.
- Phleps S.
- Schimd C.
- Wolk M.
- Zamorani G.
Contributors
Others:
- 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.
- Iovino, A.
- Krywult, J.
- Le Brun, V.
- Le Fevre, O.
- Maccagni, D.
- Malek, K.
- Marulli, F.
- Mccracken, H. J.
- 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, ENZO FRANCO
- Burden, A.
- Davidzon, I.
- Di Porto, C.
- Guennou, L.
- Marinoni, C.
- Mellier, Y.
- Moscardini, L.
- Nichol, R. C.
- Peacock, J. A.
- Percival, W. J.
- Phleps, S.
- Schimd, C.
- Wolk, M.
- Zamorani, G.
Description
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
Additional details
Identifiers
- URL
- http://hdl.handle.net/11567/1071342
- URN
- urn:oai:iris.unige.it:11567/1071342
Origin repository
- Origin repository
- UNIGE