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SPACE: the spectroscopic all-sky cosmic explorer

Cimatti, A.; Robberto, M.; Baugh, C.; Beckwith, S.V.W.; Content, R.; Daddi, E.; De Lucia, G.; Garilli, B.; Guzzo, L.; Kauffmann, G.; Lehnert, M.; Maccagni, D.; Martínez-Sansigre, A.; Pasian, F.; Reid, I.N.; Rosati, P.; Salvaterra, R.; Stiavelli, M.; Wang, Y.; Zapatero Osorio, M.; Balcells, M.; Bersanelli, M.; Bertoldi, F.; Blaizot, J.; Bottini, D.; Bower, R.; Bulgarelli, A.; Burgasser, A.; Burigana, C.; Butler, R.C.; Casertano, S.; Ciardi, B.; Cirasuolo, M.; Clampin, M.; Cole, S.; Comastri, A.; Cristiani, S.; Cuby, J.-G.; Cuttaia, F.; de Rosa, A.; Sanchez, A.D.; di Capua, M.; Dunlop, J.; Fan, X.; Ferrara, A.; Finelli, F.; Franceschini, A.; Franx, M.; Franzetti, P.; Frenk, C.; Gardner, J.P.; Gianotti, F.; Grange, R.; Gruppioni, C.; Gruppuso, A.; Hammer, F.; Hillenbrand, L.; Jacobsen, A.; Jarvis, M.; Kennicutt, R.; Kimble, R.; Kriek, M.; Kurk, J.; Kneib, J.-P.; Le Fevre, O.; Macchetto, D.; MacKenty, J.; Madau, P.; Magliocchetti, M.; Maino, D.; Mandolesi, N.; Masetti, N.; McLure, R.; Menn...

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A. Cimatti

M. Robberto

S.V.W. Beckwith

R. Content

E. Daddi

G. De Lucia

B. Garilli

L. Guzzo

G. Kauffmann

M. Lehnert

D. Maccagni

A. Martínez-Sansigre

F. Pasian

I.N. Reid

P. Rosati

R. Salvaterra

M. Stiavelli

Y. Wang

M. Zapatero Osorio

M. Balcells

M. Bersanelli

F. Bertoldi

J. Blaizot

D. Bottini

R. Bower

A. Bulgarelli

A. Burgasser

C. Burigana

R.C. Butler

S. Casertano

B. Ciardi

M. Cirasuolo

M. Clampin

S. Cole

A. Comastri

S. Cristiani

J.-G. Cuby

F. Cuttaia

A. de Rosa

A.D. Sanchez

M. di Capua

J. Dunlop

X. Fan

A. Ferrara

F. Finelli

A. Franceschini

M. Franx

P. Franzetti

J.P. Gardner

F. Gianotti

R. Grange

C. Gruppioni

A. Gruppuso

F. Hammer

L. Hillenbrand

A. Jacobsen

M. Jarvis

R. Kennicutt

R. Kimble

M. Kriek

J. Kurk

J.-P. Kneib

O. Le Fevre

D. Macchetto

J. MacKenty

P. Madau

M. Magliocchetti

D. Maino

N. Mandolesi

N. Masetti

R. McLure

A. Mennella

M. Meyer

M. Mignoli

B. Mobasher

E. Molinari

G. Morgante

L. Nicastro

E. Oliva

P. Padovani

E. Palazzi

F. Paresce

A. Perez Garrido

E. Pian

L. Popa

M. Postman

L. Pozzetti

J. Rayner

R. Rebolo

A. Renzini

H. Röttgering

E. Schinnerer

M. Scodeggio

M. Saisse

T. Shanks

A. Shapley

H. Shea

J. Silk

P. Spanó

J. Steinacker

L. Stringhetti

A. Szalay

L. Tresse

M. Trifoglio

M. Urry

L. Valenziano

F. Villa

I. Villo Perez

F. Walter

M. Ward

R. White

S. White

E. Wright

R. Wyse

G. Zamorani

A. Zacchei

W.W. Zeilinger

F. Zerbi


We describe the scientific motivations, the mission concept and the instrumentation of SPACE, a class-M mission proposed for concept study at the first call of the ESA Cosmic-Vision 2015–2025 planning cycle. SPACE aims to produce the largest three-dimensional evolutionary map of the Universe over the past 10 billion years by taking near-IR spectra and measuring redshifts for more than half a billion galaxies at 0 < z < 2 down to AB ∼ 23 over 3π sr of the sky. In addition, SPACE will also target a smaller sky field, performing a deep spectroscopic survey of millions of galaxies to AB ∼ 26 and at 2 < z < 10+. These goals are unreachable with ground-based observations due to the ≈500 times higher sky background (see e.g. Aldering, LBNL report number LBNL-51157, 2001). To achieve the main science objectives, SPACE will use a 1.5 m diameter Ritchey- Chretien telescope equipped with a set of arrays of Digital Micro-mirror Devices covering a total field of view of 0.4 deg2, and will perform large-multiplexing multi-object spectroscopy (e.g. ≈6000 targets per pointing) at a spectral resolution of R∼400 as well as diffraction-limited imaging with continuous coverage from 0.8 to 1.8 μm. Owing to the depth, redshift range, volume coverage and quality of its spectra, SPACE will reveal with unique sensitivity most of the fundamental cosmological signatures, including the power spectrum of density fluctuations and its turnover. SPACE will also place high accuracy constraints on the dark energy equation of state parameter and its evolution by measuring the baryonic acoustic oscillations imprinted when matter and radiation decoupled, the distanceluminosity relation of cosmological supernovae, the evolution of the cosmic expansion rate, the growth rate of cosmic large-scale structure, and high-z galaxy clusters. The datasets from the SPACE mission will represent a long lasting legacy for the whole astronomical community whose data will be mined for many years to come.


Cimatti, A., Robberto, M., Baugh, C., Beckwith, S., Content, R., Daddi, E., …Zerbi, F. (2009). SPACE: the spectroscopic all-sky cosmic explorer. Experimental Astronomy, 23(1), 39-66.

Journal Article Type Article
Publication Date Mar 1, 2009
Deposit Date Apr 11, 2012
Publicly Available Date May 22, 2012
Journal Experimental astronomy.
Print ISSN 0922-6435
Electronic ISSN 1572-9508
Publisher Springer
Peer Reviewed Peer Reviewed
Volume 23
Issue 1
Pages 39-66
Keywords Observational cosmology, Dark energy, Astronomical and space-research instrumentation.


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