Exploring cosmic origins with CORE: Extragalactic sources in cosmic microwave background maps

CORE

Research output: Contribution to journalArticle

Abstract

We discuss the potential of a next generation space-borne Cosmic Microwave Background (CMB) experiment for studies of extragalactic sources. Our analysis has particular bearing on the definition of the future space project, CORE, that has been submitted in response to ESA's call for a Medium-size mission opportunity as the successor of the Planck satellite. Even though the effective telescope size will be somewhat smaller than that of Planck, CORE will have a considerably better angular resolution at its highest frequencies, since, in contrast with Planck, it will be diffraction limited at all frequencies. The improved resolution implies a considerable decrease of the source confusion, i.e. substantially fainter detection limits. In particular, CORE will detect thousands of strongly lensed high-z galaxies distributed over the full sky. The extreme brightness of these galaxies will make it possible to study them, via follow-up observations, in extraordinary detail. Also, the CORE resolution matches the typical sizes of high-z galaxy proto-clusters much better than the Planck resolution, resulting in a much higher detection efficiency; these objects will be caught in an evolutionary phase beyond the reach of surveys in other wavebands. Furthermore, CORE will provide unique information on the evolution of the star formation in virialized groups and clusters of galaxies up to the highest possible redshifts. Finally, thanks to its very high sensitivity, CORE will detect the polarized emission of thousands of radio sources and, for the first time, of dusty galaxies, at mm and sub-mm wavelengths, respectively.

Original languageEnglish
Article number020
JournalJournal of Cosmology and Astroparticle Physics
Volume2018
Issue number4
DOIs
Publication statusPublished - 5 Apr 2018
Externally publishedYes

Fingerprint

galaxies
microwaves
confusion
angular resolution
European Space Agency
sky
star formation
brightness
telescopes
sensitivity
diffraction
wavelengths

Keywords

  • active galactic nuclei
  • CMBR experiments
  • galaxy evolution
  • galaxy surveys

Cite this

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title = "Exploring cosmic origins with CORE: Extragalactic sources in cosmic microwave background maps",
abstract = "We discuss the potential of a next generation space-borne Cosmic Microwave Background (CMB) experiment for studies of extragalactic sources. Our analysis has particular bearing on the definition of the future space project, CORE, that has been submitted in response to ESA's call for a Medium-size mission opportunity as the successor of the Planck satellite. Even though the effective telescope size will be somewhat smaller than that of Planck, CORE will have a considerably better angular resolution at its highest frequencies, since, in contrast with Planck, it will be diffraction limited at all frequencies. The improved resolution implies a considerable decrease of the source confusion, i.e. substantially fainter detection limits. In particular, CORE will detect thousands of strongly lensed high-z galaxies distributed over the full sky. The extreme brightness of these galaxies will make it possible to study them, via follow-up observations, in extraordinary detail. Also, the CORE resolution matches the typical sizes of high-z galaxy proto-clusters much better than the Planck resolution, resulting in a much higher detection efficiency; these objects will be caught in an evolutionary phase beyond the reach of surveys in other wavebands. Furthermore, CORE will provide unique information on the evolution of the star formation in virialized groups and clusters of galaxies up to the highest possible redshifts. Finally, thanks to its very high sensitivity, CORE will detect the polarized emission of thousands of radio sources and, for the first time, of dusty galaxies, at mm and sub-mm wavelengths, respectively.",
keywords = "active galactic nuclei, CMBR experiments, galaxy evolution, galaxy surveys",
author = "CORE and Zotti, {G. De} and J. Gonz{\'a}lez-Nuevo and M. Lopez-Caniego and M. Negrello and J. Greenslade and C. Hern{\'a}ndez-Monteagudo and J. Delabrouille and Cai, {Z. Y.} and M. Bonato and A. Ach{\'u}carro and P. Ade and R. Allison and M. Ashdown and M. Ballardini and Banday, {A. J.} and R. Banerji and Bartlett, {J. G.} and N. Bartolo and S. Basak and M. Bersanelli and M. Biesiada and M. Bilicki and A. Bonaldi and L. Bonavera and J. Borrill and F. Bouchet and F. Boulanger and T. Brinckmann and M. Bucher and C. Burigana and A. Buzzelli and M. Calvo and Carvalho, {C. S.} and Castellano, {M. G.} and A. Challinor and J. Chluba and Clements, {D. L.} and S. Clesse and S. Colafrancesco and I. Colantoni and A. Coppolecchia and M. Crook and G. D'Alessandro and {De Bernardis}, P. and {De Gasperis}, G. and Diego, {J. M.} and Valentino, {E. Di} and J. Errard and Feeney, {S. M.} and R. Fern{\'a}ndez-Cobos",
year = "2018",
month = "4",
day = "5",
doi = "10.1088/1475-7516/2018/04/020",
language = "English",
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Exploring cosmic origins with CORE : Extragalactic sources in cosmic microwave background maps. / CORE.

In: Journal of Cosmology and Astroparticle Physics, Vol. 2018, No. 4, 020, 05.04.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Exploring cosmic origins with CORE

T2 - Extragalactic sources in cosmic microwave background maps

AU - CORE

AU - Zotti, G. De

AU - González-Nuevo, J.

AU - Lopez-Caniego, M.

AU - Negrello, M.

AU - Greenslade, J.

AU - Hernández-Monteagudo, C.

AU - Delabrouille, J.

AU - Cai, Z. Y.

AU - Bonato, M.

AU - Achúcarro, A.

AU - Ade, P.

AU - Allison, R.

AU - Ashdown, M.

AU - Ballardini, M.

AU - Banday, A. J.

AU - Banerji, R.

AU - Bartlett, J. G.

AU - Bartolo, N.

AU - Basak, S.

AU - Bersanelli, M.

AU - Biesiada, M.

AU - Bilicki, M.

AU - Bonaldi, A.

AU - Bonavera, L.

AU - Borrill, J.

AU - Bouchet, F.

AU - Boulanger, F.

AU - Brinckmann, T.

AU - Bucher, M.

AU - Burigana, C.

AU - Buzzelli, A.

AU - Calvo, M.

AU - Carvalho, C. S.

AU - Castellano, M. G.

AU - Challinor, A.

AU - Chluba, J.

AU - Clements, D. L.

AU - Clesse, S.

AU - Colafrancesco, S.

AU - Colantoni, I.

AU - Coppolecchia, A.

AU - Crook, M.

AU - D'Alessandro, G.

AU - De Bernardis, P.

AU - De Gasperis, G.

AU - Diego, J. M.

AU - Valentino, E. Di

AU - Errard, J.

AU - Feeney, S. M.

AU - Fernández-Cobos, R.

PY - 2018/4/5

Y1 - 2018/4/5

N2 - We discuss the potential of a next generation space-borne Cosmic Microwave Background (CMB) experiment for studies of extragalactic sources. Our analysis has particular bearing on the definition of the future space project, CORE, that has been submitted in response to ESA's call for a Medium-size mission opportunity as the successor of the Planck satellite. Even though the effective telescope size will be somewhat smaller than that of Planck, CORE will have a considerably better angular resolution at its highest frequencies, since, in contrast with Planck, it will be diffraction limited at all frequencies. The improved resolution implies a considerable decrease of the source confusion, i.e. substantially fainter detection limits. In particular, CORE will detect thousands of strongly lensed high-z galaxies distributed over the full sky. The extreme brightness of these galaxies will make it possible to study them, via follow-up observations, in extraordinary detail. Also, the CORE resolution matches the typical sizes of high-z galaxy proto-clusters much better than the Planck resolution, resulting in a much higher detection efficiency; these objects will be caught in an evolutionary phase beyond the reach of surveys in other wavebands. Furthermore, CORE will provide unique information on the evolution of the star formation in virialized groups and clusters of galaxies up to the highest possible redshifts. Finally, thanks to its very high sensitivity, CORE will detect the polarized emission of thousands of radio sources and, for the first time, of dusty galaxies, at mm and sub-mm wavelengths, respectively.

AB - We discuss the potential of a next generation space-borne Cosmic Microwave Background (CMB) experiment for studies of extragalactic sources. Our analysis has particular bearing on the definition of the future space project, CORE, that has been submitted in response to ESA's call for a Medium-size mission opportunity as the successor of the Planck satellite. Even though the effective telescope size will be somewhat smaller than that of Planck, CORE will have a considerably better angular resolution at its highest frequencies, since, in contrast with Planck, it will be diffraction limited at all frequencies. The improved resolution implies a considerable decrease of the source confusion, i.e. substantially fainter detection limits. In particular, CORE will detect thousands of strongly lensed high-z galaxies distributed over the full sky. The extreme brightness of these galaxies will make it possible to study them, via follow-up observations, in extraordinary detail. Also, the CORE resolution matches the typical sizes of high-z galaxy proto-clusters much better than the Planck resolution, resulting in a much higher detection efficiency; these objects will be caught in an evolutionary phase beyond the reach of surveys in other wavebands. Furthermore, CORE will provide unique information on the evolution of the star formation in virialized groups and clusters of galaxies up to the highest possible redshifts. Finally, thanks to its very high sensitivity, CORE will detect the polarized emission of thousands of radio sources and, for the first time, of dusty galaxies, at mm and sub-mm wavelengths, respectively.

KW - active galactic nuclei

KW - CMBR experiments

KW - galaxy evolution

KW - galaxy surveys

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U2 - 10.1088/1475-7516/2018/04/020

DO - 10.1088/1475-7516/2018/04/020

M3 - Article

AN - SCOPUS:85047558299

VL - 2018

JO - JCAP

JF - JCAP

SN - 1475-7516

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ER -