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Euclid preparation V. Predicted yield of redshift 7 < z < 9 quasars from the wide survey
- Barnett, R. (author)
- Warren, S. J. (author)
-
- Mortlock, Daniel John (author)
- Stockholms universitet,Institutionen för astronomi,Imperial College London, UK
- show more...
- Cuby, J.-G. (author)
- Conselice, C. (author)
- Hewett, P. C. (author)
- Willott, C. J. (author)
- Auricchio, N. (author)
- Balaguera-Antolinez, A. (author)
- Baldi, M. (author)
- Bardelli, S. (author)
- Bellagamba, F. (author)
- Bender, R. (author)
- Biviano, A. (author)
- Bonino, D. (author)
- Bozzo, E. (author)
- Branchini, E. (author)
- Brescia, M. (author)
- Brinchmann, J. (author)
- Burigana, C. (author)
- Camera, S. (author)
- Capobianco, V. (author)
- Carbone, C. (author)
- Carretero, J. (author)
- Carvalho, C. S. (author)
- Castander, F. J. (author)
- Castellano, M. (author)
- Cavuoti, S. (author)
- Cimatti, A. (author)
- Cledassou, R. (author)
- Congedo, G. (author)
- Conversi, L. (author)
- Copin, Y. (author)
- Corcione, L. (author)
- Coupon, J. (author)
- Courtois, H. M. (author)
- Cropper, M. (author)
- Da Silva, A. (author)
- Duncan, C. A. J. (author)
- Dusini, S. (author)
- Ealet, A. (author)
- Farrens, S. (author)
- Fosalba, P. (author)
- Fotopoulou, S. (author)
- Fourmanoit, N. (author)
- Frailis, M. (author)
- Fumana, M. (author)
- Galeotta, S. (author)
- Garilli, B. (author)
- Gillard, W. (author)
- Gillis, B. R. (author)
- Gracia-Carpio, J. (author)
- Grupp, F. (author)
- Hoekstra, H. (author)
- Hormuth, F. (author)
- Israel, H. (author)
- Jahnke, K. (author)
- Kermiche, S. (author)
- Kilbinger, M. (author)
- Kirkpatrick, C. C. (author)
- Kitching, T. (author)
- Kohley, R. (author)
- Kubik, B. (author)
- Kunz, M. (author)
- Kurki-Suonio, H. (author)
- Laureijs, R. (author)
- Ligori, S. (author)
- Lilje, P. B. (author)
- Lloro, I. (author)
- Maiorano, E. (author)
- Mansutti, O. (author)
- Marggraf, O. (author)
- Martinet, N. (author)
- Marulli, F. (author)
- Massey, R. (author)
- Mauri, N. (author)
- Medinaceli, E. (author)
- Mei, S. (author)
- Mellier, Y. (author)
- Metcalf, R. B. (author)
- Metge, J. J. (author)
- Meylan, G. (author)
- Moresco, M. (author)
- Moscardini, L. (author)
- Munari, E. (author)
- Neissner, C. (author)
- Niemi, S. M. (author)
- Nutma, T. (author)
- Padilla, C. (author)
- Paltani, S. (author)
- Pasian, F. (author)
- Paykari, P. (author)
- Percival, W. J. (author)
- Pettorino, V. (author)
- Polenta, G. (author)
- Poncet, M. (author)
- Pozzetti, L. (author)
- Raison, F. (author)
- Renzi, A. (author)
- Rhodes, J. (author)
- Rix, H.-W. (author)
- Romelli, E. (author)
- Roncarelli, M. (author)
- Rossetti, E. (author)
- Saglia, R. (author)
- Sapone, D. (author)
- Scaramella, R. (author)
- Schneider, P. (author)
- Scottez, V. (author)
- Secroun, A. (author)
- Serrano, S. (author)
- Sirri, G. (author)
- Stanco, L. (author)
- Sureau, F. (author)
- Tallada-Crespi, P. (author)
- Tavagnacco, D. (author)
- Taylor, A. N. (author)
- Tenti, M. (author)
- Tereno, I. (author)
- Toledo-Moreo, R. (author)
- Torradeflot, F. (author)
- Valenziano, L. (author)
- Vassallo, T. (author)
- Wang, Y. (author)
- Zacchei, A. (author)
- Zamorani, G. (author)
- Zoubian, J. (author)
- Zucca, E. (author)
- show less...
- (creator_code:org_t)
- 2019-10-25
- 2019
- English.
- In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 631
- Journal article (peer-reviewed)
Abstract
Subject headings
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- We provide predictions of the yield of 7 < z < 9 quasars from the Euclid wide survey, updating the calculation presented in the Euclid Red Book in several ways. We account for revisions to the Euclid near-infrared filter wavelengths; we adopt steeper rates of decline of the quasar luminosity function (QLF; Phi) with redshift, Phi proportional to 10(k(z-6)), k = 0:72, and a further steeper rate of decline, k = 0:92; we use better models of the contaminating populations (MLT dwarfs and compact early-type galaxies); and we make use of an improved Bayesian selection method, compared to the colour cuts used for the Red Book calculation, allowing the identification of fainter quasars, down to J(AB) similar to 23. Quasars at z > 8 may be selected from Euclid OYJH photometry alone, but selection over the redshift interval 7 < z < 8 is greatly improved by the addition of z-band data from, e.g., Pan-STARRS and LSST. We calculate predicted quasar yields for the assumed values of the rate of decline of the QLF beyond z = 6. If the decline of the QLF accelerates beyond z = 6, with k = 0.92, Euclid should nevertheless find over 100 quasars with 7.0 < z < 7.5, and similar to 25 quasars beyond the current record of z = 7.5, including similar to 8 beyond z = 8.0. The first Euclid quasars at z > 7.5 should be found in the DR1 data release, expected in 2024. It will be possible to determine the bright-end slope of the QLF, 7 < z < 8, M-1450 < 25, using 8m class telescopes to confirm candidates, but follow-up with JWST or E-ELT will be required to measure the faint-end slope. Contamination of the candidate lists is predicted to be modest even at J(AB) similar to 23. The precision with which k can be determined over 7 < z < 8 depends on the value of k, but assuming k = 0.72 it can be measured to a 1 sigma uncertainty of 0.07.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- quasars: general
- methods: statistical
- surveys
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
- Barnett, R.
- Warren, S. J.
- Mortlock, Daniel ...
- Cuby, J.-G.
- Conselice, C.
- Hewett, P. C.
- show more...
- Willott, C. J.
- Auricchio, N.
- Balaguera-Antoli ...
- Baldi, M.
- Bardelli, S.
- Bellagamba, F.
- Bender, R.
- Biviano, A.
- Bonino, D.
- Bozzo, E.
- Branchini, E.
- Brescia, M.
- Brinchmann, J.
- Burigana, C.
- Camera, S.
- Capobianco, V.
- Carbone, C.
- Carretero, J.
- Carvalho, C. S.
- Castander, F. J.
- Castellano, M.
- Cavuoti, S.
- Cimatti, A.
- Cledassou, R.
- Congedo, G.
- Conversi, L.
- Copin, Y.
- Corcione, L.
- Coupon, J.
- Courtois, H. M.
- Cropper, M.
- Da Silva, A.
- Duncan, C. A. J.
- Dusini, S.
- Ealet, A.
- Farrens, S.
- Fosalba, P.
- Fotopoulou, S.
- Fourmanoit, N.
- Frailis, M.
- Fumana, M.
- Galeotta, S.
- Garilli, B.
- Gillard, W.
- Gillis, B. R.
- Gracia-Carpio, J ...
- Grupp, F.
- Hoekstra, H.
- Hormuth, F.
- Israel, H.
- Jahnke, K.
- Kermiche, S.
- Kilbinger, M.
- Kirkpatrick, C. ...
- Kitching, T.
- Kohley, R.
- Kubik, B.
- Kunz, M.
- Kurki-Suonio, H.
- Laureijs, R.
- Ligori, S.
- Lilje, P. B.
- Lloro, I.
- Maiorano, E.
- Mansutti, O.
- Marggraf, O.
- Martinet, N.
- Marulli, F.
- Massey, R.
- Mauri, N.
- Medinaceli, E.
- Mei, S.
- Mellier, Y.
- Metcalf, R. B.
- Metge, J. J.
- Meylan, G.
- Moresco, M.
- Moscardini, L.
- Munari, E.
- Neissner, C.
- Niemi, S. M.
- Nutma, T.
- Padilla, C.
- Paltani, S.
- Pasian, F.
- Paykari, P.
- Percival, W. J.
- Pettorino, V.
- Polenta, G.
- Poncet, M.
- Pozzetti, L.
- Raison, F.
- Renzi, A.
- Rhodes, J.
- Rix, H.-W.
- Romelli, E.
- Roncarelli, M.
- Rossetti, E.
- Saglia, R.
- Sapone, D.
- Scaramella, R.
- Schneider, P.
- Scottez, V.
- Secroun, A.
- Serrano, S.
- Sirri, G.
- Stanco, L.
- Sureau, F.
- Tallada-Crespi, ...
- Tavagnacco, D.
- Taylor, A. N.
- Tenti, M.
- Tereno, I.
- Toledo-Moreo, R.
- Torradeflot, F.
- Valenziano, L.
- Vassallo, T.
- Wang, Y.
- Zacchei, A.
- Zamorani, G.
- Zoubian, J.
- Zucca, E.
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