Search Results for author: S. Fotopoulou

Found 4 papers, 3 papers with code

Euclid preparation: VII. Forecast validation for Euclid cosmological probes

3 code implementations21 Oct 2019 Euclid Collaboration, A. Blanchard, S. Camera, C. Carbone, V. F. Cardone, S. Casas, S. Ilić, M. Kilbinger, T. Kitching, M. Kunz, F. Lacasa, E. Linder, E. Majerotto, K. Markovič, M. Martinelli, V. Pettorino, A. Pourtsidou, Z. Sakr, A. G. Sánchez, D. Sapone, I. Tutusaus, S. Yahia-Cherif, V. Yankelevich, S. Andreon, H. Aussel, A. Balaguera-Antolínez, M. Baldi, S. Bardelli, R. Bender, A. Biviano, D. Bonino, A. Boucaud, E. Bozzo, E. Branchini, S. Brau-Nogue, M. Brescia, J. Brinchmann, C. Burigana, R. Cabanac, V. Capobianco, A. Cappi, J. Carretero, C. S. Carvalho, R. Casas, F. J. Castander, M. Castellano, S. Cavuoti, A. Cimatti, R. Cledassou, C. Colodro-Conde, G. Congedo, C. J. Conselice, L. Conversi, Y. Copin, L. Corcione, J. Coupon, H. M. Courtois, M. Cropper, A. Da Silva, S. de la Torre, D. Di Ferdinando, F. Dubath, F. Ducret, C. A. J. Duncan, X. Dupac, S. Dusini, G. Fabbian, M. Fabricius, S. Farrens, P. Fosalba, S. Fotopoulou, N. Fourmanoit, M. Frailis, E. Franceschi, P. Franzetti, M. Fumana, S. Galeotta, W. Gillard, B. Gillis, C. Giocoli, P. Gómez-Alvarez, J. Graciá-Carpio, F. Grupp, L. Guzzo, H. Hoekstra, F. Hormuth, H. Israel, K. Jahnke, E. Keihanen, S. Kermiche, C. C. Kirkpatrick, R. Kohley, B. Kubik, H. Kurki-Suonio, S. Ligori, P. B. Lilje, I. Lloro, D. Maino, E. Maiorano, O. Marggraf, N. Martinet, F. Marulli, R. Massey, E. Medinaceli, S. Mei, Y. Mellier, B. Metcalf, J. J. Metge, G. Meylan, M. Moresco, L. Moscardini, E. Munari, R. C. Nichol, S. Niemi, A. A. Nucita, C. Padilla, S. Paltani, F. Pasian, W. J. Percival, S. Pires, G. Polenta, M. Poncet, L. Pozzetti, G. D. Racca, F. Raison, A. Renzi, J. Rhodes, E. Romelli, M. Roncarelli, E. Rossetti, R. Saglia, P. Schneider, V. Scottez, A. Secroun, G. Sirri, L. Stanco, J. -L. Starck, F. Sureau, P. Tallada-Crespí, D. Tavagnacco, A. N. Taylor, M. Tenti, I. Tereno, R. Toledo-Moreo, F. Torradeflot, L. Valenziano, T. Vassallo, G. A. Verdoes Kleijn, M. Viel, Y. Wang, A. Zacchei, J. Zoubian, E. Zucca

We present new cosmological forecasts for Euclid.

Cosmology and Nongalactic Astrophysics

Estimating Photometric Redshifts for X-ray sources in the X-ATLAS field, using machine-learning techniques

no code implementations3 Oct 2017 G. Mountrichas, A. Corral, V. A. Masoura, I. Georgantopoulos, A. Ruiz, A. Georgakakis, F. J. Carrera, S. Fotopoulou

In particular, our measurements show that the estimated photometric redshifts for the X-ray sources of the training sample, have a normalized absolute median deviation, n_mad=0. 06, and the percentage of outliers, eta=10-14 percent, depending on whether the sources are extended or point-like.

Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics

Finding counterparts for All-sky X-ray surveys with Nway: a Bayesian algorithm for cross-matching multiple catalogues

1 code implementation30 May 2017 Mara Salvato, J. Buchner, T. Budavari, T. Dwelly, A. Merloni, M. Brusa, A. Rau, S. Fotopoulou, K. Nandra

We release the AllWISE counterparts and Gaia matches to 106, 573 and 17, 665 X-ray sources detected in the ROSAT 2RXS and XMMSL2 surveys with |b|>15.

Astrophysics of Galaxies High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics

The 2-10 keV unabsorbed luminosity function of AGN from the XMM-Newton LSS, CDFS and COSMOS surveys

1 code implementation17 Dec 2015 P. Ranalli, E. Koulouridis, I. Georgantopoulos, S. Fotopoulou, L. -T. Hsu, M. Salvato, A. Comastri, M. Pierre, N. Cappelluti, F. J. Carrera, L. Chiappetti, N. Clerc, R. Gilli, K. Iwasawa, F. Pacaud, S. Paltani, E. Plionis, C. Vignali

The binned luminosity function and its evolution is determined with a variant of the Page-Carrera method, improved to include corrections for absorption and to account for the full probability distribution of photometric redshifts.

High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics

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