Enrique Gaztanaga | University of Portsmouth

Summary

My expertise is in the area of Cosmological models and the Large Scale Structure (LSS): the distribution of galaxies, radiation and matter on the largest observable scales. In particular: i) how light from galaxies traces the underlaying mass: theory, measurements and simulations ii) comparison of perturbation theory to data and simulations: development of novel tools, iii) measurement and modelling of Galaxy-CMB cross-correlation techniques iv) measurements and modelling of higher order correlation function and Baryon Acoustic Oscillations (BAO), v) interpretation of cosmological models and the laws of Physics.

Research outputs

2026

DESI DR1 Ly$α$ 1D power spectrum: Validation of estimators

Karaçaylı, N. G., Ravoux, C., Martini, P., Goff, J. M. L., Armengaud, E., Abdul-Karim, M., Aguilar, J., Ahlen, S., Anand, A., BenZvi, S., Bianchi, D., Brooks, D., Claybaugh, T., Cuceu, A., Macorra, A. d. l., Dey, B., Doel, P., Ferraro, S., Font-Ribera, A., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. G. A., Gutierrez, G., Herrera-Alcantar, H. K., Honscheid, K., Ishak, M., Jimenez, J., Joyce, R., Kirkby, D., Kisner, T., Kremin, A., Lahav, O., Landriau, M., Guillou, L. L., Manera, M., Meisner, A., Miquel, R., Nadathur, S., Niz, G., Palanque-Delabrouille, N., Percival, W. J., Poppett, C., Prada, F., Pérez-Ràfols, I., Rossi, G., Sanchez, E., Schlegel, D., Schubnell, M., Seo, H., Silber, J.

16 Apr 2026, In: Journal of Cosmology and Astroparticle Physics. 2026, 04, 32p., 048

Research output: Article

Signatures of a Tidally Induced Spiral Arm at the Anticenter of the Milky Way and a Kinematically Extended Anticenter Stream Using DESI DR2

Lambert, M., Rockosi, C. M., Koposov, S. E., Li, T. S., Valluri, M., Silva, L. B. e., Li, S., Amarante, J. A. S., Byström, A., Medina, G. E., Sandford, N. R., Najita, J., Kizhuprakkat, N., Aguilar, J. N., Ahlen, S., Bianchi, D., Brooks, D., Claybaugh, T., Dawson, K., Macorra, A. d. l., Doel, P., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. G. A., Gutierrez, G., Joyce, D., Kremin, A., Lamman, C., Landriau, M., Guillou, L. L., Manera, M., Meisner, A., Miquel, R., Moustakas, J., Myers, A., Nadathur, S., Percival, W., Prada, F., Perez-Rafols, I., Rossi, G., Sanchez, E., Schlegel, D., Schubnell, M., Silber, J. H., Sprayberry, D., Tarle, G., Weaver, B. A., Zhou, R., Zou, H.

15 Apr 2026, In: The Astronomical Journal. 171, 5, 19p., 292

Research output: Article

Probing the environment around GW170817 with DESI: insights on galaxy group peculiar velocities for standard siren measurements

Amsellem, A. J., Palmese, A., Douglass, K., Howlett, C., Karp, J. S. M., Hernandez, I. M., Moustakas, J., Wechsler, R. H., Aguilar, J., Ahlen, S., Benzvi, S., Bianchi, D., Brooks, D., Carr, A., Claybaugh, T., Cuceu, A., Davis, T. M., Macorra, A. d. l., Dey, A., Dey, B., Doel, P., Font-Ribera, A., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. G. A., Gutierrez, G., Honscheid, K., Ishak, M., Joyce, R., Kehoe, R., Kisner, T., Kremin, A., Lahav, O., Lambert, A., Landriau, M., Guillou, L. L., Manera, M., Manwadkar, V., Meisner, A., Miquel, R., Myers, A. D., Nadathur, S., Niz, G., Palanque-Delabrouille, N., Percival, W. J., Poppett, C., Prada, F., Pérez-Ràfols, I., Raichoor, A., Rossi, G.

14 Apr 2026, In: The Astrophysical Journal. 1001, 2, 19p., 157

Research output: Article

Data Release 1 of the Dark Energy Spectroscopic Instrument

Collaboration, D., Karim, M. A., Adame, A. G., Aguado, D., Aguilar, J., Ahlen, S., Alam, S., Aldering, G., Alexander, D. M., Alfarsy, R., Allen, L., Prieto, C. A., Alves, O., Anand, A., Andrade, U., Armengaud, E., Avila, S., Aviles, A., Awan, H., Lizancos, A. B., Ballester, O., Bault, A., Bautista, J., BenZvi, S., Silva, L. B. e., Bermejo-Climent, J. R., Beutler, F., Bianchi, D., Blake, C., Blum, R., Canning, R., Findlay, N., Gaztañaga, E., Gil-Marín, H., Gonzalez-Perez, V., Graur, O., Gsponer, R., Howlett, C., Joudaki, S., Manera, M., Nadathur, S., Percival, W. J., Pieri, M. M., Ross, A. J., Ruggeri, R., Sabiu, C. G., Samushia, L., Tojeiro, R., Wang, M. S., Youles, S.

13 Apr 2026, In: The Astronomical Journal. 171, 5, 34p., 285

Research output: Article

The DESI DR1 peculiar velocity survey: growth rate measurements from the maximum likelihood fields method

Howlett, C., Aguilar, J., Ahlen, S., Amsellem, A. J., Bautista, J., BenZvi, S., Bianchi, D., Blake, C., Brooks, D., Carr, A., Claybaugh, T., Davis, T. M., de la Macorra, A., Doel, P., Douglass, K., Ferraro, S., Font-Ribera, A., Forero-Romero, J. E., Gaztañaga, E., Gutierrez, G., Guy, J., Herrera-Alcantar, H. K., Huterer, D., Ishak, M., Joyce, R., Kim, A., Kirkby, D., Kisner, T., Kremin, A., Lahav, O., Lamman, C., Landriau, M., Le Guillou, L., Leauthaud, A., Levi, M. E., Manera, M., Martini, P., Meisner, A., Miquel, R., Moustakas, J., Muñoz-Gutiérrez, A., Nadathur, S., Percival, W. J., Poppett, C., Prada, F., Pérez-Ràfols, I., Qin, F., Rossi, G., Said, K., Sanchez, E.

10 Apr 2026, In: Journal of Cosmology and Astroparticle Physics. 2026, 4, 42p., 026

Research output: Article

Euclid preparation: LXXXIX. Accurate and precise data-driven angular power spectrum covariances

Naidoo, K., Ruiz-Zapatero, J., Tessore, N., Joachimi, B., Loureiro, A., Aghanim, N., Altieri, B., Amara, A., Amendola, L., Andreon, S., Auricchio, N., Baccigalupi, C., Bagot, D., Baldi, M., Bardelli, S., Battaglia, P., Biviano, A., Branchini, E., Brescia, M., Camera, S., Capobianco, V., Carbone, C., Cardone, V. F., Carretero, J., Castellano, M., Castignani, G., Cavuoti, S., Chambers, K. C., Cimatti, A., Colodro-Conde, C., Congedo, G., Conversi, L., Copin, Y., Courbin, F., Courtois, H. M., Silva, A. D., Degaudenzi, H., Lucia, G. D., Dubath, F., Dupac, X., Dusini, S., Escoffier, S., Farina, M., Farinelli, R., Farrens, S., Percival, W. J., Gaztanaga, E., Joudaki, S., Nadathur, S.

8 Apr 2026, In: Astronomy and Astrophysics. 708, 20p., A167

Research output: Article

Euclid preparation: LXXXVIII. 3D reconstruction of the cosmic web with simulated Euclid Deep spectroscopic samples

Collaboration, E., Kraljic, K., Laigle, C., Balogh, M., Jablonka, P., Kuchner, U., Malavasi, N., Sarron, F., Pichon, C., Lucia, G. D., Bethermin, M., Durret, F., Fumagalli, M., Gouin, C., Magliocchetti, M., Sorce, J. G., Cucciati, O., Fontanot, F., Hirschmann, M., Kang, Y., Spinelli, M., Aghanim, N., Amara, A., Andreon, S., Auricchio, N., Baccigalupi, C., Baldi, M., Bardelli, S., Biviano, A., Branchini, E., Brescia, M., Brinchmann, J., Camera, S., Cañas-Herrera, G., Capobianco, V., Carbone, C., Carretero, J., Casas, R., Casas, S., Castander, F. J., Castellano, M., Castignani, G., Cavuoti, S., Chambers, K. C., Cimatti, A., Percival, W. J., Gaztanaga, E., Joudaki, S., Nadathur, S., Naidoo, K.

8 Apr 2026, In: Astronomy and Astrophysics. 708, 30p., A164

Research output: Article

The DESI DR1 peculiar velocity survey: growth rate measurements from the galaxy power spectrum

Qin, F., Blake, C., Howlett, C., Turner, R. J., Lodha, K., Bautista, J., Amsellem, A. J., Aguilar, J., Ahlen, S., Bianchi, D., Brooks, D., BenZvi, S., Carr, A., Chaussidon, E., Claybaugh, T., Cuceu, A., Macorra, A. d. l., Douglass, K., Doel, P., Ferraro, S., Font-Ribera, A., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. G. A., Gutierrez, G., Guy, J., Herrera-Alcantar, H. K., Honscheid, K., Huterer, D., Ishak, M., Joyce, R., Kim, A. G., Kirkby, D., Kisner, T., Kremin, A., Lahav, O., Lamman, C., Landriau, M., Guillou, L. L., Levi, M. E., Manera, M., Meisner, A., Miquel, R., Moustakas, J., Muñoz-Gutiérrez, A., Nadathur, S., Palanque-Delabrouille, N., Percival, W. J., Poppett, C., Prada, F.

8 Apr 2026, In: Astronomy and Astrophysics. 708, 23p., A219

Research output: Article

$H_0$ Without the Sound Horizon (or Supernovae): A 2% Measurement in DESI DR1

Zaborowski, E. A., Taylor, P., Honscheid, K., Cuceu, A., de Mattia, A., Krolewski, A., Rashkovetskyi, M., Ross, A. J., To, C., Aguilar, J., Ahlen, S., Anand, A., BenZvi, S., Bianchi, D., Brooks, D., Castander, F. J., Claybaugh, T., Macorra, A. d. l., Costa, J. D., Doel, P., Ferraro, S., Font-Ribera, A., Forero-Romero, J. E., Gaztañaga, E., Gutierrez, G., Herrera-Alcantar, H. K., Howlett, C., Huterer, D., Ishak, M., Joyce, R., Kirkby, D., Kisner, T., Kremin, A., Lahav, O., Lamman, C., Landriau, M., Guillou, L. L., Manera, M., Martini, P., Meisner, A., Miquel, R., Moustakas, J., Nadathur, S., Niz, G., Palanque-Delabrouille, N., Percival, W. J., Prada, F., Pérez-Ràfols, I., Rossi, G., Samushia, L.

2 Apr 2026, In: Journal of Cosmology and Astroparticle Physics. 2026, 04, 32p., 004

Research output: Article

Validation of the DESI-DR1 3x2-pt analysis: scale cut and shear ratio tests

Emas, N., Porredon, A., Blake, C., DeRose, J., Aguilar, J., Ahlen, S., Bianchi, D., Brooks, D., Castander, F. J., Claybaugh, T., Cuceu, A., Macorra, A. d. l., Dey, A., Dey, B., Doel, P., Ferraro, S., Forero-Romero, J. E., Garcia-Quintero, C., Gaztañaga, E., Gontcho, S. G. A., Gutierrez, G., Heydenreich, S., Honscheid, K., Huterer, D., Ishak, M., Joudaki, S., Joyce, R., Jullo, E., Juneau, S., Kehoe, R., Kirkby, D., Kisner, T., Kremin, A., Krolewski, A., Lahav, O., Landriau, M., Lange, J. U., Guillou, L. L., Leauthaud, A., Manera, M., Miquel, R., Nadathur, S., Percival, W. J., Prada, F., Rossi, G., Ruggeri, R., Sanchez, E., Saulder, C., Semenaite, A., Seo, H.

31 Mar 2026, In: Open Journal of Astrophysics. 9, 21p.

Research output: Article

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Professor Enrique Gaztanaga

Summary

Research outputs

2026