Enrique Gaztanaga Portrait

Professor Enrique Gaztanaga

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

2025

Galaxy-Multiplet Clustering from DESI DR2

Wang, H., Eisenstein, D. J., Aguilar, J. N., Ahlen, S., Bianchi, D., Brooks, D., Claybaugh, T., Macorra, A. d. l., Dey, A., Dey, B., Doel, P., Ferraro, S., Font-Ribera, A., Forero-Romero, J. E., Gaztañaga, E., Gutierrez, G., Honscheid, K., Ishak, M., Joyce, R., Juneau, S., Kirkby, D., Kisner, T., Kremin, A., Lahav, O., Lamman, C., Landriau, M., Manera, M., Meisner, A., Miquel, R., Mueller, E., Nadathur, S., Niz, G., Palanque-Delabrouille, N., Percival, W. J., Prada, F., Pérez-Ràfols, I., Ross, A. J., Rossi, G., Sanchez, E., Schlegel, D., Schubnell, M., Silber, J. H., Sprayberry, D., Tarlé, G., Weaver, B. A., Zhou, R., Zou, H.

16 Nov 2025, In: Monthly Notices of the Royal Astronomical Society

Research output: Article

Enhancing multiplet alignment measurements with imaging

Kumwembe, A. A., Lamman, C., Eisenstein, D., Aguilar, J. N., Ahlen, S., Bianchi, D., Brooks, D., Claybaugh, T., Cuceu, A., Macorra, A. d. l., Dey, B., Doel, P., Font-Ribera, A., Forero-Romero, J. E., Gaztanaga, E., Gontcho, S. G. A., Gutierrez, G., Ishak, M., Jimenez, J., Joyce, D., Kehoe, R., Kisner, T., Lahav, O., Landriau, M., Manera, M., Miquel, R., Nadathur, S., Palanque-Delabrouille, N., Perez-Rafols, I., Prada, F., Rossi, G., Sanchez, E., Schlegel, D., Seo, H., Silber, J. H., Sprayberry, D., Tarle, G., Weaver, B. A.

5 Nov 2025, In: Research Notes of the AAS. 9, 6p., 305

Research output: Article

Constraining primordial non-Gaussianity from the large scale structure two-point and three-point correlation functions

Brown, Z., Demina, R., Adame, A. G., Avila, S., Chaussidon, E., Yuan, S., Gonzalez-Perez, V., García-Bellido, J., Levi, B., Aguilar, J., Ahlen, S., Blum, R., Brooks, D., Claybaugh, T., Cole, S., De La Macorra, A., Dey, B., Doel, P., Fanning, K., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. G. A., Honscheid, K., Howlett, C., Juneau, S., Kehoe, R., Kisner, T., Landriau, M., Le Guillou, L., Manera, M., Miquel, R., Mueller, E., Muñoz-Gutièrrez, A., Myers, A. D., Nie, J., Niz, G., Palanque-Delabrouille, N., Poppett, C., Rezaie, M., Rossi, G., Sanchez, E., Schlafly, E., Schlegel, D., Schubnell, M., Silber, J. H., Sprayberry, D., Tarlé, G., Vargas-Magaña, M., Weaver, B. A., Zhou, Z.

1 Nov 2025, In: Monthly Notices of the Royal Astronomical Society. 543, 3, p. 2078-2092, 15p.

Research output: Article

Dark Energy Survey Year 6 results: cell-based coadds and METADETECTION weak lensing shape catalogue

Yamamoto, M., Becker, M. R., Sheldon, E., Jarvis, M., Gruendl, R. A., Menanteau, F., Rykoff, E. S., Mau, S., Schutt, T., Gatti, M., Troxel, M. A., Amon, A., Anbajagane, D., Bernstein, G. M., Gruen, D., Huff, E. M., Tabbutt, M., Tong, A., Yanny, B., Abbott, T. M., Aguena, M., Alarcon, A., Andrade-Oliveira, F., Bechtol, K., Blazek, J., Brooks, D., Carnero Rosell, A., Carretero, J., Chang, C., Choi, A., Costanzi, M., Crocce, M., da Costa, L. N., Davis, T. M., De Vicente, J., Desai, S., Diehl, H. T., Dodelson, S., Doel, P., Doux, C., Drlica-Wagner, A., Ferté, A., Flaugher, B., Fosalba, P., Frieman, J., García-Bellido, J., Gaztanaga, E., Giannini, G., Gutierrez, G., Hartley, W. G.

1 Nov 2025, In: Monthly Notices of the Royal Astronomical Society. 543, 4, p. 4156-4186, 31p.

Research output: Article

A comprehensive characterization of Galaxy-Cool CGM connections at z<0.4 with DESI Year 1 Data

Ng, Y. V., Lan, T., Prochaska, J. X., Saintonge, A., Siudek, M., Aguilar, J. N., Ahlen, S., Bianchi, D., Brooks, D., Claybaugh, T., Macorra, A. d. l., Dey, A., Doel, P., Ferraro, S., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. G. A., Gutierrez, G., Honscheid, K., Ishak, M., Juneau, S., Kisner, T., Kremin, A., Landriau, M., Guillou, L. L., Manera, M., Meisner, A., Miquel, R., Moustakas, J., Myers, A., Nadathur, S., Poppett, C., Pérez-Ràfols, I., Rossi, G., Sanchez, E., Schlegel, D., Schubnell, M., Seo, H., Silber, J. H., Tarlé, G., Weaver, B. A., Zhou, R., Zou, H.

28 Oct 2025, In: The Astrophysical Journal. 993, 1, 17p., 92

Research output: Article

Spectroscopic Characterization of redMaPPer Galaxy Clusters with DESI

Myles, J., Gruen, D., Jeltema, T., Fu, S., Kremin, A., Aguilar, J., Ahlen, S., Bianchi, D., Brooks, D., Castander, F. J., Claybaugh, T., Macorra, A. d. l., Dey, A., Doel, P., Ferraro, S., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. G. A., Gutierrez, G., Honscheid, K., Ishak, M., Kehoe, R., Kirkby, D., Kisner, T., Lahav, O., Landriau, M., LeGuillou, L., Manera, M., Meisner, A., Miquel, R., Moustakas, J., Nadathur, S., Palanque-Delabrouille, N., Prada, F., Pérez-Ràfols, I., Rossi, G., Sanchez, E., Schlegel, D., Schubnell, M., Silber, J., Sprayberry, D., Tarlé, G., Weaver, B. A., Zhou, R.

22 Oct 2025, In: Monthly Notices of the Royal Astronomical Society

Research output: Article

Cosmology from Planck CMB Lensing and DESI DR1 Quasar Tomography

de Belsunce, R., Krolewski, A., Chiarenza, S., Chaussidon, E., Ferraro, S., Hadzhiyska, B., Ravoux, C., Sailer, N., Farren, G., Tamone, A., Aguilar, J., Ahlen, S., Bianchi, D., Brooks, D., Claybaugh, T., Cuceu, A., Macorra, A. d. l., Costa, J. D., Dey, B., Doel, P., Font-Ribera, A., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. G. A., Gutierrez, G., Guy, J., Herrera-Alcantar, H. K., Honscheid, K., Ishak, M., Joyce, R., Juneau, S., Kehoe, R., Kirkby, D., Kisner, T., Kremin, A., Lahav, O., Lambert, A., Lamman, C., Landriau, M., Guillou, L. L., Levi, M. E., Manera, M., Martini, P., Meisner, A., Miquel, R., Nadathur, S., Niz, G., Palanque-Delabrouille, N., Percival, W. J., Ross, A. J.

21 Oct 2025, In: Journal of Cosmology and Astroparticle Physics. 2025, 10, 39p., 077

Research output: Article

Cosmological implications of DESI DR2 BAO measurements in light of the latest ACT DR6 CMB data

Garcia-Quintero, C., Noriega, H. E., de Mattia, A., Aviles, A., Lodha, K., Chebat, D., Rohlf, J., Nadathur, S., Elbers, W., Aguilar, J., Ahlen, S., Alves, O., Andrade, U., BenZvi, S., Bianchi, D., Brooks, D., Burtin, E., Calderon, R., Rosell, A. C., Carrilho, P., Castander, F. J., Chaussidon, E., Claybaugh, T., Cole, S., Cuceu, A., de Belsunce, R., Macorra, A. d. l., Deiosso, N., Costa, J. D., Dey, A., Dey, B., Ding, Z., Doel, P., Font-Ribera, A., Forero-Romero, J. E., Gaztañaga, E., Gil-Marín, H., Gontcho, S. G. A., Gutierrez, G., Guy, J., Hahn, C., Herrera-Alcantar, H. K., Honscheid, K., Howlett, C., Huterer, D., Ishak, M., Juneau, S., Manera, M., Percival, W. J., Ross, A. J.

15 Oct 2025, In: Physical Review D. 112, 17p., 083529

Research output: Article

DESI Emission Line Galaxies: Clustering Dependence on Stellar Mass and [OII] Luminosity

Hagen, T., Dawson, K. S., Zheng, Z., Aguilar, J., Ahlen, S., BenZvi, S., Bianchi, D., Brooks, D., Castander, F. J., Claybaugh, T., Cuceu, A., Macorra, A. d. l., Doel, P., Ferraro, S., Font-Ribera, A., Forero-Romero, J. E., Gaztanaga, E., Gontcho, S. G. A., Gonzalez-Perez, V., Gutierrez, G., Hahn, C., Honscheid, K., Ishak, M., Juneau, S., Kehoe, R., Kisner, T., Kremin, A., Lamman, C., Landriau, M., Guillou, L. L., Leauthaud, A., Levi, M. E., Manera, M., Meisner, A., Miquel, R., Moustakas, J., Nadathur, S., Palanque-Delabrouille, N., Prada, F., Perez-Rafols, I., Ross, A. J., Rossi, G., Saito, S., Sanchez, E., Schlegel, D., Schubnell, M., Silber, J., Sprayberry, D., Tarle, G., Weaver, B. A.

9 Oct 2025, In: The Astrophysical Journal. 992, 1, 24p., 121

Research output: Article

Construction of the Damped Lyα Absorber Catalog for DESI DR2 Lyα BAO

Brodzeller, A., Wolfson, M., Ho, M., Tan, T., Pieri, M. M., Cuceu, A., Karim, M. A., Aguilar, J., Ahlen, S., Anand, A., Andrade, U., Armengaud, E., Aviles, A., Bault, A., Bianchi, D., Brooks, D., Canning, R., Casas, L., Charles, M., Chaussidon, E., Chaves-Montero, J., Chebat, D., Claybaugh, T., Dawson, K. S., de Belsunce, R., Macorra, A. d. l., de Mattia, A., Dey, A., Dey, B., Doel, P., Elbers, W., Ferraro, S., Font-Ribera, A., Forero-Romero, J. E., Garcia-Quintero, C., Garrison, L. H., Gaztañaga, E., Gontcho, S. G. A., Gonzalez-Morales, A. X., Gutierrez, G., Guy, J., Hahn, C., Herbold, M., Herrera-Alcantar, H. K., Honscheid, K., Howlett, C., Huterer, D., Manera, M., Nadathur, S., Percival, W. J.

6 Oct 2025, In: Physical Review D. 112, 22p., 083510

Research output: Article

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