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Lensing Without Borders: Measurements of galaxy-galaxy lensing and projected galaxy clustering in DESI DR1

Fuente: arXiv

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Autori principali:	Heydenreich, S., Leauthaud, A., Blake, C., Sun, Z., Lange, J. U., Zhang, T., DeMartino, M., Ross, A. J., Aguilar, J., Ahlen, S., Bianchi, D., Brooks, D., Castander, F. J., Claybaugh, T., Cuceu, A., de la Macorra, A., DeRose, J., Dey, Arjun, Dey, Biprateep, Doel, P., Emas, N., Ferraro, S., Font-Ribera, A., Forero-Romero, J. E., Garcia-Quintero, C., Gaztañaga, E., Gontcho, S. Gontcho A, Gutierrez, G., Hadzhiyska, B., Honscheid, K., Huterer, D., Ishak, M., Jeffrey, N., Joudaki, S., Jullo, E., Juneau, S., Kirkby, D., Kisner, T., Kremin, A., Krolewski, A., Lahav, O., Lamman, C., Landriau, M., Guillou, L. Le, Manera, M., Meisner, A., Miquel, R., Nadathur, S., Palanque-Delabrouille, N., Percival, W. J., Porredon, A., Prada, F., Pérez-Ràfols, I., Rossi, G., Ruggeri, R., Sanchez, E., Saulder, C., Schlegel, D., Semenaite, A., Silber, J., Sprayberry, D., Tarlé, G., Weaver, B. A., Yuan, S., Zarrouk, P., Zhou, R., Zou, H.
Natura:	Preprint
Pubblicazione:	2025
Soggetti:	Cosmology and Nongalactic Astrophysics
Accesso online:	Acceder al recurso
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_version_	1866908425227599872
author	Heydenreich, S. Leauthaud, A. Blake, C. Sun, Z. Lange, J. U. Zhang, T. DeMartino, M. Ross, A. J. Aguilar, J. Ahlen, S. Bianchi, D. Brooks, D. Castander, F. J. Claybaugh, T. Cuceu, A. de la Macorra, A. DeRose, J. Dey, Arjun Dey, Biprateep Doel, P. Emas, N. Ferraro, S. Font-Ribera, A. Forero-Romero, J. E. Garcia-Quintero, C. Gaztañaga, E. Gontcho, S. Gontcho A Gutierrez, G. Hadzhiyska, B. Honscheid, K. Huterer, D. Ishak, M. Jeffrey, N. Joudaki, S. Jullo, E. Juneau, S. Kirkby, D. Kisner, T. Kremin, A. Krolewski, A. Lahav, O. Lamman, C. Landriau, M. Guillou, L. Le Manera, M. Meisner, A. Miquel, R. Nadathur, S. Palanque-Delabrouille, N. Percival, W. J. Porredon, A. Prada, F. Pérez-Ràfols, I. Rossi, G. Ruggeri, R. Sanchez, E. Saulder, C. Schlegel, D. Semenaite, A. Silber, J. Sprayberry, D. Tarlé, G. Weaver, B. A. Yuan, S. Zarrouk, P. Zhou, R. Zou, H.
author_facet	Heydenreich, S. Leauthaud, A. Blake, C. Sun, Z. Lange, J. U. Zhang, T. DeMartino, M. Ross, A. J. Aguilar, J. Ahlen, S. Bianchi, D. Brooks, D. Castander, F. J. Claybaugh, T. Cuceu, A. de la Macorra, A. DeRose, J. Dey, Arjun Dey, Biprateep Doel, P. Emas, N. Ferraro, S. Font-Ribera, A. Forero-Romero, J. E. Garcia-Quintero, C. Gaztañaga, E. Gontcho, S. Gontcho A Gutierrez, G. Hadzhiyska, B. Honscheid, K. Huterer, D. Ishak, M. Jeffrey, N. Joudaki, S. Jullo, E. Juneau, S. Kirkby, D. Kisner, T. Kremin, A. Krolewski, A. Lahav, O. Lamman, C. Landriau, M. Guillou, L. Le Manera, M. Meisner, A. Miquel, R. Nadathur, S. Palanque-Delabrouille, N. Percival, W. J. Porredon, A. Prada, F. Pérez-Ràfols, I. Rossi, G. Ruggeri, R. Sanchez, E. Saulder, C. Schlegel, D. Semenaite, A. Silber, J. Sprayberry, D. Tarlé, G. Weaver, B. A. Yuan, S. Zarrouk, P. Zhou, R. Zou, H.
contents	We present Galaxy-Galaxy Lensing measurements obtained by cross-correlating spectroscopically observed galaxies from the first data release of the Dark Energy Spectroscopic Instrument (DESI) with source galaxies from the Hyper Suprime-Cam Subaru Strategic Survey, the Kilo-Degree Survey, the Sloan Digital Sky Survey, and the Dark Energy Survey. Specifically, we measure the excess surface mass density $ΔΣ$ and tangential shear $γ_\mathrm{t}$ for the Bright Galaxy Sample and Luminous Red Galaxies measured within the first year of observations with DESI. To ensure robustness, we test the measurements for systematic biases, finding no significant trends related to the properties of the \acrshort{desi} lens galaxies. We identify a significant trend with the average redshift of source galaxies, however, this trend vanishes once we apply shifts to the Hyper Suprime-Cam Subaru Strategic Survey redshift distributions that are also favored by their fiducial cosmology analysis. Additionally, we compare the observed scatter in the measurements with the theoretical covariance and find excess scatter, driven primarily by small-scale measurements of $r\leq 1 \, \mathrm{Mpc}/h$; measurements on larger scales are consistent at the $2\,σ$ level. We further present the projected clustering measurements $w_p$ of the galaxy samples in the the first data release of DESI. These measurements, which will be made publicly available, serve as a foundation for forthcoming cosmological analyses.
format	Preprint
id	arxiv_https___arxiv_org_abs_2506_21677
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Lensing Without Borders: Measurements of galaxy-galaxy lensing and projected galaxy clustering in DESI DR1 Heydenreich, S. Leauthaud, A. Blake, C. Sun, Z. Lange, J. U. Zhang, T. DeMartino, M. Ross, A. J. Aguilar, J. Ahlen, S. Bianchi, D. Brooks, D. Castander, F. J. Claybaugh, T. Cuceu, A. de la Macorra, A. DeRose, J. Dey, Arjun Dey, Biprateep Doel, P. Emas, N. Ferraro, S. Font-Ribera, A. Forero-Romero, J. E. Garcia-Quintero, C. Gaztañaga, E. Gontcho, S. Gontcho A Gutierrez, G. Hadzhiyska, B. Honscheid, K. Huterer, D. Ishak, M. Jeffrey, N. Joudaki, S. Jullo, E. Juneau, S. Kirkby, D. Kisner, T. Kremin, A. Krolewski, A. Lahav, O. Lamman, C. Landriau, M. Guillou, L. Le Manera, M. Meisner, A. Miquel, R. Nadathur, S. Palanque-Delabrouille, N. Percival, W. J. Porredon, A. Prada, F. Pérez-Ràfols, I. Rossi, G. Ruggeri, R. Sanchez, E. Saulder, C. Schlegel, D. Semenaite, A. Silber, J. Sprayberry, D. Tarlé, G. Weaver, B. A. Yuan, S. Zarrouk, P. Zhou, R. Zou, H. Cosmology and Nongalactic Astrophysics We present Galaxy-Galaxy Lensing measurements obtained by cross-correlating spectroscopically observed galaxies from the first data release of the Dark Energy Spectroscopic Instrument (DESI) with source galaxies from the Hyper Suprime-Cam Subaru Strategic Survey, the Kilo-Degree Survey, the Sloan Digital Sky Survey, and the Dark Energy Survey. Specifically, we measure the excess surface mass density $ΔΣ$ and tangential shear $γ_\mathrm{t}$ for the Bright Galaxy Sample and Luminous Red Galaxies measured within the first year of observations with DESI. To ensure robustness, we test the measurements for systematic biases, finding no significant trends related to the properties of the \acrshort{desi} lens galaxies. We identify a significant trend with the average redshift of source galaxies, however, this trend vanishes once we apply shifts to the Hyper Suprime-Cam Subaru Strategic Survey redshift distributions that are also favored by their fiducial cosmology analysis. Additionally, we compare the observed scatter in the measurements with the theoretical covariance and find excess scatter, driven primarily by small-scale measurements of $r\leq 1 \, \mathrm{Mpc}/h$; measurements on larger scales are consistent at the $2\,σ$ level. We further present the projected clustering measurements $w_p$ of the galaxy samples in the the first data release of DESI. These measurements, which will be made publicly available, serve as a foundation for forthcoming cosmological analyses.
title	Lensing Without Borders: Measurements of galaxy-galaxy lensing and projected galaxy clustering in DESI DR1
topic	Cosmology and Nongalactic Astrophysics
url	https://arxiv.org/abs/2506.21677