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The DESI DR1 Peculiar Velocity Survey: Global Zero-point and H₀ Constraints

Authors: A. Carr, C. Howlett, A. J. Amsellem, Tamara M. Davis, K. Said, D. Parkinson, A. Palmese, J. Aguilar, S. Ahlen, J. Bautista, S. BenZvi, D. Bianchi, C. Blake, D. Brooks, T. Claybaugh, A. Cuceu, A. de la Macorra, P. Doel, K. Douglass, S. Ferraro, J. E. Forero-Romero, E. Gaztañaga, S. Gontcho A Gontcho, G. Gutierrez, H. K. Herrera-Alcantar, K. Honscheid, D. Huterer, M. Ishak, R. Joyce, A. G. Kim, D. Kirkby, A. Kremin, O. Lahav, C. Lamman, M. Landriau, L. Le Guillou, M. E. Levi, M. Manera, A. Meisner, R. Miquel, J. Moustakas, S. Nadathur, W. J. Percival, F. Prada, I. Pérez-Ràfols, F. Qin, C. Ross, G. Rossi, E. Sanchez, D. Schlegel, H. Seo, D. Sprayberry, G. Tarlé, R. J. Turner, B. A. Weaver, P. Zarrouk, R. Zhou, H. Zou

A. Carr et al 2026 The Astrophysical Journal 1004 .

Provider: AAS Journals

Caption: Figure 5.

“Hubble diagram” in η, which shows Hubble residuals as a function of redshift. We expect it to be flat in z, and centered on 0 when we use the same fiducial cosmology as was used to generate the catalogs. The inset axes zoom in to η = 0 (gray dashed line); the mean (gray dotted line) is actually offset slightly, as already shown by the gray dotted line in Figure 3.

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