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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 8.

Combined TF+FP (PV) log-distance ratio Hubble diagram with Pantheon+ SNe Ia. The DESI PV log-distance ratios (pink circles, squares) have been shifted to the SN Ia (blue circles, triangles) zero-point. The binned, uncorrected DESI η (gray squares) are displayed for comparison. The shaded region (z  <  0.01) was excluded from the zero-point fit because the calibrators and DESI sample show disagreement.

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