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Type Ia Supernova Discoveries at z > 1 from the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution

  • Authors: Adam G. Riess, Louis-Gregory Strolger, John Tonry, Stefano Casertano, Henry C. Ferguson, Bahram Mobasher, Peter Challis, Alexei V. Filippenko, Saurabh Jha, Weidong Li, Ryan Chornock, Robert P. Kirshner, Bruno Leibundgut, Mark Dickinson, Mario Livio, Mauro Giavalisco, Charles C. Steidel, Txitxo Benítez, and Zlatan Tsvetanov

Riess et al. 2004 The Astrophysical Journal 607 665.

  • Provider: AAS Journals

Caption: Fig. 6.

Kinematic SN Ia residual Hubble diagram. Top: SNe Ia from ground‐based discoveries in the gold sample are shown as diamonds; HST‐discovered SNe Ia are shown as filled symbols. Bottom: Weighted averages in fixed redshift bins are given for illustrative purposes only. Data and kinematic models of the expansion history are shown relative to an eternally coasting model, ﹩q( z) =0﹩. Models representing specific kinematic scenarios (e.g., "constant acceleration") are illustrated.

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