Image Details

Choose export citation format:

Exploring Reionization-era Quasars. III. Discovery of 16 Quasars at 6.4 ≲ z ≲ 6.9 with DESI Legacy Imaging Surveys and the UKIRT Hemisphere Survey and Quasar Luminosity Function at z ∼ 6.7

  • Authors: Feige Wang, Jinyi Yang, Xiaohui Fan, Xue-Bing Wu, Minghao Yue, Jiang-Tao Li, Fuyan Bian, Linhua Jiang, Eduardo Bañados, Jan-Torge Schindler, Joseph R. Findlay, Frederick B. Davies, Roberto Decarli, Emanuele P. Farina, Richard Green, Joseph F. Hennawi, Yun-Hsin Huang, Chiara Mazzuccheli, Ian D. McGreer, Bram Venemans, Fabian Walter, Simon Dye, Brad W. Lyke, Adam D. Myers, and Evan Haze Nunez

2019 The Astrophysical Journal 884 30.

  • Provider: AAS Journals

Caption: Figure 13.

Evolution of the comoving production rate of ionizing photons. The filled and open circles are production rates of ionizing photons at z ∼ 6.7 based on our single power-law QLF and double power-law QLF, respectively. Note that the open circle was shifted by 0.05 on the x-axis for clarity. The magenta open squares are the quasar ionizing photon production rates at lower redshift calculated based on our recalculations of quasar comoving emissivity from Khaire & Srianand (2015). The blue filled diamonds and triangles denote the required photon production rate inferred from measurements of the mean transmitted Lyα flux by Becker & Bolton (2013) and D’Aloisio et al. (2018), respectively. The blue solid line represents the required rate inferred from measurements of the mean transmitted Lyα flux from Meiksin (2005). The dashed–dotted and dashed lines are the required photon rate density to balance hydrogen recombination by assuming C = 2 and C = 3 (Madau et al. 1999), respectively.

Other Images in This Article

Show More

Copyright and Terms & Conditions

Additional terms of reuse