Figure 7 from Toward Determining the Number of Observable Supermassive Black Hole Shadows

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Toward Determining the Number of Observable Supermassive Black Hole Shadows

Authors: Dominic W. Pesce, Daniel C. M. Palumbo, Ramesh Narayan, Lindy Blackburn, Sheperd S. Doeleman, Michael D. Johnson, Chung-Pei Ma, Neil M. Nagar, Priyamvada Natarajan, and Angelo Ricarte

2021 The Astrophysical Journal 923 260.

Provider: AAS Journals

Caption: Figure 7.

Similar to the bottom panel of Figure 4, but now showing the number of shadow-resolved, optically thin SMBHs that could be observed at 230 GHz by an interferometric baseline with flux density sensitivity σ_ν and angular resolution θ_r across the entire sky. The drawn contours mark the same source count values as those in Figure 4. The diagonal dashed cyan line marks a constant brightness temperature of 10¹⁰ K.

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