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Home All issues Volume 691 (November 2024) A&A, 691 (2024) A337 Full HTML
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Table 1

Results from two-parameter analyses of CO power spectrum measurements.

b- and veff-agnostic: b- and veff-informed: b- and veff-agnostic: b- and veff-informed:
Data Aclust (μK2) Pshot/103 (μK2 Mpc3) ⟨T b⟩2 (μK2) Pshot/103 (μK2 Mpc3) ⟨T⟩ (μK) ρH2/108 (M⊙ Mpc−3) ⟨T⟩ (μK) ρH2/108 (M⊙ Mpc−3)
COPSS <630 5.7−3.6+4.2$\[5.7_{-3.6}^{+4.2}\]$ <345 12.1−6.4+7.5$\[12.1_{-6.4}^{+7.5}\]$ <11. <7.4 <9.3 <6.4
COMAP S1 <66 <19 <49 <24 <3.5 <2.4 <3.5 <2.5
COMAP S1+COPSS <69 6.8−3.5+3.8$\[6.8_{-3.5}^{+3.8}\]$ <51 11.9−6.1+6.8$\[11.9_{-6.1}^{+6.8}\]$ <3.5 <2.5 <3.6 <2.5
COMAP S2 <31 <3.7 <23 <4.9 <2.4 <1.6 <2.4 <1.7
COMAP S2+COPSS <30 <4.8 <23 <6.1 <2.3 <1.6 <2.4 <1.7

Notes. We show constraints obtained for clustering amplitude (Aclust or ⟨T b⟩2) and shot noise power (Pshot), assuming any deviation from zero describes CO(1–0) emission at z ~ 3. For comparison, we also show results from using only COPSS data or COMAP data through Season 1; we indicate in bold type the results from using COMAP data through Season 2 (without COPSS data). We quote 68% intervals for Pshot in the “COPSS” and “COMAP S1+COPSS” analyses; otherwise we quote 95% upper limits.

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