Rybak, Matus and Lemsom, L. and Lundgren, A. and Zavala, J. and Hodge, J. A. and de Breuck, C. and Casey, C. M. and Decarli, R. and Torstensson, K. and Wardlow, J. L. and van der Werf, P. P. (2023) Bright Beacons?:ALMA Non-detection of a Supposedly Bright [O i ] 63 μ m Line in a Redshift-6 Dusty Galaxy. Research Notes of the AAS, 7 (9). ISSN 2515-5172
Full text not available from this repository.Abstract
We report a non-detection of the [O i] 63 μm emission line from the z = 6.03 galaxy G09.83808 using ALMA Band 9 observations, refuting the previously claimed detection with APEX by Rybak et al.; the new upper limit on the [O i] 63 μm flux is almost 20-times lower. [O i] 63 μm line could be a powerful tracer of neutral gas in the Epoch of Reionization: yet our null result shows that detecting [O i] 63 μm from z ≥ 6 galaxies is more challenging than previously hypothesized.