# A pilot search for extragalactic OH absorption with FAST

@article{Zheng2020APS,
title={A pilot search for extragalactic OH absorption with FAST},
author={Zheng Zheng and Di Li and Elaine M. Sadler and James R. Allison and Ning-yu Tang},
journal={Monthly Notices of the Royal Astronomical Society},
year={2020}
}
• Published 1 October 2020
• Physics
• Monthly Notices of the Royal Astronomical Society
OH absorption is currently the only viable way to detect OH molecules in non-masing galaxies at cosmological distances. There have been only six such detections at z > 0.05 to date and so it is hard to put a statistically robust constraint on OH column densities in distant galaxies. We carried out a pilot OH absorption survey towards eight associated and one intervening H i 21-cm absorbers using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). We were able to constrain the OH…
4 Citations

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