Expanding HST observations of intermediate-redshift quasars can deliver the first systematic rest-frame EUV census of QSOs and warm-hot gas in the CGM/IGM as a low-redshift anchor for future UV missions.
The Hidden Mass and Large Spatial Extent of a Poststarburst Galaxy Outflow
2 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
abstract
Outflowing winds of multiphase plasma have been proposed to regulate the buildup of galaxies, but key aspects of these outflows have not been probed with observations. Using ultraviolet absorption spectroscopy, we show that "warm-hot" plasma at 10^{5.5} K contains 10-150 times more mass than the cold gas in a poststarburst galaxy wind. This wind extends to distances >68 kiloparsecs, and at least some portion of it will escape. Moreover, the kinematical correlation of the cold and warm-hot phases indicates that the warm-hot plasma is related to the interaction of the cold matter with a hotter (unseen) phase at >>10^{6} K. Such multiphase winds can remove substantial masses and alter the evolution of poststarburst galaxies.
years
2026 2verdicts
UNVERDICTED 2representative citing papers
HST UV spectroscopy is presented as the unique tool for probing multiphase gas at the disk-CGM interface to understand how galaxies acquire fuel, recycle metals, and drive feedback.
citing papers explorer
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Closing the UV Gap: Rest-frame EUV science from high-redshift QSOs as a legacy-defining capability
Expanding HST observations of intermediate-redshift quasars can deliver the first systematic rest-frame EUV census of QSOs and warm-hot gas in the CGM/IGM as a low-redshift anchor for future UV missions.
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Revealing Cosmic Ecosystems with the Hubble Space Telescope in 2030s and Beyond
HST UV spectroscopy is presented as the unique tool for probing multiphase gas at the disk-CGM interface to understand how galaxies acquire fuel, recycle metals, and drive feedback.