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The Hidden Mass and Large Spatial Extent of a Poststarburst Galaxy Outflow

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arxiv 1111.3982 v1 pith:6Y4LJVAD submitted 2011-11-16 astro-ph.CO

The Hidden Mass and Large Spatial Extent of a Poststarburst Galaxy Outflow

Todd M. Tripp , Joseph D. Meiring , J. Xavier Prochaska , Christopher N. A. Willmer , J. Christopher Howk , Jessica K. Werk , Edward B. Jenkins , David V. Bowen
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Nicolas Lehner Kenneth R. Sembach Christopher Thom Jason Tumlinson
This is my paper
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keywords coldplasmapoststarburstwarm-hotbeengalaxiesgalaxymass
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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.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Closing the UV Gap: Rest-frame EUV science from high-redshift QSOs as a legacy-defining capability

    astro-ph.GA 2026-05 unverdicted novelty 2.0

    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.

  2. Revealing Cosmic Ecosystems with the Hubble Space Telescope in 2030s and Beyond

    astro-ph.IM 2026-06 unverdicted novelty 1.0

    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.