Hydrogen Gas Halo (IMAGE)

University of Texas at Austin

Hydrogen Gas Halo

Caption

An enormous halo of hydrogen gas found in Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) data and superimposed over its location as seen in deep imaging from the James Webb Space Telescope (JWST). Present 11.3 billion years ago, this system glows from the combined light of many galaxies within it, with the brightest region represented in red. Using data from HETDEX, astronomers have increased the known number of these haloes by more than a factor of ten - from roughly 3,000 to over 33,000.

Credit

Credit: Erin Mentuch Cooper (HETDEX), JWST image: NASA, ESA, CSA, STScI.

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License

CC BY

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