English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

This study uses HI image data from the WALLABY pilot survey with the ASKAPtelescope, covering the Hydra cluster out to 2.5$r_{200}$. We present theprojected phase-space distribution of HI-detected galaxies in Hydra, andidentify that nearly two thirds of the galaxies within $1.25r_{200}$ may be inthe early stages of ram pressure stripping. More than half of these may be onlyweakly stripped, with the ratio of strippable HI (i.e., where the galacticrestoring force is lower than the ram pressure in the disk) mass fraction (overtotal HI mass) distributed uniformly below 90%. Consequently, the HI mass isexpected to decrease by only a few 0.1 dex after the currently strippableportion of HI in these systems has been stripped. A more detailed look at thesubset of galaxies that are spatially resolved by WALLABY observations showsthat, while it typically takes less than 200 Myr for ram pressure stripping toremove the currently strippable portion of HI, it may take more than 600 Myr tosignificantly change the total HI mass. Our results provide new clues tounderstanding the different rates of HI depletion and star formation quenchingin cluster galaxies.

WALLABY Pilot Survey: the diversity of ram pressure stripping of the galactic HI gas in the Hydra Cluster