Paper Image

FAST reveals diffuse gas surrounding M51

Published on:

7 February 2023

Primary Category:

Astrophysics of Galaxies

Paper Authors:

Haiyang Yu,

Ming Zhu,

Jin-Long Xu,

Mei Ai,

Peng Jiang,

Yanbin Yang


Key Details

FAST's sensitivity reveals faint, diffuse gas surrounding M51

Image shows long Southeast tail, new Southwest plume, Northwest plume

Several tidal clouds detected, unrepresented in simulations

Probable gas associated with M51's companion galaxy

New structures will inform future models of M51's interaction

AI generated summary

FAST reveals diffuse gas surrounding M51

Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), researchers obtained a high sensitivity neutral hydrogen (HI) image of the interacting galaxy pair M51. The image reveals previously unseen extended tidal features surrounding M51, including tails, plumes and clouds. These novel structures provide new insights into the interaction history and evolution of this iconic system.

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