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DETAILED ABUNDANCE MEASUREMENTS OUT TO LARGE RADII WILL IMPROVE OUR KNOWLEDGE OF THE METAL ENRICHMENT IN GALAXY GROUPS AND CLUSTERS BY DIRECTLY EXPLORING MOST OF THE SYSTEMS VOLUME. WHILE IN RECENT YEARS METALLICITY MEASUREMENTS OUT TO R500 HAVE BEEN DONE FOR A SIZABLE NUMBER OF GALAXY CLUSTERS WE ARE STILL MISSING SYSTEMATIC MEASUREMENTS AT SUCH RADII FOR GALAXY GROUPS. WE PROPOSE TO OBSERVE A PILOT SAMPLE OF GALAXY GROUPS TO DERIVE THE ABUNDANCE PROFILES OUT TO R500. THE REQUESTED OBSERVATIONS WILL ALLOW US TO INVESTIGATE WHETHER OR NOT THE LOWER METALLICITY OBSERVED FOR GALAXY GROUPS WITHIN 0.7R500 PERSISTS AT LARGE RADII OR IF THE MISSING METALS HAVE BEEN EJECTED TO THE OUTER REGIONS.

$71,546FY2020National Aeronautics and Space AdministrationNASA

Smithsonian Institution, Washington DC

Investigators

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