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

We re-analyse a combined 198 ks Chandra observation of NGC4696, the brightestgalaxy of the Centaurus cluster. We extract temperature and metallicityprofiles from the data, and we confirm the presence of a sharp drop in ironabundance, from ~1.8 Zsolar to ~0.4 Zsolar, within the central 5 kpc of thecluster. We estimate that this abundance drop corresponds to a total "missing"iron mass of 1.4e06 Msolar. We propose that part of this missing iron is lockedup in cool (~19 K) far-IR emitting dust, as found by Spitzer and Herschelobservations. This can occur if the iron injected by stellar mass loss in thecentral region is in grains, which remain in that form as the injected dustycold gas mixes and joins the cold dusty filamentary nebula observed within thesame region. The bubbling feedback process observed in the cluster core thendrags filaments outward and dumps them at 10-20 kpc radius, where themetallicity is high.

Searching for the missing iron in the core of the Centaurus cluster