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 study mass functions of globular clusters derived from HST/ACS images ofthe early-type merger remnant galaxy NGC 1316 which hosts a significantpopulation of metal-rich globular clusters of intermediate age (~3 Gyr). Forthe old, metal-poor (`blue') clusters, the peak mass of the mass function M_pincreases with internal half-mass density rho_h as (M_p proportional torho_h^0.44) whereas it stays approximately constant with galactocentricdistance R_gal. The mass functions of these clusters are consistent with asimple scenario in which they formed with a Schechter initial mass function andevolved subsequently by internal two-body relaxation. For the intermediate-agepopulation of metal-rich ("red") clusters, the faint end of the previouslyreported power-law luminosity function of the clusters with R_gal > 9 kpc isdue to many of those clusters having radii larger than the theoretical maximumvalue imposed by the tidal field of NGC 1316 at their R_gal. This rendersdisruption by two-body relaxation ineffective. Only a few such diffuse clustersare found in the inner regions of NGC 1316. Completeness tests indicate thatthis is a physical effect. Using comparisons with star clusters in othergalaxies and cluster disruption calculations using published models, wehypothesize that most red clusters in the low-rho_h tail of the initialdistribution have already been destroyed in the inner regions of NGC 1316 bytidal shocking, and that several remaining low-rho_h clusters will evolvedynamically to become similar to "faint fuzzies" that exist in severallenticular galaxies. Finally, we discuss the nature of diffuse red clusters inearly-type galaxies.

astrophysical journal/the astrophysical journal

Sizes, Half-Mass Densities, and Mass Functions of Star Clusters in the  Merger Remnant NGC 1316: Clues to the Fate of Second-Generation Globular  Clusters