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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We present a wide field study of the Globular Clusters/Low Mass X-ray Binary(LMXB) connection in the giant elliptical NGC1399. The large FOV of theACS/WFC, combined with the HST and Chandra high resolution, allow us toconstrain the LMXB formation scenarios in elliptical galaxies. We confirm thatNGC1399 has the highest LMXB fraction in GCs of all nearby elliptical galaxiesstudied so far, even though the exact value depends on galactocentric distancedue to the interplay of a differential GC vs galaxy light distribution and theGC color dependence. In fact LMXBs are preferentially hosted by bright, red GCsout to $>5 R_{eff}$ of the galaxy light. The finding that GC hosting LMXBsfollow the radial distribution of their parent GC population, argues againstthe hypothesis that the external dynamical influence of the galaxy affects LMXBformation in GCs. On the other hand field LMXBs closely match the host galaxylight, thus indicating that they are originally formed in situ and not insideGCs. We measure GC structural parameters, finding that the LMXB formationlikelihood is influenced independently by mass, metallicity and GCs structuralparameters. In particular the GC central density plays a major role inpredicting which GC host accreting binaries. Finally our analysis shows thatLMXBs in GCs are marginally brighter than those in the field, and in particularthe only color-confirmed GC with $L_X>10^{39}$ erg s$^{-1}$ shows novariability, which may indicate a superposition of multiple LMXBs in thesesystems.

Probing the GC-LMXB connection in NGC 1399: a wide-field study with HST and Chandra