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 report 4 new pulsars discovered in the core-collapsed globular cluster(GC) NGC 6624 by the TRAPUM Large Survey Project with the MeerKAT telescope.All of the new pulsars found are isolated. PSR J1823$-$3021I and PSRJ1823$-$3021K are millisecond pulsars with period of respectively 4.319 ms and2.768 ms. PSR J1823$-$3021J is mildly recycled with a period of 20.899 ms, andPSR J1823$-$3022 is a long period pulsar with a period of 2.497 s. The pulsarsJ1823$-$3021I, J1823$-$3021J, and J1823$-$3021K have position and dispersionmeasure (DM) compatible with being members of the GC and are thereforeassociated with NGC 6624. Pulsar J1823$-$3022 is the only pulsar bright enoughto be re-detected in archival observations of the cluster. This allowed thedetermination of a timing solution that spans over two decades. It is notpossible at the moment to claim the association of pulsar J1823$-$3022 with theGC given the long period and large offset in position ($\sim 3$ arcminutes) andDM (with a fractional difference of 11 percent compared the average of thepulsars in NGC 6624). The discoveries made use of the beamforming capability ofthe TRAPUM backend to generate multiple beams in the same field of view whichallows sensitive searches to be performed over a few half-light radii from thecluster center and can simultaneously localise the discoveries. The discoveriesreflect the properties expected for pulsars in core-collapsed GCs.

Four pulsar discoveries in NGC 6624 by TRAPUM using MeerKAT