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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

GW190425 is the second of only two binary neutron star (BNS) merger events tobe significantly detected by the LIGO-Virgo- Kagra gravitational wavedetectors. With a detection only in LIGO Livingston, the skymap containing thesource was large and no plausible electromagnetic counterpart was found in realtime searching in 2019. Here we summarise our ATLAS and Pan-STARRS wide-fieldoptical coverage of the skymap beginning within 1 hour and 3 hours respectivelyof the GW190425 merger time. More recently, a potential coincidence betweenGW190425 and a fast radio burst FRB 190425 has been suggested, given theirspatial and temporal coincidence. The smaller sky localisation area of FRB190425 and its dispersion measure have led to the identification of a likelyhost galaxy, UGC 10667 at a distance of 141 +/- 10 Mpc. Our optical imagingcovered the galaxy 6.0 hrs after GW190425 was detected and 3.5 hrs after theFRB 190425. No optical emission was detected and further imaging at +1.2 and+13.2 days also revealed no emission. If the FRB 190425 and GW190425association were real, we highlight our limits on kilonova emission from a BNSmerger in UGC 10667. The model for producing FRB 190425 from a BNS mergerinvolves a supramassive magnetised neutron star spinning down by dipoleemission on the timescale of hours. We show that magnetar enhanced kilonovaemission is ruled out by optical upper limits. The lack of detected opticalemission from a kilonova in UGC 10667 disfavours, but does not disprove, theFRB-GW link for this source.

GW190425: Pan-STARRS and ATLAS coverage of the skymap and limits on optical emission associated with FRB190425