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 the broadband radiation behavior of a kilonova ejecta-pulsar windnebula (PWN) system. In this model, we jointly fit the observations of AT2017gfo in UV-optical-IR bands and the late-time X-ray afterglow of GRB170817A. Our work shows that a PWN powered by the remnant neutron star (NS)post GW170817 event could affect the optical transient AT 2017gfo andre-brighten the late-time X-ray afterglow of GRB 170817A. The PWN radiationwill regulate the trend of future X-ray observations from a flattening to asteep decline until some other sources (e.g., a kilonova afterglow) becomedominant. The restricted ranges of the central NS parameters in this work areconsistent with the previous works based on the observations of AT 2017gfoonly. In addition, the new fitting result indicates that the NS wind is highlymagnetized. We point out that the radio and X-ray emission from a kilonovaejecta-PWN system could be an important electromagnetic feature of binary NSmergers when a long-lived remnant NS is formed. Therefore, observations of akilonova ejecta-PWN system will provide important information to inferring thenature of a merger remnant.

Broadband Emission from a Kilonova Ejecta-Pulsar Wind Nebula System: Late-Time X-ray Afterglow Rebrightening of GRB 170817A