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

The Type IIb supernova (SN) 2011dh exploded in the nearby galaxy M51 (the Whirlpool galaxy) and provides us with one of the best laboratories to study early high‐energy emission from SNe. We give here a comprehensive view of the X‐ray properties of SN 2011dh from the analyses of two pointed  XMM–Newton  early observations as well as the full  Swift  X‐ray Telescope (XRT) data set (163 ks). Due to the high  XMM–Newton  throughput, we were able to satisfactorily fit the X‐ray spectrum with two hot diffuse gas components including an additional absorption component to our Galaxy. A power‐law model provided a worse description of the data. In addition, the early  Swift  XRT light curve hints of a flux excess at early times (≲3 d), consistent with the adiabatic cooling of stellar’s photosphere a few days after the shock breakout.

XMM–Newton and Swift observations of the Type IIb supernova 2011dh in Messier 51