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

We present NuSTAR observations of the bright Seyfert 2 galaxy NGC 2110obtained in 2012, when the source was at the highest flux level ever observed,and in 2013, when the source was at a more typical flux level. We includearchival observations from other X-ray satellites, namely XMM-Newton, Suzaku,BeppoSAX, Chandra and Swift. Simultaneous NuSTAR and Swift broad band spectra(in the 3-80 keV range) indicate a cutoff energy $E_{\rm c}>210$ keV, with nodetectable contribution from Compton reflection. NGC 2110 is one of the veryfew sources where no evidence for distant Compton thick scattering is foundand, by using temporal information collected over more than a decade, weinvestigate variations of the iron K$\alpha$ line on time scales of years. TheFe K$\alpha$ line is likely the sum of two components: one constant(originating from distant Compton-thick material) and the other one variableand linearly correlated with the source flux (possibly arising fromCompton-thin material much closer to the black hole).

The Seyfert 2 galaxy NGC 2110: hard X-ray emission observed by NuSTAR and variability of the iron K$\alpha$ line