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

Recent Spitzer observations have revealed a substantial population of z~2ULIRGs with deep silicate absorption (\tau_{9.7}>1). This paper reports a 20cmradio study of such a sample to elucidate their physical nature. We discoverthat a substantial fraction (40%) of deep silicate absorption ULIRGs at z~2 aremoderately radio-loud with L_{1.4GHz}=10^{25}--10^{26}WHz^{-1}. This is instrong contrast with z<1 radio galaxies and radio-loud quasars where none ofthe sources with available IRS spectra have \tau_{9.7}>1. In addition, weobserve radio jets in two of our sources where one has a double lobe structure~200kpc in extent, and another shows a one-sided jet extending ~90kpc from thenucleus. The likely high inclination of the latter, coupled with its deepsilicate absorption, implies the mid-IR obscuration does not share an axis withthe radio jets. These sources are highly obscured quasars, observed in thetransition stage after the birth of the radio source, but before feedbackeffects dispel the ISM and halt the black hole accretion and starburstactivity.

Discovery of Radio Jets in z~2 ULIRGs with Deep 9.7um Silicate Absorption