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Browsing by Author "Stevens, Jason A."
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Black hole masses, accretion rates and hot- and cold-mode accretion in radio galaxies at z ~ 1
Fernandes, Cristina A. C.; Jarvis, M.J.; Martínez-Sansigre, Alejo M. S.; Rawlings, Steve G.; Afonso, José M.; Hardcastle, M.J.; Lacy, Mark; Stevens, Jason A.; Vardoulaki, Eleni (2015-02-21)Understanding the evolution of accretion activity is fundamental to our understanding of how galaxies form and evolve over the history of the Universe. We analyse a complete sample of 27 radio galaxies which includes both ... -
A SCUBA-2 survey of FeLoBAL QSOs : Are FeLoBALs in a `transition phase' between ULIRGs and QSOs?
Coppin, Kristen; Stevens, Jason A.; Farrah, Duncan; Geach, James; Alexander, Dave M.; Hickox, Ryan C.; Smith, Daniel; Wardlow, Julie L.; Violino, Giulio (2016-04-01)It is thought that a class of broad absorption line (BAL) QSOs, characterised by Fe absorption features in their UV spectra (called `FeLoBALs'), could mark a transition stage between the end of an obscured starburst event ...