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X-rays from the redshift 7.1 quasar ULAS J1120+0641
M. J. Page, C. Simpson, D. J. Mortlock +4
We present X-ray imaging and spectroscopy of the redshift z=7.084 radio-quiet quasar ULAS J112001.48+064124.3 obtained with Chandra and XMM-Newton. The quasar is detected as a poin…
The SCUBA-2 Cosmology Legacy Survey: demographics of the 450 μm-population
I. G. Roseboom, J. S. Dunlop, M. Cirasuolo +47
We investigate the multi-wavelength properties of a sample of 450-μm selected sources from the SCUBA-2 Cosmology Legacy Survey (S2CLS). A total of 69 sources were identified above…
The rapid assembly of an elliptical galaxy of 400 billion solar masses at a redshift of 2.3
Hai Fu, Asantha Cooray, C. Feruglio +41
Stellar archeology shows that massive elliptical galaxies today formed rapidly about ten billion years ago with star formation rates above several hundreds solar masses per year (M…
AGN in dusty hosts: implications for galaxy evolution
Myrto Symeonidis, J. Kartaltepe, M. Salvato +6
We present strong empirical evidence for a physical connection between the occurrence of a starburst (SB) and a luminous AGN phase. Drawing infrared (IR), X-ray, and optically sele…
Submm-bright QSOs at z~2: signposts of co-evolution at high z
F. J. Carrera, A. K. Ali, M. J. Page +3
We have assembled a sample of 5 X-ray and submm-luminous z~2 QSOs which are therefore both growing their central black holes through accretion and forming stars copiously at a crit…