The first ISO ERO: A dusty quasar at z = 1.5

M. Pierre, C. Lidman, R. Hunstead, D. Alloin, M. Casali, C. Cesarsky, P. Chanial, P.-A. Duc, D. Fadda, H. Flores, S. Madden, L. Vigroux
2001 Astronomy and Astrophysics  
We report the discovery of an extremely red object (ERO) in a medium-deep ISOCAM extragalactic survey. The object is also a radio source. Subsequent VLT NIR spectroscopy revealed a prominent Halpha line giving a redshift of 1.5. We present the spectrum and photometric data points and discuss evidence that ISO J1324-2016 is a quasar harbouring a significant amount of very hot dust.
doi:10.1051/0004-6361:20010579 fatcat:un7oomj3q5a2dm2jokr4qqvhiy