Observing in the infrared the obscure growth of black holes and their host gal
Kalliopi DASYRA
CEA/observatoire de Paris
Résumé :
Rapid growth of black holes (BHs) and intense star formation are often
believed to simultaneously take place in the
galaxies that are largely responsible for the cosmic infrared
background. However, the standard techniques of obtaining
host galaxy and BH mass estimates often fail in IR-bright galaxies
because of the high amount/compactness of obscuring
medium in them. I will present galaxy mass estimates from VLT
observations of NIR stellar absorption features, and a
means to obtain BH mass estimates from MIR ionic gas lines that can be
applicable to Spitzer, and future JWST and
SPICA observations. I will also discuss (dis)similarities in the
nature, trigger mechanisms, morphologies, IR dust features,
and warm molecular gas content of dust obscured galaxies as a function
of z, as determined from HST and Spitzer data.
