Physics – Optics
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21743005a&link_type=abstract
American Astronomical Society, AAS Meeting #217, #430.05; Bulletin of the American Astronomical Society, Vol. 43, 2011
Physics
Optics
Scientific paper
The massive compact objects (`red nuggets') recently discovered at z > 1.5 appear to have disappeared in the local Universe and theoretical models of galaxy evolution are unable to explain where they have gone. The case is dire: either the models are wrong or the observations are being misinterpreted. One promising way forward is to find and study red nuggets at lower redshifts where, for example, extended low-surface brightness envelopes can be observed. I will present results from a pilot program to find and study intermediate-redshift analogs to the high-redshift red nuggets. These new red nuggets are early-type background sources of strong gravitational lens systems (the foreground galaxies are also early-types, so these are early-type/early-type lenses, or EELs), and I exploit the magnification of lensing and adaptive optics imaging to investigate these compact galaxies with approximately 200 pc resolution.
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