Multi-wavelength probes of distant lensed galaxies
Abstract
I summarise recent results on multi-wavelength properties of distant lensed galaxies, with a particular focus on Herschel. Submm surveys have already resulted in a breakthrough discovery of an extremely efficient selection technique for strong gravitational lenses. Benefitting from the gravitational magnification boost, blind mm-wave redshifts have been demonstrated on IRAM, SMA and GBT, and follow-up emission line detections have been made of water, [OIII], [CII] and other species, revealing the PDR/XDR/CRDR conditions. I also discuss HST imaging of submm lenses, lensed galaxy reconstruction, the prospects for ALMA and e-Merlin and the effects of differential magnification. Many emission line diagnostics are relatively unaffected by differential magnification, but SED-based estimates of bolometric fractions in lensed infrared galaxies are so unreliable as to be useless, unless a lens mass model is available to correct for differential amplification.
Keywords
Cite
@article{arxiv.1112.0323,
title = {Multi-wavelength probes of distant lensed galaxies},
author = {Stephen Serjeant},
journal= {arXiv preprint arXiv:1112.0323},
year = {2015}
}
Comments
Invited review for IAU symposium 284, The Spectral Energy Distribution of Galaxies (eds. RJ Tuffs & CC Popescu). 7 pages, 3 figures. Original slides available at http://www.mpi-hd.mpg.de/sed2011/pages/program.php