10 papers
Photometric redshift using the far-infrared SED
Tommy Wiklind
A method for using the sub-millimeter band to determine photometric redshifts of luminous high-z dusty galaxies is presented. It is based on the observation that local ultra-lumino…
Gravitational Lensing at Millimeter Wavelengths
Tommy Wiklind, Danielle Alloin
With today's millimeter and submillimeter instruments observers use gravitational lensing mostly as a tool to boost the sensitivity when observing distant objects. This is evident…
Distortion of the SED of High-z Luminous Infrared Galaxies by Strong Lensing
K. M. Pontoppidan, T. Wiklind
We present a model to estimate the effect of differential magnification on the SED of high-z ULIRGs. It is found that the ratio of the high temperature component to the low tempera…
Time Delay of PKS1830-211 Using Molecular Absorption Lines
T. Wiklind, F. Combes
The use of molecular absorption lines in deriving the timde delay in PKS1830-211 is described, as well as results from a three year monitoring campaign. The time delay and the impl…
Molecular absorption lines at high redshift
Tommy Wiklind, Francoise Combes
The four known molecular absorption line systems at redshifts z0.25--0.89 are discussed. Two of the systems originate in the galaxy hosting the `background' AGN, while in two ca…
Molecular lines in absorption: recent results
F. Combes, T. Wiklind
Some recent results are presented about high redshift molecular absorption lines, namely about chemical abundances of elements, and in particular of water and molecular oxygen. Exc…