Publications (4)
Mid-infrared spectroscopy of high-redshift 3CRR sources
C. Leipski, M. Haas, S. P. Willner +9
Using the Spitzer Space Telescope, we have obtained rest frame 9-16mu spectra of 11 quasars and 9 radio galaxies from the 3CRR catalog at redshifts 1.0<z<1.4. This complete flux-li…
Near- and mid-infrared photometry of high-redshift 3CR sources
M. Haas, S. V. P. Willner, F. Heymann +5
Using the Spitzer Space Telescope, we have obtained 3.6--24 micron photometry of 38 radio galaxies and 24 quasars from the 3CR catalog at redshift 1<z<2.5. This 178 MHz-selected sa…
Paradigmatic examples for testing models of optical light polarization by spheroidal dust
C. Peest, R. Siebenmorgen, F. Heymann +2
We present a general framework on how the polarization of radiation due to scattering, dichroic extinction, and birefringence of aligned spheroidal dust grains can be implemented a…
A near-infrared survey of the entire R Corona Australis cloud
M. Haas, F. Heymann, I. Domke +3
To understand low- to intermediate-mass star-formation in the nearby R CrA molecular cloud, we try to identify the stellar content that is accessible with near-infrared observation…