Search Publications
A new view on the ISM of galaxies: Far-infrared and submillimetre spectroscopy with Herschel
Wilson, Christine D.; Baes, Maarten; Madden, Suzanne C. +2 more
The FIR/submm window is amongst the least explored spectral regions of the electromagnetic spectrum. It is, however, a key to study the general properties of the interstellar medium of galaxies, as it contains important spectral line diagnostics from the neutral, ionized and molecular ISM. The Herschel Space Observatory, successfully launched on 1…
Unveiling hidden AGN by IR observations
Haas, Martin
AGN can be dust-hidden by two ways and this talk considers how to unveil them in the infrared: firstly, the powerful 3CR radio galaxies, i.e., type-2 AGN which suffer from anisotropic obscuration of the nuclear region by the dust torus, and secondly, type-1 quasars, which seem to be isotropically reddened by dust, so that they escape detection via…
Dust production in supernovae
Dunne, L.; Eales, S.; Ivison, R. +2 more
The question `Are supernovae important sources of dust?' is a contentious one. Condensation theory and observations of dust at very high redshifts suggests that they should be, since only massive stars evolve quickly enough to produce the large quantities of dust seen at such early times in the Universe. However, observations with IRAS and ISO hav…
Optical and infrared observations of radioactive elements in supernovae
Sollerman, Jesper
At late phases the powering of supernova light curves is often provided by the decay of radioactive elements synthesized in the explosions. This is unambiguously revealed when the light curve decline follows the half-life time of the decaying elements, and the bolometric luminosity then directly provides the mass of ejected radioactive material. I…
Effects of massive star formation on the ISM of dwarf galaxies
Madden, Suzanne C.
We are studying star formation effects on the properties of the ISM in low metallicity environments using mid-infrared (MIR) and far-infrared (FIR) observations of starbursting dwarf galaxies taken with the Infrared Space Observatory (ISO) and the Kuiper Airborne Observatory (KAO). Effects of the hard pervasive radiation field on the gas and dust …