The page contains figures and short movies on the results of the Cold Cores project.
Credits: ESA, Planck Collaboration and the team for the Cold Cores project on the Planck and Herschel satellites.
- The all-sky distribution of the detected cold cores/clumps (Planck Collaboration 2011).
The colours blue-yellow-red show the density of the Planck detected cold cores (number of cores per unit area). As the background (colours black-red-yellow) is shown the 100µm dust emission measured by the IRAS satellite. Most cores are located in the plane of the Milky Way but some are found even at high galactic latitudes. In this Mollweide projection of the sky the centre of the Milky Way is at the centre of the image and the plane of the Galaxy runs horizontally across the image.
- 3D distribution of the Planck detected cold cores:
Avi video (4MB) of C3PO sources and the same as a larger version (8MB)
Avi video (4MB) of ECC sources only
The video shows the distribution of the detected cores in relation to the Milky Way and the Sun (the yellow sphere). The cold cloud cores are drawn as spheres whose colours correspond to the temperature. Blue sources are colder and red warmer (closer to 14K). The first animation is based on a preliminary source catalog and includes only sources for which the distance from us has been estimated. The second animation is restricted to sources in the Early Cold Cores (ECC) catalogue. The core sizes are not to scale. (Animation by M. Juvela)
- Sub-millimetre maps of four Galactic cold cores/clumps: Avi video (3.1MB)
The video starts with the 100µm all-sky map of dust emission on which are marked the positions of the Cold Core fields that were observed with the Herschel satellite before 1.1.2011. The animation zooms into four of the fields, showing first the Planck maps (dust emission at 350µm) with a transition to Herschel maps of the 250µm dust emission. The animation demonstrates the varied morphology of the detected cold clouds and the significant amount of small scale structure that is revealed by the higher resolution Herschel data. (Animation by M. Juvela)
- Submillimetre maps of the first 71 fields that were observed by April 2011. Background is the all-sky 100µm IRAS satellite dust emission map on which are marked the positions of all 109 fields that are to be observed. The animation shows, for each observed field, the maps of emission at the wavelength of 250µm. Avi video (16MB)
The size of the files has been reduced for the web. If you are interested in higher resolution versions, please contact mika.juvela/at/helsinki.fi.