Example blow-up Herschel images at 70/160/250/350/500 μm and high-resolution column density map for a (bound) prestellar core. Ellipses represent the estimated major and minor FWHM sizes of the core at each wavelength; they are shown as solid or dashed curves depending on whether the core is significantly detected or not, respectively, at a particular wavelength. See Table A.2 for the physical radius of the core and other derived properties. An angular scale of 30″ (i.e., ~ 0.038 pc at d = 260 pc) is shown at the bottom right. North is up, east is left. Similar image cutouts are provided on http://gouldbelt-herschel.cea.fr/archives for all selected starless cores.