.. _SN2012aw: ************************************** Swift UVOT Spectra of SN2012AW ************************************** Swift followed the development of the SN2012aw spectra. The spectra show the increasing absorption due to metals in the UV over time. .. figure:: spectra.offset.linear.png :width: 720px The *Swift* UVOT spectra There are two processes that affect the spectra: effective temperature of the photosphere and ionisation/excitation processes. Dividing out the continuum emission of the blackbody radiation of the photosphere clarifies the development of absorption of the radiation field over time. .. figure:: normalised_spectra.png :width: 640px *Swift* UVOT spectra normalised by the continuum of the Blackbody photospheric emission. More details and analysis are being published: - `the exceptionally long plateaux in the UV emission. `_