An empirical method for correcting low-resolution astronomical spectra for second-order contamination is presented. The method was developed for correcting spectra obtained with grism #4 of the ALFOSC spectrograph at the Nordic Optical Telescope and the performance is demonstrated on spectra of two nearby bright Type Ia supernovae.
- Pub Date:
- November 2007
- methods: data analysis;
- supernovae: individual: (SN 2005cf;
- SN 2005hk);
- techniques: spectroscopic;
- accepted for publication in Astronomical Notes (Astronomische Nachrichten)