Correcting second-order contamination in low-resolution spectra

Abstract

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.

accepted for publication in Astronomical Notes (Astronomische Nachrichten)

References in corpus (3)

• The Radial Velocity Experiment (RAVE): first data release
• The Type Ia supernova 2004S, a clone of SN 2001el, and the optimal photometric bands for extinction estimation
• ESC observations of SN 2005cf: II. Optical Spectroscopy and the high velocity features

Cited by in corpus (1)

• Spectroscopy of clusters in the ESO distant cluster survey (EDisCS).II. Redshifts, velocity dispersions, and substructure for clusters in the last 15 fields