This atlas contains a set of spectral templates of galaxies covering the ultraviolet to near-infrared spectral range, i.e. from 0.12 up to 1 micron. The ultraviolet range of the spectral templates has been obtained with the large aperture (10" by 20") and low resolution spectrographs of the IUE satellite. The optical spectra were obtained through a long slit with a 10" width, were a window of 20" long was extracted to mach the IUE aperture.
The spectral templates cover various galaxy morphological types from elliptical to late type spiral. Starburst templates for low (E(B-V < 0.10) to high (0.61 < E(B-V) < 0.70) internal extinction are also available. Several of the starburst galaxies used inthe construction of the starburst templates are classified as irregulars. Thus, although irregular galaxies are no explicitly covered, the starburst templates can be used to cover this morphological type. Details about how the templates have been constructed can be found in Kinney et al. (1996) for the different morphological types, and in Calzetti et al. (1994) for the starbursts.
The flux of the spectral templates has been normalized to a visual magnitude of 12.5 (STMAG system). Details about each individual template can also be found in the header of the STSDAS binary file. The header of a STSDAS file can be read using the tupar task of the IRAF ttools package. STSDAS files can be dumped into an ASCII formatted file using the tdump task of the IRAF ttools package.
Table: List of Templates in the Kinney-Calzetti Atlas File Name Spectral coverage Comments (angstroms) elliptical_template 1235 - 9935 - bulge_template 1235 - 7545 - s0_template 1235 - 9940 - sa_template 1235 - 9940 - sb_template 1235 - 9940 - sc_template 1235 - 7660 - starb1_template 1235 - 9945 starburst with E(B-V) < 0.1 starb2_template 1235 - 9945 starburst with 0.11 < E(B-V) < 0.21 starb3_template 1235 - 9945 starburst with 0.25 < E(B-V) < 0.35 starb4_template 1235 - 9945 starburst with 0.39 < E(B-V) < 0.50 starb5_template 1235 - 9945 starburst with 0.51 < E(B-V) < 0.60 starb6_template 1235 - 9945 starburst with 0.61 < E(B-V) < 0.70 References ---------- Calzetti, D., Kinney, A.L. & Storchi-Bergmann, T. 1994, ApJ 429, 582 Kinney, A.L., Calzetti, D., Bohlin, R.C., McQuade, K., Storchi-Bergmann, T. & Schmitt, H.R. 1996, ApJ August issue (also STScI preprint 1037)