Table of Contents
Spectrographical observations are taken out with the DADOS or the BACHES spectrograph, both manufactured by Baader Planetarium.
The DADOS spectrograph
The basic data are partly taken from the Baader webpage.
| Grating | Dispersion at 550nm | Spectral resolution $\frac{\lambda}{\Delta\lambda}$ at 550nm with the 3 slit widths | Covered Spectral range in nm | |||||
|---|---|---|---|---|---|---|---|---|
| Line/mm | nm/mm | nm/9µm Pixel | 25µm | 35µm | 50µm | ST-7 | ST-8 | STF-8300 |
| 200 | 47,61 | 0,428 | 543 | 388 | 272 | 328 | 656 | 855 |
| 900 | 12,67 | 0,114 | 3818 | 2727 | 1909 | 87 | 174 | 227 |
Representative spectra that where taken with our DADOS spectrograph can be found here.
Manual
A User's Guide, next to other helpful documents, can be found here.
The BACHES echelle spectrograph
The new echelle spectrograph from Baader Panetarium, which has been developed by the Max-Planck-Institut for extraterrestrial physics, has the following properties:
- Resolution: $R = \frac{\lambda}{\Delta \lambda} = 14,000-20,000$
- Wavelength range: $\lambda$ = 400-700 nm (without gaps)
- maximum efficiency: 31%
Manual
The Baader Product Page provides helpfull documents like the manual or the calibration instructions.