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.