A combined telescope and spectrograph of high efficiency
Abstract
A highly efficient telescope and spectrograph design is discussed. At an aperture having an equivalent diameter of 7.3 inches, the instrument has approximately the same limiting magnitude as a conventional 60-inch telescope and spectrograph of the same dispersion. The slitless character of the instrument may lead to overlapping spectra in some cases and also cause degradation of the resolution in poor seeing (greater than 4 arc sec).
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- April 1984
- DOI:
- 10.1086/131342
- Bibcode:
- 1984PASP...96..325F
- Keywords:
-
- Astronomical Spectroscopy;
- Spectrographs;
- Telescopes;
- Charge Coupled Devices;
- Efficiency;
- Gratings (Spectra);
- Astronomy