Abstract
PPak is a new fiber-based integral field unit (IFU) developed at the
Astrophysical Institute of Potsdam and implemented as a module into the
existing Potsdam Multi-Aperture Spectrophotometer (PMAS) spectrograph.
The purpose of PPak is to provide an extended field of view with a large
light-collecting power for each spatial element, as well as an adequate
spectral resolution. The PPak system consists of a fiber bundle with 331
object fibers, 36 sky fibers, and 15 calibration fibers. The object and
sky fibers collect the light from the focal plane behind a focal reducer
lens. The object fibers of PPak, each 2.7" in diameter, provide a
contiguous hexagonal field of view of 74" × 64" on the sky, with a
filling factor of 60%. The operational wavelength range is from 400 to
900 nm. The PPak IFU, together with the PMAS spectrograph, are intended
for the study of extended, low surface brightness objects, offering an
optimization of total light-collecting power and spectral resolution.
This paper describes the instrument design, the assembly, integration,
and tests, the commissioning and operational procedures, and presents
the measured performance at the telescope.
Original language | English |
---|---|
Pages (from-to) | 129-145 |
Journal | Publications of the Astronomical Society of the Pacific |
Volume | 118 |
Issue number | 839 |
DOIs | |
Publication status | Published - 1-Jan-2006 |
Keywords
- Instrumentation: Spectrographs
- Techniques: Photometric
- Techniques: Spectroscopic
- TELESCOPE BENCH SPECTROGRAPH
- DESIGN
- SPECTROSCOPY
- MANUFACTURE
- PERFORMANCE
- MODULE
- SPARSEPAK
- VIMOS
- E3D