p3d: a general data-reduction tool for fiber-fed integral-field spectrographs

Details p3d: a general data-reduction tool for fiber-fed integral-field spectrographs p3d: a general data-reduction tool for fiber-fed integral-field spectrographs

2010-02-23

arxiv.org/abs/1002.4406v1

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

18 pages, 15 figures, 3 tables, accepted for publication in A&A

Scientific paper

The reduction of integral-field spectrograph (IFS) data is demanding work. Many repetitive operations are required in order to convert raw data into, typically a large number of, spectra. This effort can be markedly simplified through the use of a tool or pipeline, which is designed to complete many of the repetitive operations without human interaction. Here we present our semi-automatic data-reduction tool p3d that is designed to be used with fiber-fed IFSs. Important components of p3d include a novel algorithm for automatic finding and tracing of spectra on the detector, and two methods of optimal spectrum extraction in addition to standard aperture extraction. p3d also provides tools to combine several images, perform wavelength calibration and flat field data. p3d is at the moment configured for four IFSs. In order to evaluate its performance we have tested the different components of the tool. For these tests we used both simulated and observational data. We demonstrate that for three of the IFSs a correction for so-called cross-talk due to overlapping spectra on the detector is required. Without such a correction spectra will be inaccurate, in particular if there is a significant intensity gradient across the object. Our tests showed that p3d is able to produce accurate results. p3d is a highly general and freely available tool. It is easily extended to include improved algorithms, new visualization tools and support for additional instruments. The program code can be downloaded from the p3d-project web site http://p3d.sourceforge.net

Affiliated with

Also associated with

No associations

Rating

p3d: a general data-reduction tool for fiber-fed integral-field spectrographs does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with p3d: a general data-reduction tool for fiber-fed integral-field spectrographs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and p3d: a general data-reduction tool for fiber-fed integral-field spectrographs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-260019