The Integral Field Unit of the Near Infrared Spectrophaph for JWST

Arribas, S.; Ferruit, P.; Jakobsen, P.; Boeker, T.; Bunker, A.; Charlot, S.; Crampton, D.; Franx, M.; García-Marín, M.; Maiolino, R.; Marchi, G. De; Moseley, H.; Rauscher, B.; Regan, M.; Rix, H.-W.; Valenti, J.
Bibliographical reference

Science Perspectives for 3D Spectroscopy. Proceedings of the ESO Workshop held in Garching, Germany, 10-14 October 2005. ESO astrophysics symposia. Edited by M. Kissler-Patig, J.R. Walsh, and M.M. Roth. Series Editor: Bruno Leibundgut, ESO. ISBN 978-3-540-73490-1. Berlin: Springer, 2007, p.21

Advertised on:
0
2007
Number of authors
16
IAC number of authors
0
Citations
1
Refereed citations
1
Description
The Near Infrared Spectrograph (NIRSpec) on board of the James Webb Space Telescope (JWST) will be equipped with an Integral Field Unit (IFU) which will allow the two-dimensional spectral characterization of astronomical objects with unprecedented depths, especially in the 2-5 micron wavelength range. In particular, NIRSpec-IFU observations of high-z galaxy populations will permit the capture of their often complex two-dimensional physical and kinematical structure, a pre-requisite for carrying out a number of studies. These types of observations will also help to understand possible observational biases of large 1D (i.e. slit) surveys to be carried out in multi-object mode. Here we describe the main characteristics of the NIRSpec-IFU, as well as its expected sensitivity and performance for observations of high-z galaxy populations.