Current detection methods of planetary companions do not allow retrieving their spectral information properties. The method of Differential Interferometry has the potential to complement such information by comparing interferometric observables in various spectral channels. We outline the basic aspects of this method and how it can soon be realised by the Mid-infrared Interferometric instrument (MIDI) at the Very Large Telescope Interferometer (VLTI) observatory. A set of possible candidates for such direct observation has been selected among currently identified planetary companions. Differential Interferometry with MIDI would be complementary to other ground-based programs. The method may also be an alternative for future space-based planetary spectroscopy.
@article{arxiv.astro-ph/0408050,
title = {Direct Detection of Sub-stellar Companions with MIDI},
author = {Peter Schuller and Martin Vannier and Romain Petrov and Bruno Lopez and Christoph Leinert and Thomas Henning and .},
journal= {arXiv preprint arXiv:astro-ph/0408050},
year = {2013}
}
Comments
5 pages, 3 figures; Latex esapub class and packages graphicx, hyperref, and natbib