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Information recovery from overlapping GAIA spectra

Astrophysics 2007-05-23 v1
Authors: Tomaz Zwitter
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Abstract

The RVS instrument aboard GAIA is a slitless spectrograph, so some spectral tracing overlap is inevitable. We show that this background can be accurately modeled and subtracted. Radial velocity accuracy is not degraded significantly unless the star density is higher than the value typical for the Galactic plane.

Keywords

gaia astrometry radial velocity exoplanet detection solar instrument calibration

Cite

@article{arxiv.astro-ph/0301209,
  title  = {Information recovery from overlapping GAIA spectra},
  author = {Tomaz Zwitter},
  journal= {arXiv preprint arXiv:astro-ph/0301209},
  year   = {2007}
}

Comments

4 pages, 2 figures; to be published in GAIA spectroscopy, Science and Technology, ASP Conference Series, U.Munari (ed.)

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