Information recovery from overlapping GAIA spectra

Details Information recovery from overlapping GAIA spectra Information recovery from overlapping GAIA spectra

2003-01-13

arxiv.org/abs/astro-ph/0301209v1

Astronomy and Astrophysics

Astrophysics

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

Scientific paper

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.

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