SIMBAD references

1999BaltA...8...73M - Baltic Astronomy, 8, 73-96 (1999/February-0)

GAIA spectroscopy : proposing the 8500-8750 A region and evaluating the performances.


Abstract (from CDS):

We propose the Gaia spectroscopic observations to be performed over the wavelength interval 8500-8750 Å, with an optimal dispersion of 0.25 Å/pix (or 1000 pixels budget per spectrum) and a 2 pixel PSF. In this paper, on the base of extensive observations as well as synthetic spectra and simulations, we review the spectroscopic performances expected for Gaia: radial and rotational velocities, spectral classification, detection of mass-loss and spectral peculiarities, chemical abundance analysis and reddening estimates from the 8620 Å diffuse interstellar band. Lower dispersion spectra (corresponding to smaller pixel budgets) are considered too.

Abstract Copyright:

Journal keyword(s): stars: infrared spectra, synthetic spectra, spectral classification, abundances - ISM: extinction, interstellar bands - orbiting observatories: Gaia

Simbad objects: 35

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:1999BaltA...8...73M and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact