| Issue |
Ann. Phys. Fr.
Volume 16, Number 4, 1991
|
|
|---|---|---|
| Page(s) | 497 - 506 | |
| DOI | https://doi.org/10.1051/anphys:01991001604049700 | |
| Published online | 01 June 2004 | |
Visible and infrared interferometry before and with the VLT
1
Observatoire de Lyon, CNRS, URA 300, Avenue Charles André, 69561 Saint-Genis-Laval, France
2
Observatoire de Paris-Meudon, DASGAL/AIRI, CNRS, URA 335,5 place J. Janssen, 92195 Meudon Cedex, France
3
Département d'Astrophysique, CNRS, URA 709, Université de Nice-Sophia Antipolis, Parc Valrose, 06034 Nice Cedex, France
After a brief recall of the basic principles of interferometric techniques both at visible and infrared wavelengths, we show from a few selected examples the contribution of these techniques in the field of the late stages of stellar evolution; indeed they provide unique constraints to model e.g.: late type evolved stars like mira variables, protoplanetary nebulae and the supernova SN 1987a, which we discuss. As a conclusion, we emphasize the importance of the interferometric capabilities of the future ESO's Very Large Telescope for such astrophysical programs.
Résumé
Après un bref rappel des principes de base des techniques interférométriques en visible comme en infrarouge, nous illustrons sur quelques exemples la contribution de ces techniques à l'étude des stades ultimes de l'évolution stellaire; elles fournissent en effet des contraintes uniques pour la modélisation, par exemple, des étoiles de type tardif telles que les variables mira, des nébuleuses protoplanétaires et de la supernova SN 1987A, divers cas que nous discutons. En conclusion, nous soulignons l'importance du potentiel interférométrique du futur Très Grand Télescope de l'ESO pour de tels programmes astrophysiques.
PACS: 9575K – Astronomical interferometry / 9580J – Photographic region astronomical observations / 9580G – Infrared astronomical observations / 9870L – Cosmic IR sources / 9720D – Pre main sequence stars / 9720P – Supergiant stars / 9730J – Long period variables Miras and semi regulars / 9840M – Planetary nebulae / 9840J – Interstellar IR sources / 9850E – Galactic structure, content and morphology / 9850M – Local Group of galaxies / 9760B – Supernovae
Key words: astronomical techniques / giant stars / infrared astronomical observations / infrared astronomy / infrared sources astronomical / Large Magellanic Cloud / light interferometry / OH IR stars / planetary nebulae / supergiant stars / supernovae / variable stars / visible astronomical observations / stellar visible interferometry / IR interferometry / late stage stellar evolution / red giant stars / LMC / evolved stars models / red supergiant stars / luminous M type stars / Type II supernova / Sk 69 degrees 202 / OH IR / stellar superwind stages / infrared interferometry / VLT / interferometric techniques / late type evolved stars / mira variables / protoplanetary nebulae / SN 1987A / interferometric capabilities / Very Large Telescope
© EDP Sciences, 1991