Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...120..263f&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 120, no. 2, April 1983, p. 263-268.
Astronomy and Astrophysics
Astrophysics
23
Diameters, Interferometry, Red Giant Stars, Stellar Spectra, Stellar Temperature, Infrared Spectra, Interstellar Extinction, Lunar Occultation, Stellar Atmospheres, Visibility
Scientific paper
The authors report angular diameter measurements of α Ari, β Gem, β UMi, γ Dra, and δ Dra, performed from November 1980 to January 1982, using the two-telescope stellar interferometer (I2T) at the CERGA. To determine the diameter for the equivalent uniform disk, the method is inspired by that of Michelson: it is based on a visual detection of very low contrast fringes for the largest possible baseline. The diameter of α Lyr measured by I2T confirms the measurements by intensity interferometry. From 8 red giant angular diameters and from the computation of the bolometric fluxes of those stars, the authors determine effective temperatures. They obtain a good agreement with the Teff-(V-K) relation, established from lunar occultation diameters and infrared photometry. The authors generally find diameters smaller than from indirect of theoretical methods.
Bonneau Damien
Faucherre Michel
Koechlin Laurent
Vakili Farrokh
No associations
LandOfFree
Stellar interferometry - Diameters and effective temperatures of five giant stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Stellar interferometry - Diameters and effective temperatures of five giant stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stellar interferometry - Diameters and effective temperatures of five giant stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1233030