Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....94....1c&link_type=abstract
Astronomy and Astrophysics, vol. 94, no. 1, Jan. 1981, p. 1-11.
Astronomy and Astrophysics
Astrophysics
29
Chemical Composition, Stellar Gravitation, Stellar Magnitude, Stellar Spectra, Stellar Temperature, Sun, Atmospheric Turbulence, Bolometers, H Lines, Stellar Atmospheres, Stellar Evolution
Scientific paper
The physical parameters, effective temperature, gravity, bolometric magnitude, microturbulent velocity, and chemical composition of four stars are analyzed in detail. These stars, HD 1835, HD 76151, HD 78418, and HD 89010, found to be similar to the sun, were observed by the coude spectrograph of the 1.52 m telescope of the Haute Provence Observatory. Four additional stars whose parameters were already determined, and a ninth, HD 44594, the best solar analog studied only photometrically, are also discussed. The under-luminosity of HD 76151 is explained by a high He content; the possibility of its belonging to the Hyades moving group was therefore found unlikely. It is shown that the determination of the energy distribution of solar type stars obtained by Hardorp together with the establishment of Geneva solar photometric boxes is successful in identifying stars having effective temperatures close to that of the sun. None of the stars, however, could be called a real solar twin since none had at the same time the same effective temperature, gravity, bolometric magnitude, metal content, and microturbulence of the sun within observational accuracy.
Bentolila C.
Cayrel de Strobel G.
Hernández Guzmán
Knowles Noah
No associations
LandOfFree
In search of real solar twins 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 In search of real solar twins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In search of real solar twins will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1050819