Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...211..324c&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 211, no. 2, March 1989, p. 324-340.
Astronomy and Astrophysics
Astrophysics
40
Astronomical Spectroscopy, Dwarf Stars, Stellar Composition, Stellar Spectra, Sun, Abundance, Analogs, Astrometry, Astronomical Photometry, Spectrum Analysis, Stellar Activity, Stellar Atmospheres
Scientific paper
Four photometric solar analogs have been observed on high resolution, high signal/noise spectroscopic Reticon material in order to find real solar twins. Three stars came from a list of solar analogs of Hardorp and one has been pointed out to the authors by Mihalas. Their spectra have been analyzed in detail and the resulting atmospheric parameters have been compared to those of the sun. In spite of a slight but significant difference in metal content, HD44594 seems to be the most solar like dwarf found so far in the neighborhood of the sun and can be used as solar-standard in precise spectrophotometric work. The more advanced spectral type of HD44594 than that of the sun and the high (B-V) color index could be explained by its slightly enhanced metallicity.
Bentolila C.
Cayrel de Strobel G.
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