Speckle interferometric measurements of binary stars. II

Details Speckle interferometric measurements of binary stars. II Speckle interferometric measurements of binary stars. II

Nov 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...225..932m&link_type=abstract

Astrophysical Journal, Part 1, vol. 225, Nov. 1, 1978, p. 932-938.

Astronomy and Astrophysics

Astrophysics

45

Binary Stars, Instrument Errors, Interferometry, Orbital Mechanics, Speckle Patterns, Data Reduction, Error Analysis, Stellar Spectrophotometry, Tables (Data)

Scientific paper

Results are presented for 219 observations of 155 binary systems performed by means of speckle interferometry. The measured separations range from 0.033 to 3.25 arcsec with a mean of 0.38 arcsec and 65 observations of separation less than 0.12 arcsec. Directly resolved systems include HR 1129, HR 2304, 53 Aur, Beta Sco CE, HR 6697, 17 Sgr, 74 Aqr, Omicron And, 94 Aqr Aa, and Psi And. Further observations are reported for the 'speckle binaries' 12 Per, 51 Tau, Eta Ori, 19 Leo, Eta Vir Aa, Theta Vir, Beta CrB, Delta Sco, Sigma Her, Chi Dra, Delta Sge, Beta Cep Aa, and Xi Cep Aa, as well as for the interferometric binaries Alpha Aur and Alpha Del Aa. Orbit residuals are determined from available orbits and used to check for systematic errors; it is concluded that there are no serious systematic errors present in the observations reported.

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