J/AJ/106/1639 J/AJ/106/1639 ICCD speckle observations of binary stars. X. H A Mcalister B D Mason W I Hartkopf M M Shara Astron. J. 106 1639 1993 1993AJ....106.1639M Interferometry Stars, double and multiple Speckle interferometric observations from the Canada-France-Hawaii 3.6 m and Cerro Tololo 4 m telescopes are reported for 1123 stars selected from the Yale Bright Star Catalogue in a continuing effort to detect new binaries among the bright stars. Thirty-two previously unresolved binaries have been detected, including companions to Xi UMa and 15 S Mon. Measures of 107 previously resolved systems, many of which resulted from earlier speckle observations, are also presented.

WDS Epoch 2000.0 coordinates used as designator in the Washington Double Star Catalogue maintained by Charles Worley at the U. S. Naval Observatory (hhmmmSddmm). --- HR Harvard Revised (HR) number --- CHARA Newly assigned CHARA discovery number (table1 and table7 only) --- Discov Discovered (table2 only) --- V Visual magnitude from the Bright Star Catalogue (BSC; Hoffleit, D. 1982, Yale University Observatory, New Haven) mag n_V Visual magnitude code (1) ' ' = V on UBV (Johnson) system 'R' = HR magnitudes reduced to the UBV system 'H' = original HR magnitude --- Sp MK spectral type from BSC --- n Number of components, N, from the BSC and incremented to reflect the new companions (table1 only) --- Obs Epoch of the observation as the fraction of the Besselian year yr PA Position angle of new measurement deg Sep Angular separation of new measurement arcsec Ref Reference number (2) (table7 only) --- HR HR number from the BSC number= Footnotes: Also found to be single in: (1) McAlister (1978, PASP, 90, 288) (2) McAlister & Hendry (1981, PASP, 93, 221) (3) Hartkopf & McAlister (1984, PASP, 96, 105) (4) McAlister et al. (1987a, AJ, 92, 183) (BSS1) (5) Lu et al. (1987, AJ, 94, 1318) (6) McAlister et al. (1989, AJ, 97, 510) (BSS2) (7) Mason et al. (1993, AJ, 106, 637) (8) Table 4 (9) Table 3 --- note Footnotes separated by comma and enclosed in parentheses number= Footnotes: Also found to be single in: (1) McAlister (1978, PASP, 90, 288) (2) McAlister & Hendry (1981, PASP, 93, 221) (3) Hartkopf & McAlister (1984, PASP, 96, 105) (4) McAlister et al. (1987a, AJ, 92, 183) (BSS1) (5) Lu et al. (1987, AJ, 94, 1318) (6) McAlister et al. (1989, AJ, 97, 510) (BSS2) (7) Mason et al. (1993, AJ, 106, 637) (8) Table 4 (9) Table 3 --- HR HR number from the BSC --- Name Name --- note Reference number number=1 Reference numbers: 1) McAlister & Hartkopf (1988, Second Catalog of Interferometric Measurements of Binary Stars, CHARA Contribution No. 2, Georgia State University) 2) Weigelt & Wirnitzer (1983, Opt. Lett., 8, 389) 3) McAlister et al. (1992, AJ, 104, 810) 4) Isobe et al. (1990, Publ. Natl. Astron. Obs. Japan 1, 217) --- Meas Number of measurements --- Neg Number of negative measurements --- Comment Comments --- WDS Epoch 2000.0 coordinates used as designator in the Washington Double Star Catalogue maintained by Charles Worley at the U. S. Naval Observatory (hhmmmSddmm). --- HR HR number from the BSC --- CHARA CHARA number --- O_Discov "Discovery" epoch yr PA Position angle, theta deg Sep Angular separation, rho arcsec Nconf Number of attempted confirmations --- Confmin Duration of confirmation attempts, minimum yr Confmax Duration of confirmation attempts, maximum yr HR HR number from the BSC --- P Period yr a Semi-major axis arcsec i Inclination deg OMEGA Longitude of ascending node deg T Epoch yr e Eccentricity --- omega Longitude of perihelion deg Patricia Bauer CDS 1994Jun27AAS CD-ROM series, Volume 1, 1993 J_AJ_106_1639.xml