INTERNATIONAL ASTRONOMICAL UNION COMMISSION 26 (DOUBLE STARS) INFORMATION CIRCULAR No. 167 (FEBRUARY 2009) NEW ORBITS ADS Name P T e ­(2000) 2009 Author(s) ®2000± n a i ! Last ob. 2010 MCA 16 Aa Ab 57y90 2037.96 0.357 4±1 30±9 000342 CVETKOVIC 04422+2257 6±2180 000284 130±7 142±2 2005.869 28.3 0.348 5322 CHR 168 AaAb 74.28 1996.06 0.716 52.6 255.0 0.100 CVETKOVIC 06410+0954 4.8468 0.096 51.2 69.2 2006.191 256.8 0.103 FIN 113 AB 269.99 1977.65 0.631 104.6 80.7 0.150 CVETKOVIC 08144-4550 1.3334 0.440 80.1 173.0 2006.199 82.2 0.160 FIN 116 115.90 1994.18 0.519 61.1 237.2 0.215 CVETKOVIC 08275-5501 3.1062 0.250 123.7 79.7 2006.199 235.3 0.221 FIN 315 Aa Ab 196.49 2133.28 0.105 126.7 190.6 0.086 CVETKOVIC 08291-4756 1.8322 0.150 60.5 296.0 2006.194 193.3 0.085 7871 STT 224 214.33 2031.69 0.150 162.5 140.8 0.454 SCARDIA 10397+0851 1.6797 0.550 132.2 81.1 2007.288 139.1 0.448 et al. (*) 8128 STF 1527 341.52 2010.19 0.889 178.2 170.7 0.283 SCARDIA 11190+1416 1.0541 2.300 62.2 26.9 2007.288 187.5 0.245 et al. (*) FIN 372 39.61 1993.44 0.314 29.3 9.1 0.113 CVETKOVIC 14567-6247 9.0881 0.091 150.6 224.6 2006.192 4.3 0.114 9547 HO 60 183.0 1973.28 0.543 34.0 68.4 0.163 DOCOBO 15136+3453 1.9672 0.281 109.3 164.2 2005.5179 66.9 0.170 & LING CHR 51 46.37 1992.93 0.957 103.4 248.0 0.290 DOCOBO & 15513-0305 7.7636 0.389 104.4 75.1 2007.509 246.9 0.289 TAMAZIAN CHR 55 76.32 1989.98 0.691 177.5 116.6 0.064 DOCOBO & 16254+3727 4.7170 0.357 96.6 292.5 2007.484 103.6 0.060 TAMAZIAN 1 NEW ORBITS (continuation) ADS Name P T e ­(2000) 2009 Author(s) ®2000± n a i ! Last ob. 2010 RST 3950 26.55 2000.92 0.858 137.8 72.6 0.255 DOCOBO 16283-1613 13.5593 0.176 148.3 259.8 2005.5205 69.9 0.265 & LING CHR 90 70.62 2005.29 0.244 15.1 22.0 0.215 CVETKOVIC 19531-1436 5.0975 0.281 121.9 315.7 2006.194 17.6 0.222 16518 BU 180 AB 537. 2201.93 0.198 161.8 135.2 0.535 LING 23072+6050 0.6704 0.517 133.4 180.4 2006.869 134.8 0.533 (*) SCARDIA, PRIEUR, PANSECCHI & ARGYLE PAPERS PUBLISHED IN 2008 1. ABT, H. A.: The Di®erence Between Metal-Poor and Metal-Rich Binaries. Astron. J. 135, 722 (2008). 2. ABT, H. A.: Visual Multiples. IX. MK Spectral Types. Astrophys. J. Sup. Ser. 176 (1), 216 (2008). 3. ABT, H. A.: Evidence That the Mean Radial Velocities of Many B0-B3 Stars Are Systematically Incorrect. Pub. Astron. Soc. of the Paci¯c 120 (869), 715 (2008). 4. AUGUSTEIJN, T. et al.: White dwarf-red dwarf binaries in the Sloan Digital Sky Survey - I. Sample de¯nition. Astron. Astrophys. 486 (3), 843 (2008). 5. BAINES, E. K. et al.: The Search for Stellar Companions to Exoplanet Host Stars Using the CHARA Array. Astrophys. J. 682 (1), 577 (2008). 6. BALEGA, Y. Y. et al.: Atmospheric chemical abundances and the evolutionary sta- tus of the spectroscopic and speckle-interferometric binary 9 Cyg . Astron. Reports 52 (3), 226 (2008). 7. BENDER, C. F. & SIMON, M.: The Detection of Low-Mass Companions in Hyades Cluster Spectroscopic Binary Stars. Astrophys. J. 689 (1), 416 (2008). 8. BLAKE, C. H. et al.: A Spectroscopic Binary at the M/L Transition Astrop. J. Lett. 678, L125 (2008). 2 9. BOUY, H. et al.: Follow-up observations of binary ultra-cool dwarfs . Astron. As- trophys. 481 (3), 757 (2008). 10. CARQUILLAT, J.-M. & PRIEUR, J.-L. : Contribution to the study of F-G-K-M binaries: XII. Orbital elements of seven new spectroscopic binaries. Astron. Nach. 329 (1), 44 (2008). 11. CONNELLEY, M. S., REIPURTH, B., & TOKUNAGA, A. T. : The Evolution of the Multiplicity of Embedded Protostars. I. Sample Properties and Binary Detec- tions. Astron. J. 135, 2496 (2008). 12. CONNELLEY, M. S., REIPURTH, B., & TOKUNAGA, A. T. : The Evolution of the Multiplicity of Embedded Protostars. II. Binary Separation Distribution and Analysis. Astron. J. 135, 2526 (2008). 13. COSTERO, R. et al.: The Escaping Spectroscopic Binary θ1 Ori E. Rev. Mex. A. A. Conf. Ser. 34 102 (2008). 14. CVETKOVIC,¶ Z.: First Orbits for Five Binaries. Astron. J. 136, 1746 (2008). 15. CVETKOVIC,¶ Z. & NINKOVIC,¶ S.: Orbits for two short-period and two long-period binaries. New Astron. 13 (8), 587 (2008). 16. CVETKOVIC,¶ Z., NOVAKOVIC,¶ B. & TODOROVIC,¶ N.: Orbits of 11 visual bi- nary stars. New Astron. 13 (3), 125 (2008). 17. DAHN, C. C. et al.: Trigonometric Parallaxes for Two Late-Type Subdwarfs: LSR 1425+71 (sdM8.0) and the Binary LSR 1610-00 (sd?M6pec). Astrophys. J. 686 (1), 548 (2008). 18. DAS, M. K. et al.: E®ect of radiation on the stability of equilibrium points in the binary stellar systems: RW-Monocerotis, Kruger 60 Astrophys. J. Sup. Ser. 314, 261 (2008). 19. DAY-JONES, A. C. et al.: Discovery of a widely separated ultracool dwarfwhite dwarf binary. Monthly Notices 388 (2), 838 (2008). 20. DOCOBO, J. A. et al.: A methodology for studying physical and dynamical prop- erties of multiple stars. Application to the system of red dwarfs Gl 22. Astron. Astrophys. 478 (1), 187 (2008). 21. DOCOBO, J. A. et al.: First Results of the Optical Speckle Interferometry with the 3.5 m Telescope at Calar Alto (Spain): Measurements and Orbits of Visual Binaries. Astron. J.135, 1803 (2008). 22. DOCOBO, J. A. et al.: Re¯ning the Parallax in Visual Double Stars Using Orbital and Spectral Data: Application to the System of the K0 Giants, A 1808. Astron. J. 136, 890 (2008). 23. EATON, J. A., HENRY, G. W. & ODELL, A. P.: Orbits and Pulsations of the Classical ³ Aurigae Binaries. Astrophys. J. 679 (2), 1490 (2008). 3 24. EGGENBERGER, P. et al.: Analysis of 70 Ophiuchi AB including seismic con- straints. Astron. Astrophys. 482 (2), 631 (2008). 25. EGGLETON, P. P. & TOKOVININ, A. A.: A catalogue of multiplicity among bright stellar systems . Monthly Notices 389 (2), 869 (2008). 26. ELDRIDGE, J. J., IZZARD, R. G. & TOUT, C. S.: The e®ect of massive binaries on stellar populations and supernova progenitors. Monthly Notices 384 (3), 1109 (2008). 27. EVANS, N. R. et al.: Direct Detection of the Close Companion of Polaris with the Hubble Space Telescope. Astron. J. 136, 1137 (2008). 28. FEKEL, F. C. et al.: Infrared Spectroscopy of Symbiotic Stars. VI. Combined Orbits for Two S-Type Systems: V455 Scorpii and SS 73-90. Astron. J. 136, 146 (2008). 29. GIES, D. R. et al.: A Spectroscopic Orbit for Regulus. Astrophys. J. Lett. 682 (2), L117 (2008). 30. GOLDMAN, B. et al.: Binarity at the L/T brown dwarf transition - Adaptive optics search for companions. Astron. Astrophys. 490, (2), 763 (2008). 31. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities - Paper 198: 48 Piscium, 16 Aurigae, 5 Herculis, and Beta Scuti. The Observatory 128, 21 (2008). 32. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities - Paper 199: HD 105443, HD 108576, HD 112276, and HD 112641 with a preliminary discussion of HR 4964. The Observatory 128, 95 (2008). 33. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities - Paper 200: Kappa Persei, Beta Leonis Minoris, 56 Ursae Majoris, HR 4593, and 39 Cygni. The Observatory 128, 176 (2008). 34. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities - Paper 201: HDE 245814 and HDE 260988. The Observatory 128, 290 (2008). 35. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities - Paper 202: 31 and 32 Cygni. The Observatory 128, 362 (2008). 36. GRIFFIN, R. F.: The radial velocity of HDE 276743. The Observatory 128, 407 (2008). 37. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities: A synopsis of papers 151 - 200. The Observatory 128, 448 (2008). 38. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities - Paper 203: HD 117063, HD 117123, HD 117139, and HD 117673. The Observatory 128, 474 (2008). 39. HARETER, M. et al.: MOST discovers a multimode ± Scuti star in a triple system: HD 61199. Astron. Astrophys. 492, (1), 185 (2008). 4 40. HARTKOPF, W. I., MASON, B. D. & RAFFERTY, T. J.: Speckle Interferometry at the USNO Flagsta® Station: Observations Obtained in 2003-2004 and 17 New Orbits. Astron. J. 135, 1334 (2008). 41. HERNANDEZ, X. & LEE, W. H.: The tightening of wide binaries in dSph galaxies through dynamical friction as a test of the dark matter hypothesis . Monthly Notices 387 (4), 1727 (2008). 42. HRIVNAK, B. J. et al.: A Spectroscopic and Photometric Study of the Metal-Poor, Pulsating, Post-Asymptotic Giant Branch Binary HD 46703 . Astron. J. 136, 1557 (2008). 43. HORCH, E. P. et al.: Charge-Coupled Device Speckle Observations of Binary Stars with the WIYN Telescope. V. Measures during 2001-2006. Astron. J.