INTERNATIONAL ASTRONOMICAL UNION COMMISSION 26 (DOUBLE STARS) INFORMATION CIRCULAR No. 167 (FEBRUARY 2009) NEW ORBITS

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1 INTERNATIONAL ASTRONOMICAL UNION COMMISSION 26 (DOUBLE STARS) INFORMATION CIRCULAR No. 167 (FEBRUARY 2009) NEW ORBITS ADS Name P T e Ω(2000) 2009 Author(s) α2000δ n a i ω Last ob MCA 16 Aa Ab 57 y CVETKOVIC CHR 168 AaAb CVETKOVIC FIN 113 AB CVETKOVIC FIN CVETKOVIC FIN 315 Aa Ab CVETKOVIC STT SCARDIA et al. (*) 8128 STF SCARDIA et al. (*) FIN CVETKOVIC HO DOCOBO & LING CHR DOCOBO & TAMAZIAN CHR DOCOBO & TAMAZIAN 1

2 NEW ORBITS (continuation) ADS Name P T e Ω(2000) 2009 Author(s) α2000δ n a i ω Last ob RST DOCOBO & LING CHR CVETKOVIC BU 180 AB LING (*) SCARDIA, PRIEUR, PANSECCHI & ARGYLE PAPERS PUBLISHED IN ABT, H. A.: The Difference Between Metal-Poor and Metal-Rich Binaries. Astron. J. 135, ABT, H. A.: Visual Multiples. IX. MK Spectral Types. Astrophys. J. Sup. Ser. 176 (1), ABT, H. A.: Evidence That the Mean Radial Velocities of Many B0-B3 Stars Are Systematically Incorrect. Pub. Astron. Soc. of the Pacific 120 (869), AUGUSTEIJN, T. et al.: White dwarf-red dwarf binaries in the Sloan Digital Sky Survey - I. Sample definition. Astron. Astrophys. 486 (3), BAINES, E. K. et al.: The Search for Stellar Companions to Exoplanet Host Stars Using the CHARA Array. Astrophys. J. 682 (1), BALEGA, Y. Y. et al.: Atmospheric chemical abundances and the evolutionary status of the spectroscopic and speckle-interferometric binary 9 Cyg. Astron. Reports 52 (3), BENDER, C. F. & SIMON, M.: The Detection of Low-Mass Companions in Hyades Cluster Spectroscopic Binary Stars. Astrophys. J. 689 (1), BLAKE, C. H. et al.: A Spectroscopic Binary at the M/L Transition Astrop. J. Lett. 678, L125 2

3 9. BOUY, H. et al.: Follow-up observations of binary ultra-cool dwarfs. Astron. Astrophys. 481 (3), 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), CONNELLEY, M. S., REIPURTH, B., & TOKUNAGA, A. T. : The Evolution of the Multiplicity of Embedded Protostars. I. Sample Properties and Binary Detections. Astron. J. 135, 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, COSTERO, R. et al.: The Escaping Spectroscopic Binary θ 1 Ori E. Rev. Mex. A. A. Conf. Ser CVETKOVIĆ, Z.: First Orbits for Five Binaries. Astron. J. 136, CVETKOVIĆ, Z. & NINKOVIĆ, S.: Orbits for two short-period and two long-period binaries. New Astron. 13 (8), 587 CVETKOVIĆ, Z., NOVAKOVIĆ, B. & TODOROVIĆ, N.: Orbits of 11 visual binary stars. New Astron. 13 (3), DAHN, C. C. et al.: Trigonometric Parallaxes for Two Late-Type Subdwarfs: LSR (sdm8.0) and the Binary LSR (sd?m6pec). Astrophys. J. 686 (1), DAS, M. K. et al.: Effect of radiation on the stability of equilibrium points in the binary stellar systems: RW-Monocerotis, Kruger 60 Astrophys. J. Sup. Ser. 314, DAY-JONES, A. C. et al.: Discovery of a widely separated ultracool dwarfwhite dwarf binary. Monthly Notices 388 (2), DOCOBO, J. A. et al.: A methodology for studying physical and dynamical properties of multiple stars. Application to the system of red dwarfs Gl 22. Astron. Astrophys. 478 (1), 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, DOCOBO, J. A. et al.: Refining the Parallax in Visual Double Stars Using Orbital and Spectral Data: Application to the System of the K0 Giants, A Astron. J. 136, EATON, J. A., HENRY, G. W. & ODELL, A. P.: Orbits and Pulsations of the Classical ζ Aurigae Binaries. Astrophys. J. 679 (2),

4 24. EGGENBERGER, P. et al.: Analysis of 70 Ophiuchi AB including seismic constraints. Astron. Astrophys. 482 (2), EGGLETON, P. P. & TOKOVININ, A. A.: A catalogue of multiplicity among bright stellar systems. Monthly Notices 389 (2), ELDRIDGE, J. J., IZZARD, R. G. & TOUT, C. S.: The effect of massive binaries on stellar populations and supernova progenitors. Monthly Notices 384 (3), EVANS, N. R. et al.: Direct Detection of the Close Companion of Polaris with the Hubble Space Telescope. Astron. J. 136, FEKEL, F. C. et al.: Infrared Spectroscopy of Symbiotic Stars. VI. Combined Orbits for Two S-Type Systems: V455 Scorpii and SS Astron. J. 136, GIES, D. R. et al.: A Spectroscopic Orbit for Regulus. Astrophys. J. Lett. 682 (2), L GOLDMAN, B. et al.: Binarity at the L/T brown dwarf transition - Adaptive optics search for companions. Astron. Astrophys. 490, (2), GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities - Paper 198: 48 Piscium, 16 Aurigae, 5 Herculis, and Beta Scuti. The Observatory 128, GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities - Paper 199: HD , HD , HD , and HD with a preliminary discussion of HR The Observatory 128, 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, GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities - Paper 201: HDE and HDE The Observatory 128, GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities - Paper 202: 31 and 32 Cygni. The Observatory 128, GRIFFIN, R. F.: The radial velocity of HDE The Observatory 128, GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities: A synopsis of papers The Observatory 128, GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities - Paper 203: HD , HD , HD , and HD The Observatory 128, HARETER, M. et al.: MOST discovers a multimode δ Scuti star in a triple system: HD Astron. Astrophys. 492, (1), 185 4

5 40. HARTKOPF, W. I., MASON, B. D. & RAFFERTY, T. J.: Speckle Interferometry at the USNO Flagstaff Station: Observations Obtained in and 17 New Orbits. Astron. J. 135, 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), HRIVNAK, B. J. et al.: A Spectroscopic and Photometric Study of the Metal-Poor, Pulsating, Post-Asymptotic Giant Branch Binary HD Astron. J. 136, HORCH, E. P. et al.: Charge-Coupled Device Speckle Observations of Binary Stars with the WIYN Telescope. V. Measures during Astron. J. 136, IORIO, L.: The impact of the oblateness of Regulus on the motion of its companion. Astrophys. Space Science 318 (1-2), JOERGENS, V.: Binary frequency of very young brown dwarfs at separations smaller than 3 AU. Astron. Astrophys. 492, (2), KARAMI, K., MOHEBI, R. & SOLTANZADEH, M. M.: Application of a new nonlinear least squares velocity curve analysis technique for spectroscopic binary stars. Astrophys. Space Science 318 (1-2), KAWKA, A. et al.: Orbital Parameters and Chemical Composition of Four White Dwarfs in PostCommon-Envelope Binaries. Astrophys. J. 675 (2), KERVELLA, P. et al.: The radii of the nearby K5V and K7V stars 61 Cygni A & B - CHARA/FLUOR interferometry and CESAM2k modeling. Astron. Astrophys. 488 (2), KIMINKI, D. C., McSWAIN, M. V. & KOBULNICKY, H. A.: New Massive Binaries in the Cygnus OB2 Association. Astrophys. J. 679 (2), KIYAEVA, O. V., KISELEV, A. A. & IZMAILOV, I. S.: Dynamical study of Wide Pairs of Stars based on Data from de WDS Catalog. Astron. Letters 34 (6), KÖHLER, R. et al.: Orbits and masses in the T Tauri system. Astron. Astrophys. 482, (3), 929 KÖHLER, R. et al.: Multiplicity of young stars in and around R Coronae Australis. Astron. Astrophys. 488, (3), KOUWENHOVEN, M. B. N. & DE GRIJS, R: The effect of binaries on the dynamical mass determination of star clusters. Astron. Astrophys. 480, KOUWENHOVEN, M. B. N. et al.: Pairing mechanisms for binary stars. Astron. Nach. 329 (9-10), 984 5

6 55. LAFRENIÈRE, D. et al.: A Multiplicity Census of Young Stars in Chamaeleon I. Astrophys. J. 683 (2), LAW, N. M., HODGKIN, S. T. & MACKAY, C. D.: The LuckyCam survey for very low mass binaries II. 13 new M4.5 - M6.0 binaries. Monthly Notices 384 (1), LEE, D.-W. et al.: Microlensing Detections of Planets in Binary Stellar Systems. Astrophys. J. 672, 623 (2008) 58. LIU, M. C., DUPUY, T. J. & IRELAND, M. J.: Keck Laser Guide Star Adaptive Optics Monitoring of 2MASS J AB: First Dynamical Mass Determination of a Binary T Dwarf. Astrophys. J. 689 (1), LUK YANOV, L. G.: Dynamical evolution of stellar orbits in close binary systems with conservative mass transfer. Astron. Reports 52 (8), MACHIDA, M. N.: Binary Formation in Star-forming Clouds with Various Metallicities. Astrophys. J. Lett. 682 (1), L1 61. MAKAROV, V. V., ZACHARIAS, N. & HENNESSY, G. S.: Common Proper Motion Companions to Nearby Stars: Ages and Evolution. Astrophys. J. 687 (1), MARINOVIC, A. A. B., GLEBBEEK, E. & POLS, R.: Orbital eccentricities of binary systems with a former AGB star. Astron. Astrophys. 480 (3), MASON, B. D., HARTKOPF, W. I. & WYCOFF, G. L.: Speckle Interferometry at the U.S. Naval Observatory. XIV. Astron. J. 136, MASSAROTTI et al.: Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity. Astron. J. 135, MAXTED, P. F. et al.: A survey for low-mass spectroscopic binary stars in the young clusters around σ Orionis and λ Orionis. Monthly Notices 385 (4), MEILLAND, A. et al.: δ Centauri: a new binary Be star detected by VLTI/AMBER spectro-interferometry. Astron. Astrophys. 488 (3), L MERMILLIOD, J.-C., QUELOZ, D. & MAYOR, M.: Membership and binarity of solar-type dwarfs in the nearby open cluster Alpha Persei (Mel 20). Astron. Astrophys. 488 (1), MINTS, A. A.: Interaction of binary stars with clusters. Astron. Lett. 34 (1), MONI BIDIN, C., CATELAN, M. & ALTMANN, M.: Is a binary fraction-age relation responsible for the lack of EHB binaries in globular clusters?. Astron. Astrophys. 480 (1), L1 6

7 70. MUTERSPAUGH, M. W. et al.: Masses, Luminosities, and Orbital Coplanarities of the µ Orionis Quadruple-Star System from Phases Differential Astrometry. Astron. J. 135, NAZÉ, Y. et al.: A binary signature in the non-thermal radio-emitter Cyg OB2 9. Astron. Astrophys. 483 (2), 543 NEUHÄUSER, R. et al.: Astrometric and photometric monitoring of GQ Lupi and its sub-stellar companion. Astron. Astrophys. 484 (1), PATIENCE, J. et al.: Optical Interferometric Observations of θ 1 Orionis C from NPOI and Implications for the System Orbit. Astrophys. J. Lett. 674 (2), L PENNY, L. R., OUZTS, C & GIES, D. R.: Tomographic Separation of Composite Spectra. XI. The Physical Properties of the Massive Close Binary HD (TU Muscae). Astrophys. J. 681 (1), PICHARDO, B., SPARKE, L. S. & AGUILAR, L. A.: Geometrical and physical properties of circumbinary discs in eccentric stellar binaries. Monthly Notices 391 (2), PRIEUR, J.-L. et al.: Speckle observations with PISCO in Merate V. Astrometric measurements of visual binaries in Monthly Notices 387 (2), RADIGAN, J. et al.: Discovery of a Wide Substellar Companion to a Nearby Low- Mass Star. Astrophys. J. 689 (1), RAMM, D. J.: High-precision orbital parameters for the short-period spectroscopic binary HD an eccentric orbit confirmed for an old but active system. Monthly Notices 387 (1), REID, N. I. et al.: L-Dwarf Binaries in the 20-Parsec Sample. Astron. J. 135, RIAZ, B., GIZIS, J. E. & SAMADDAR, D.: Hubble Space Telescope Search for M Subdwarf Binaries. Astrophys. J. 672 (2), RICA, F.: Orbital Elements for BU 1240 AB. Nature of the C and D Components. Rev. Mex. A. A. 44 (1), RUCINSKI, S. M. et al.: Radial Velocity Studies of Close Binary Stars. XIII. Astron. J. 136, SANA, H, et al.: The massive star binary fraction in young open clusters I. NGC 6231 revisited. Monthly Notices 386 (1), SCARDIA, M. et al.: Speckle observations with PISCO in Merate: IV. Astrometric measurements of visual binaries in Astron. Nach. 329 (1), SCARDIA, M. et al.: Preliminary orbital elements of six visual binary stars. Astron. Nach. 329 (4), 379 7

8 86. SCHAEFER, G. H. et al.: Preliminary Orbit of the Young Binary Haro 1-14c. Astron. J. 135, SCHMIDT, T. O. B. et al.: Confirmation of the binary status of Chamaeleon H α 2 - a very young low-mass binary in Chamaeleon. Astron. Astrophys. 484 (2), SCHUH, S. et al.: A new period determination for the close PG1159 binary SDSS J Astron. Nach. 329 (4), SEIFAHRT, A. et al.: Improved orbital solution and masses for the very low-mass multiple system LHS Astron. Astrophys. 484 (2), SESAR, B, IZEVIĆ, Ž. & JURIC, M.: Candidate Disk Wide Binaries in the Sloan Digital Sky Survey. Astrophys. J. 689 (2), SHKOLNIK E. et al.: BD : A Low-Mass, Quadruple-lined Spectroscopic and Eclipsing Binary. Astrophys. J. 682 (2), SKEMER, A. J. et al.: Evidence for Misaligned Disks in the T Tauri Triple System: 10 m Superresolution with MMTAO and Markov Chains. Astrophys. J. 676 (2), STRASSMEIER, K. et al.: The chromospherically active, triple, ellipsoidal, and eclipsing binary HD 6286 = BE Piscium: a laboratory for binary evolution. Astron. Astrophys. 485 (1), TAKEDA, G., KITA, R. & RASIO, F. A.: Planetary Systems in Binaries. I. Dynamical Classification. Astrophys. J. 683 (2), TAMAZIAN, V. S. et al.: Preliminary Orbit and Differential Photometry of the Nearby Flare Star CR Dra. Astron. J. 136, 974 (2008) 96. TAMBOVTSEVA, L. V. & GRININ, V. P.: Disc wind in the HH 30 binary models. Monthly Notices 387 (3), THOMPSON, I. B. et al.: CS : A Double-Lined Carbon- and s-processenhanced Metal-Poor Binary Star1. Astrophys. J. 677 (1), TOKOVININ, A. A.: Comparative statistics and origin of triple and quadruple stars. Monthly Notices 389 (2), TOKOVININ, A. A. & CANTARUTTI, R.: First Speckle Interferometry at SOAR Telescope with Electron-Multiplication CCD. Pub. Astron. Soc. of the Pacific 120 (864), TOMKIN, J. & FEKEL, F.: New Precision Orbits of Bright Double-Lined Spectroscopic Binaries. II. HR 2962, HD , and 16 PSC. Astron. J. 135, TORRES, G., VAZ, L. P. R. & LACY, C. H. S.: Absolute Properties of the Spotted Eclipsing Binary Star CV Boötis. Astron. J. 136,

9 102. TORRES, R. M. et al.: Milli-arcsecond Binaries. Rev. Mex. A. A. Conf. Ser TURNER, N. H. et al.: Adaptive Optics Photometry and Astrometry of Binary Stars. III. A Faint Companion Search of O-Star Systems. Astron. J. 136, WILLIAMS, S. J. et al.: Dynamical Masses for the Large Magellanic Cloud Massive Binary System [L72] LH Astrophys. J. 682 (1), ZHAO, M. et al.: First Resolved Images of the Eclipsing and Interacting Binary β Lyrae. Astrophys. J. Lett. 684 (2), L ZHUCHKOV, R. Y. et al.: Physical and Dynamical Parameters of the Multiple System HD Astron. Reports 52 (7), 546 ANNOUNCEMENTS ADDRESS CHANGE FOR COMMISSION 26 WEBSITE AND USNO DOUBLE STAR CATALOGS Under direction of its Chief of Naval Operations, all of the websites for the U.S. Navy Oceanography community were recently combined under a single web portal. As a result, the URLs for the Commission 26 website, as well as the WDS, Fourth Interferometric Catalog, Sixth Orbit Catalog, and all other USNO double star catalogs, have changed. All of these sites can now be reached from the URL: There may be some further changes to locations of the catalog data files themselves, but the addresses of this page and the pages linked directly from it should remain correct. A considerable number of changes were made to these catalogs in rather short order, so we would appreciate notification of any broken links, as well as any erroneous or missing information the reader may run across. Suggestions for other improvements are also welcome. Brian D. Mason & William I. Hartkopf U.S. Naval Observatory 9

10 *********************************************************************** The deadline for contributions to Information Circular No. 168 is: June 15th 2009 J. A. Docobo J. F. Ling Tel Fax: Observatorio Astronómico R. M. Aller P. O. Box Universidade de Santiago de Compostela SPAIN ISSN: