Speckle Interferometry at the Oservatorio Astronómico Nacional. III
V. G. Orlov, V. V. Voitsekhovich, C. A. Guerrero, F. Ángeles, A. Farah Simon, E. Luna, and R. Vázquez Robledo
Instituto de Astronomía, Universidad Nacional Autónoma de Mexico, Apdo. Postal 70–264, Cd. Universitaria, 04510 Mexico D.F., Mexico (fernando.angeles@gmail.com, farah, cguerrero@astro.unam.mx, eala@astrosen.unam.mx, orlov, rvazquez@astro.unam.mx, vvv.spm@gmail.com).
Received 2011 March 10
Accepted 2011 April 6
RESUMEN
Se presentan las mediciones interferométricas de motas de estrellas binarias realizadas durante agosto de 2010 con el telescopio 1.5 m y en noviembre de 2010 con el telescopio de 2.1 m del Observatorio Astronómico Nacional en SPM (México). Los resultados reportados aquí son 238 mediciones de 225 pares con una magnitud límite de V = 12.2. De estas, 211 parejas presentan separaciones de menos de 1". El error medio obtenido en la separación es de 0".02 y en el ángulo de posición de 1.5°. Algunos de los ángulos de posición se determinaron con los 180° usuales de ambigüedad.
ABSTRACT
We present speckle interferometric measurements of binary stars performed during August of 2010 with the 1.5 m telescope and during November of 2010 with the 2.1 m telescope of the Observatorio Astronomico Nacional at SPM (Mexico). We report here the results of 238 measurements of 225 pairs with a primary limiting magnitude of V = 12.2; 211 of them have separations less than 1". The mean error in separation is 0" .03 and 1.5° in position angle. Some of the position angles were determined with the usual 180° ambiguity.
Key Words: binaries: visual — stars: fundamental parameters — techniques: high angular resolution — techniques: interferometric.
DESCARGAR ARTÍCULO EN FORMATO PDF
]]> ACKNOWLEDGMENTS
The speckle interferometry program at the OAN telescopes is supported by the Dirección General de Asuntos del Personal Académico (Universidad Nacional Autónoma de México, Mexico) under projects IN104910 and IN113308 (PAPIIT).
REFERENCES
Baize, P. 1981, A & AS, 44, 199. [ Links ]
––––––––––. 1984, A & AS, 56, 103. [ Links ]
––––––––––. 1989, A & AS, 78, 125. [ Links ]
]]>Balega, I. I., Balega, Y. Y., Hofmann, K.–H., Malogolovets, E. V., Schertl, D., Shkhagosheva, Z. U., & Weigelt, G. 2006, A & A, 448, 703. [ Links ]
Brendley, M., & Hartkopf, W. I. 2007, IAUDS Inf. Circ. 163. [ Links ]
Couteau, P. 1995, VizieR Online Data Catalog 1209, http://cdsarc.u–strasbg.fr/viz–bin/Cat?I/209A. [ Links ]
Cvetkovic, Z., & Novakovic, B. 2006, Serb. Astron. J., 173, 73. [ Links ]
Cvetkovic, Z. 2010, IAUDS Inf. Circ. 172. [ Links ]
]]>ESA 1997, The Hipparcos and Tycho Catalogues, ESA SP–1200 (Noordwijik: ESA). [ Links ]
Hartkopf, W. I., & Mason, B. D. 2001, IAUDS Inf. Circ. 145. [ Links ]
––––––––––. 2003, Sixth Catalog of Orbits of Visual Binary Stars (Washington: USNO), http://ad.usno.navy.mil/wds/orb6.html. [ Links ]
––––––––––. 2009, AJ, 138, 813. [ Links ]
Hartkopf, W. I., Mason, B. D., & Rafferty, T. 2008, AJ, 135, 1334. [ Links ]
]]>Hartkopf, W. I., et al. 2000, AJ, 119, 3084. [ Links ]
Heintz, W. D. 1998, ApJS, 117, 587. [ Links ]
Ling, J. F. 2004, IAUDS Inf. Circ. 154. [ Links ]
Muller, P. 1955, J. Obs., 38, 58. [ Links ]
Olevic, D. 2002, IAUDS Inf. Circ. 147. [ Links ]
]]>Olevic, D., & Jovanovic, P. 2001, Serb. Astron. J., 163, 5. [ Links ]
Orlov, V. G., Voitsekhovich, V. V., Mendoza–Valencia, G. A., Svyryd, A., Rivera, J. L., Ortiz, F., & Guerrero, C. A. 2009, RevMexAA, 45, 155. [ Links ]
Orlov, V. G., Voitsekhovich, V. V., Rivera, J. L., Guerrero, C. A., & Ortiz, F. 2010, RevMexAA, 46, 245. [ Links ]
Scardia, M. 2003, IAUDS Inf. Circ. 149. [ Links ]
Scardia, M., Prieur, J.–L., Aristidi, E., & Koechlin, L. 2000, Astron. Nachr., 321, 255. [ Links ]
]]>Scardia, M., Prieur, J.–L., Koechlin, L., & Aristidi, E.2002, IAUDS Inf. Circ. 146. [ Links ]
Seymour, D., Mason, B. D., Hartkopf, W. I., & Wycoff, G. L. 2002, AJ, 123, 1023. [ Links ]
Starikova, G. A. 1977, Astron. Tsirk. 961, 7. [ Links ]
––––––––––. 1983, Soviet Astron. Lett., 9, 189. [ Links ]
––––––––––. 1985, Trudy Gos. Astron. Inst. Sternberga, 57, 243. [ Links ]
]]>Tokovinin, A., Mason, B. D., & Hartkopf W. I. 2010, AJ, 139, 743. [ Links ]
Worley, C. E., & Douglass, G. G. 1997, A & AS, 125, 523. [ Links ]
Zirm, H. 2003, IAUDS Inf. Circ. 151. [ Links ]
]]>