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Milli-arcsecond binaries

Published online by Cambridge University Press:  01 October 2007

R. M. Torres
Affiliation:
Centro de Radiastronomía y Astrofísica, Universidad Nacional Autónoma de México Apartado Postal 72-3 (Xangari), 58089 Morelia, Michoacán, México email: r.torres@astrosmo.unam.mx, l.loinard@astrosmo.unam.mx, l.rodriguez@astrosmo.unam.mx
L. Loinard
Affiliation:
Centro de Radiastronomía y Astrofísica, Universidad Nacional Autónoma de México Apartado Postal 72-3 (Xangari), 58089 Morelia, Michoacán, México email: r.torres@astrosmo.unam.mx, l.loinard@astrosmo.unam.mx, l.rodriguez@astrosmo.unam.mx
A. J. Mioduszewski
Affiliation:
National Radio Astronomy Observatory, Array Operations Center1003 Lopezville Road, Socorro, NM 87801, USA email: amiodusz@aoc.nrao.edu
L. F. Rodríguez
Affiliation:
Centro de Radiastronomía y Astrofísica, Universidad Nacional Autónoma de México Apartado Postal 72-3 (Xangari), 58089 Morelia, Michoacán, México email: r.torres@astrosmo.unam.mx, l.loinard@astrosmo.unam.mx, l.rodriguez@astrosmo.unam.mx
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Abstract

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As part of an astrometric program (see Loinard et al. in this volume), we have obtained an unprecedented sample of high-resolution (~ 1 mas) VLBA images of several nearby young stellar systems. As was to be expected, these images revealed interesting new characteristics of these objects. Perhaps the most interesting of these characteristics is the detection of a high rate of very tight binary stars (separations of a few mas) in our sample: of the 9 objects observed to date, 5 are binaries of this type.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2008

References

Bouvier, J., Rigaut, F., & Nadeau, D. 1997, A&A, 323, 139Google Scholar
Duchêne, G., Bouvier, J., & Simon, T. 1999, A&A, 343, 831Google Scholar
Duchêne, G., Bouvier, J., Bontemps, S., Andr, P., & Motte, F. 2004, A&A, 427, 651Google Scholar
Duquennoy, A. & Mayor, M. 1991, A&A, 248, 485Google Scholar
Fischer, D. A. & Marcy, G. W. 1992 ApJ, 396, 178Google Scholar
Köhler, R. & Leinert, C. 1998 A&A, 331, 977Google Scholar
Konopacky, Q. M., Ghez, A. M., Rice, E. L., & Duchêne, G. 2007 ApJ, 663, 394Google Scholar
Prosser, C. F., Stauffer, J. R., Hartmann, L., Soderblom, D. R., Jones, B. F., Werner, M. W., & McCaughrean, M. J. 1994 ApJ, 421, 517Google Scholar
Reid, I. N. & Gizis, J. E. 1997 AJ, 113, 2246Google Scholar