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Stellar encounters with the solar system
We continue our search, based on Hipparcos data, for stars which have encountered or will encounter the solar system (Garcia-Sanchez et al. [CITE]). Hipparcos parallax and proper motion data areExpand
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VLBI survey of Rho Ophiuchi - A population of magnetized, diskless young stellar objects
Results are reported of VLBI observations of nine Rho Oph YSOs, which yield positive detections in five cases, with flux densities ranging from 1.2 to 9 mJy at 3.6 cm. In contrast, whileExpand
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The Epsilon Eridani System Resolved by Millimeter Interferometry
We present observations of Epsilon Eridani from the Submillimeter Array (SMA) at 1.3 millimeters and from the Australia Telescope Compact Array (ATCA) at 7 millimeters that reach an angularExpand
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High-precision VLBI astrometry of radio-emitting stars
Multiple-epoch phase-referenced VLBI observations of 11 radio-emitting stars have been conducted as part of an astrometric program to link the Hipparcos optical reference frame to the radioExpand
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An extreme scattering event in the direction of the millisecond pulsar 1937 + 21
LARGE fluctuations in the radio emissions from the quasar 0954 + 658 (ref. 1) attest to the existence of large-scale inhomogeneities in the ionized interstellar medium. These fluctuations, termedExpand
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VLBI astrometric identification of the radio emitting region in Algol and determination of the orientation of the close binary
A minute displacement of the radio source in Algol was measured by VLBI during two consecutive orbital revolutions of the close binary. The magnitude of the displacement unambiguously indicates thatExpand
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Dual polarization VLBI observations of stellar binary systems at 5 GHz
The binary systems Sigma CrB, SZ Psc, HR 1099, UX Ari, HR 5110, Algol, and Cyg X-1 are characterized in terms of marcsec-scale radio structure on the basis of dual-polarization observations atExpand
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THE HIPPARCOS CATALOGUE AS A REALISATION OF THE EXTRAGALACTIC REFERENCE SYSTEM
The paper describes the methods and observations by which the Hipparcos Catalogue was linked to the International Celestial Reference System (ICRS). The contributions of several groups represented inExpand
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Radio emission from RS CVn binaries. II - Polarization and spectral properties
Multiepoch radio observations of circular polarization and spectral characteristics of several close, late-type stellar binaries are reported. The median luminosity of four well-studied systemsExpand
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MAMBO image of the debris disk around epsilon Eridani : robustness of the azimuthal structure
The debris disk closest to Earth is the one around the star epsilon Eridani at a distance of 3.2 pc. It is the prime target for detailed studies of a belt of planetesimals left from the early phaseExpand
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