Results 91 to 100 of about 165 (125)
The Celestial Reference Frame at K Band: The CRF-K-2025 Catalog
The Astronomical JournalWe present an updated K -band (24 GHz) celestial reference frame (CRF) constructed from ∼3.5 million very long baseline interferometry (VLBI) observations collected during 211 observing epochs between 2002 May and 2025 December using the Very Long ...
David Gordon +12 more
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Extragalactic radio and optic fundamental astrometry
A presentation at the IAU meeting in 2024.
openaire +3 more sources
The Astrophysical Journal LettersInterstellar comets provide rare opportunities for probing the diversity of refractory and volatile inventory around other stars. As the second ever interstellar comet and the third interstellar object, 3I/ATLAS has been the focus of telescopic ...
Juncen Li +3 more
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A VLBI Software Correlator for Fast Radio Transients
The Astronomical JournalOne major goal in fast radio burst science is to detect fast radio bursts (FRBs) over a wide field of view without sacrificing the angular resolution required to pinpoint them to their host galaxies.
Calvin Leung +16 more
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Dynamical Mass of the Ophiuchus Intermediate-mass Stellar System S1 with DYNAMO-VLBA
The Astronomical JournalWe report dynamical mass measurements of the individual stars in the most luminous and massive stellar member of the nearby Ophiuchus star-forming region, the young tight binary system S1.
Jazmín Ordóñez-Toro +10 more
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The Gaia space astrometry mission: status and complementarity with radio astrometry [PDF]
Proceedings of 11th European VLBI Network Symposium & Users Meeting — PoS(11th EVN Symposium), 2016 openaire +1 more source
VLBI Astrometry of the Hipparcos Link Radio Stars [PDF]
International Astronomical Union Colloquium, 1991 J-F. Lestrade +3 more
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VLBI and optical astrometry of southern extragalactic radio sources and radio stars
The Astronomical Journal, 1990 Graeme L. White +5 more
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Precise radio astrometry and new developments for the next generation of instruments [PDF]
Astronomy and Astrophysics Review, 2020 We present a technique-led review of the progression of precise radio astrometry, from the first demonstrations, half a century ago, until to date and into the future. We cover the developments that have been fundamental to allow high accuracy and precision astrometry to be regularly achieved. We review the opportunities provided by the next-generation
Richard Dodson +2 more
exaly +3 more sources