2-6 September 2024
CJD Bonn Castell
Europe/Berlin timezone
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Contribution

VLBI detections of nearby (<100 pc) young stars

Speakers

  • Sergio Abraham DZIB QUIJANO

Primary authors

Co-authors

Content

I will present a new project aiming to increase the number of sources with Very Long Baseline Interferometry (VLBI) astrometry available for comparison with the Gaia results. Using the Very Long Baseline Array, we have observed 31 stars with recently reported radio emission, located <100 pc from the Sun, and all are in the Gaia DR3 catalog. Our first observations yielded 10 detections (a 30% detection rate). Using the astrometric Gaia results, we have extrapolated the target positions to the epochs of our radio observations and compared them with the position of the radio sources. I will discuss the results of this analysis and the importance of further Gaia - VLBI stellar astrometry comparisons.