2-6 September 2024
CJD Bonn Castell
Europe/Berlin timezone
- evn2024@mpifr.de
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Contribution
CJD Bonn Castell
The Orion Nebula Cluster as seen by VLBI
Speakers
- Sergio Abraham DZIB QUIJANO
Primary authors
Co-authors
- Jan FORBRICH (University of Hertfordshire)
- O'Kelly EOIN (University of Hertfordshire)
- Konstantin GETMAN (Pennsylvania State University)
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Content
Magnetically active low-mass young stars can produce nonthermal radio emission with brightness temperatures well above 10**6 K, which can be detected with the VLBI technique. The Orion Nebula Cluster (ONC) contains a rich population of young stars, where thousands are low-mass stars. Radio observations have shown that in the core of the ONC about 600 of these low-mass stars are radio emitters. We initiated a VLBA campaign to study all these radio stars at very high angular resolution and uncovered that more than 100 stars are nonthermal radio emitters (the largest population of this kind discovered so far). In this talk, I will present the observed sample and the astrometric and photometric properties of detected stars.