Binary over-population among radio-detected Taurus–Auriga YSOs

Determine whether the set of 3 GHz Very Large Array Sky Survey detections among Taurus–Auriga young stellar objects is statistically over-populated by binary or multiple systems relative to the full Taurus–Auriga YSO population.

Background

Among the 33 detections, 13 are listed as binaries or higher-order multiples (approximately 39%), compared to an 18.5% multiplicity rate in the full sample, suggesting a potential over-representation of binaries among radio detections. However, multiplicity catalogs used in the analysis are incomplete and may undercount true multiples.

This uncertainty prevents a firm conclusion about whether binary systems are intrinsically more radio-detectable in Taurus–Auriga, leaving open the question of the role of binarity in radio luminosity and variability.