3 papers
astro-ph.SR2025
VLBA Detections in the Oph-S1 Binary System near Periastron Confirmation of its Orbital Elements and Mass
Jazmín Ordóñez-Toro, Sergio A. Dzib, Laurent Loinard +7
Oph-S1 is the most luminous and massive stellar member of the nearby Ophiuchus star-forming region. Previous Very Long Baseline Array (VLBA) observations have shown it to be an int…
astro-ph.SR2025
The arc-shaped radio source at the center of NGC 6334A: Is it a colliding wind region of two young massive stars or the bow shock of a runaway star?
Vanessa Yanza, Sergio A. Dzib, Aina Palau +4
New multi-wavelength Karl G. Jansky VLA observations of CKR02A, the compact radio source in the center of the compact HII region NGC 6334A, are presented. The observations were car…
astro-ph.SR2024
Dynamical mass of the Ophiuchus intermediate-mass stellar system S1 with DYNAMO-VLBA
Jazmín Ordóñez-Toro, Sergio A. Dzib, Laurent Loinard +8
We 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 sy…