Molecular Jets in the CMa-l224 Star-forming Region with VLT/KMOS

Dominika Itrich, Agata Karska, Suzanne Ramsay, Marta Sewiło, Lars Kristensen, Gregory J. Herczeg, William J. Fischer, Beata Deka-Szymankiewicz

The formation of low-mass stars is associated with many energetic processes. The most spectacular ones are collimated jets generating shock waves that compress and heat the gas to hundreds or thousands of Kelvins. Jets have been characterized mostly for nearby star-forming regions (<450 pc) which span very uniform environments (Davis et al., 2011). The CMa-l224 region is an active star-formation site located in the outer Galaxy (at a distance of ∼1 kpc, Sewiło et al. 2019), where environment differs from the inner part of the Galactic plane. Here, we present preliminary results of the analysis of the images and spectra of 120 young stellar objects in CMa-l224 obtained with the VLT/KMOS (1.9 - 2.4 μm). Ten sources are associated with the extended H₂ emission tracing jets. Determination of the jet properties is the first step toward understanding the impact of the environment on star formation.

Proceedings of the Polish Astronomical Society, vol. 10, 173-176 (2020)

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