Discovery of a New Molecular Bubble–Outflow Structure in the Taurus B18 Cloud

Abstract Star formation can produce bubbles and outflows, as a result of stellar feedback. Outflows inject momentum energy into the surrounding interstellar medium, so are related to overall balance molecular cloud. Molecular be resolved by higher-resolution radio telescopes quantify effect star on clouds. We report here identification new bubble with an outflow, Herbig–Haro object, HH 319, located at center. Multiwavelength data have been utilized study its spatial structure, injection, dynamical timescale. This has kinetic 5.8 × 10 43 erg within smallest radius in Taurus, 0.077 pc. The formed ∼70,000 yr ago. According proper-motion velocities protostars from Gaia EDR3, T Tauri binary stars (FY Tau FZ Tau) southwest edge may produced outflow–bubble structure. is unusual structure found low- intermediate-mass regions. Only Orion A, driven V380 Ori, similar bubble–outflow provides additional observational evidence for theory wind stars. It enhances our understanding how feedback acts