Search for associations containing young stars: chemical tagging IC 2391 and the Argus association

摘要: We explore the possible connection between open cluster IC 2391 and unbound Argus association identified by SACY survey. In addition to common kinematics ages these two systems, here we their chemical abundance patterns confirm if substructures shared a origin. carry out homogenous high-resolution elemental study of eight confirmed members as well six using UVES spectra. derive spectroscopic stellar parameters abundances for Fe, Na, Mg, Al, Si, Ca, Ti, Cr, Ni Ba. All stars in were found share similar with scatter within uncertainties, where [Fe/H] = -0.04 +/-0.03 -0.06 +/-0.05 stars. Effects over-ionisation/excitation seen cooler than roughly 5200K previously noted literature. Also, enhanced Ba around 0.6 dex observed both systems. The ages, strongly support that originated from 2391. Simple modeling this system find dissolution be consistent two-body interactions.