Further Studies of the Association of Planetary Nebula BMP J16135406 with Galactic Open Cluster NGC 6067

Vasiliki Fragkou, Quentin A. Parker, Albert A. Zijlstra, Lisa Crause, Laurence Sabin, Roberto Vázquez

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Abstract

Planetary Nebulae (PNe) that are physical members of Galactic open clusters are powerful probes that allow precise determination of their distance and crucially their initial mass on the main sequence. Here, we revisit the physical association of the PN BMP J1613–5406 with the open cluster NGC 6067 and present our preliminary results based on our new ESO/VLT FORS2 data. Our PN spectral data permit the calculation of a precise radial velocity and reddening to the PN that shows a tight consistency with the literature corresponding cluster parameters including importantly the radial velocity. Our measurements, combined with the agreement between the distances of the two objects and the fact that the PN is located well within the cluster boundaries, confirm that the PN is physically associated with the cluster. The cluster has a turn-off mass of around 5 solar masses that indicates a PN initial mass of around 5.6 solar masses. This is closer to the theoretical lower limit of core-collapse supernova formation than has ever been previously observed, providing a unique opportunity for further stellar and Galactic chemical evolution studies using this system.
Original languageEnglish
Pages (from-to)44
JournalGalaxies
Volume10
Issue number2
Early online date7 Mar 2022
DOIs
Publication statusPublished - 7 Mar 2022

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