The physical association of planetary nebula NGC 2818 with open cluster NGC 2818A

Abstract

Planetary nebulae (PNe) that are physical members of open star clusters (OCs) are valuable for stellar evolution studies. They are extremely rare, with only three such instances confirmed in our Galaxy. Here, we confirm the physical association of PN NGC 2818 with OC NGC 2818A, an association long debated in the literature, adding a fourth object to the sample of rare OC-PN pairs. The physical properties of the PN can then be linked to those of its progenitor star. Using GHOST/Gemini high-resolution nebular spectra, we measured the PN systemic radial velocity to compare it with that of the putative host cluster, determined from Gaia. We estimated the physical parameters of both the OC and the PN using our data, together with estimates from previous studies and theoretical cluster isochrones and evolutionary tracks to show they are compatible. The precise, systemic radial velocity of the PN that was determined, is consistent among the errors with that of the OC and its 1 km/s associated velocity dispersion, a primary requirement for cluster membership. We have determined other physical parameters of the PN and the OC, such as age and distance, which also match within the errors. These results present compelling evidence for the physical association of the PN and the OC. The PN age was found to be 11 kyr and the effective temperature of its central star was estimated as 130 kK. The initial and final masses of the progenitor star were determined to be 2.33$\pm$0.10 Msol and 0.58$\pm$0.10 Msol respectively. We plotted the resulting data point on the latest initial-to-final-mass relation. This new data point agrees with the previously published trends and further delineates the 'kink' found at relatively low initial masses. All four OC-PN associations, identified thus far, share a number of common properties. These rare cases merit detailed OC-PN studies and work to further extend the sample.

arXiv comment11 pages, 6 figures, 3 tables

References in corpus (51)

• The Gaia mission
• PARSEC: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code
• Estimating distances from parallaxes. V: Geometric and photogeometric distances to 1.47 billion stars in Gaia Early Data Release 3
• The VizieR database of Astronomical Catalogues
• A new generation of PARSEC-COLIBRI stellar isochrones including the TP-AGB phase
• Global survey of star clusters in the Milky Way II. The catalogue of basic parameters
• A Gaia DR2 view of the Open Cluster population in the Milky Way
• PyNeb: a new tool for analyzing emission lines. I. Code description and validation of results
• Improving PARSEC models for very low mass stars
• PARSEC evolutionary tracks of massive stars up to $350M_{\odot }$ at metallicities 0.0001$\le Z\le$0.04
• New models for the evolution of Post-Asymptotic Giant Branch stars and Central Stars of Planetary Nebulae
• Post-Asymptotic Giant Branch Evolution of Low- and Intermediate-Mass Stars. Preliminary Results
• The Aao/Ukst Supercosmos H-alpha Survey (SHS)
• Stellar yields from metal-rich asymptotic giant branch models
• The White Dwarf Initial-Final Mass Relation for Progenitor Stars From 0.85 to 7.5 M${}_{\odot }$
• Evolution of Thermally Pulsing Asymptotic Giant Branch Stars I. The COLIBRI Code
• Updated parameters of 1743 open clusters based on Gaia DR2
• Age determination for 269 $Gaia$ DR2 Open Clusters
• A catalog of newly identified star clusters in GAIA DR2
• Constraining the thermally-pulsing asymptotic giant branch phase with resolved stellar populations in the Small Magellanic Cloud
• The Hα surface brightness - radius relation: a robust statistical distance indicator for planetary nebulae
• Improving the open cluster census. III. Using cluster masses, radii, and dynamics to create a cleaned open cluster catalogue
• Shape: A 3D Modeling Tool for Astrophysics
• Constraining the thermally pulsing asymptotic giant branch phase with resolved stellar populations in the Large Magellanic Cloud
• The Galactic structure and chemical evolution traced by the population of planetary nebulae
• The Magellanic Cloud Calibration of the Galactic Planetary Nebula Distance Scale
• 3D kinematics and age distribution of the Open Cluster population
• HASH: the Hong Kong/AAO/Strasbourg H-alpha planetary nebula database
• Binarity and the abundance discrepancy problem in planetary nebulae
• Carbon star formation as seen through the non-monotonic initial-final mass relation
• A catalogue of integrated H-alpha fluxes for 1,258 Galactic planetary nebulae
• Extended Main Sequence Turnoffs in Open Clusters as Seen by Gaia: I. NGC 2818 and the Role of Stellar Rotation
• Central Stars of Planetary Nebulae: New spectral classifications and catalogue
• Evolution of the local spiral structure of the Milky Way revealed by open clusters
• Photometric binaries, mass functions, and structural parameters of 78 Galactic open clusters
• Diameters of Open Star Clusters
• The Progenitors and Lifetimes of Planetary Nebula
• A machine learning-based tool for open cluster membership determination in Gaia DR3
• Membership lists for 431 open clusters in Gaia DR2 using extreme deconvolution gaussian mixture models
• PHR1315-6555: a bipolar planetary nebula in the compact Hyades-age open cluster ESO96-SC04
• Integrated parameters of star clusters: A comparison of theory and observations
• In Search of Possible Associations between Planetary Nebulae and Open Clusters
• The Planetary Nebula in the 500 Myr old Open Cluster M37
• Spitzer mid-infrared spectroscopic observations of planetary nebulae
• Bubbles and Knots in the Kinematical Structure of the Bipolar Planetary Nebula NGC 2818
• Discovery of an open cluster with a possible physical association with a planetary nebula
• Catalog of Planetary Nebulae detected by GALEX and corollary optical surveys
• A high-mass Planetary Nebula in a Galactic Open Cluster
• Tracing the Galactic Disk with Planetary Nebulae using Gaia DR3
• UOCS-IX. AstroSat/UVIT study of the open cluster NGC 2818: Blue Stragglers, Yellow Stragglers, Planetary Nebula, and their membership
• Binary-driven stellar rotation evolution at the main-sequence turn-off in star clusters

Cited by in corpus (1)

• The secular evolution of planetary nebula IC 418 and its implications for carbon star formation