Galactic metallicity gradients with PNe Virtual Observatory Resource

Authors
  1. Bucciarelli B.
  2. Stanghellini L.
  3. Published by
    CDS
Abstract

We study the population of Galactic planetary nebulae (PNe) and their central stars (CSs) through the analysis of their distances and Galactic distribution. The PN distances are obtained by means of a revised statistical distance scale, based on an astrometrically-defined sample of CSs from Gaia DR3 as calibrators. The new statistical distances, together with the proper motion of the CSs - also from DR3, and with published PN abundances as well as radial velocities, are used to characterize the PN populations in the Galaxy, and to derive the radial metallicity gradient. The statistical scale is applied to infer distances of a significant number (~850) of Galactic PNe, for which we deliver a new catalog of PN distances. By adopting a circular velocity curve of the Galaxy, we also obtain peculiar 3D velocities for a large sample of PNe (~300). Elemental abundances of the PNe are culled from the literature for an updated catalog, to be used in our analysis and other external applications. The radial chemical gradient of the Galactic Disk is traced by PNe with available chemical abundances and distances, and kinematic data of the CSs are employed to identify the Halo PN population.We date PN progenitors based both on abundances and on kinematic properties, finding a confirmation of the first method with the second. For all PNe with at least one oxygen determination in the literature, we find a slope of the radial oxygen gradient equal to {DELTA}log(O/H)/{DELTA}RG=-0.0144+/-0.00385 [dex/kpc]. Furthermore, we estimate radial oxygen gradients for the PNe with old (>7.5Gyr) and young (<1Gyr) progenitors to be respectively {DELTA}log(O/H)/{DELTA}RG=-0.0121+/-0.00465 and -0.022+/-0.00758 [dex/kpc], thus disclosing a mild steepening of the gradient since Galaxy formation, with a slope change of 0.01dex. The time evolution is slightly higher (~0.015dex) if we select the best available abundances in the literature. This result is in broad agreement with previous PN results, but now based on DR3 Gaia analysis, and also in agreement with what traced by most other Galactic probes. We also find a moderate oxygen enrichment when comparing the PNe with young and old progenitors.

Keywords
  1. milky-way-galaxy
  2. planetary-nebulae
  3. chemical-abundances
  4. stellar-distance
  5. visible-astronomy
  6. trigonometric-parallax
Bibliographic source Bibcode
2023A&A...680A.104B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/680/A104
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/680/A104

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/680/A104
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/680/A104
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/680/A104
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/680/A104/table4?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/680/A104/table4?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/680/A104/table4?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/680/A104/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/680/A104/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/680/A104/table3?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/680/A104/table5?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/680/A104/table5?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/680/A104/table5?

History

2023-12-19T07:58:49Z
Resource record created
2023-12-19T07:01:14Z
Updated
2023-12-19T07:58:49Z
Created

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr