Planetary nebula candidates in extragalactic young star clusters

  title={Planetary nebula candidates in extragalactic young star clusters},
  author={S. Larsen and The Netherlands Astronomical Institute and Utrecht University and Astronomy Group and Universidad de Concepcion},
  journal={Astronomy and Astrophysics},
Context. During an analysis of optical spectra of 80 young star clusters in several nearby spiral galaxies, [Oiii] and [Nii] emission lines were noted in some cases. Three of these emission line sources are associated with clusters older than 30 Myr, and are identified as likely planetary nebula (PN) candidates. Aims. These objects may represent a rare opportunity to study PNe whose progenitor stars are known to be of intermediate masses, although detailed analysis is challenging because of the… 

Figures and Tables from this paper

Investigating potential planetary nebula/cluster pairs
Context. Fundamental parameters characterizing the end-state of intermediate-mass stars may be constrained by discovering planetary nebulae (PNe) in open clusters (OCs). Cluster membership may be
We present Hubble Space Telescope photometry and Keck spectroscopy of globular clusters (GCs) in the nearby S0 galaxy NGC 7457. The V – I color-magnitude diagram of GCs lacks the clear bimodality
Young Massive Star Clusters
Young massive clusters (YMCs) are dense aggregates of young stars that form the fundamental building blocks of galaxies. Several examples exist in the Milky Way Galaxy and the Local Group, but they
In Search of Possible Associations between Planetary Nebulae and Open Clusters
We consider the possibility of cluster membership for 13 planetary nebulae that are located in close proximity to open clusters lying in their lines of sight. The short lifetimes and low sample size
Constraining globular cluster formation through studies of young massive clusters – I. A lack of ongoing star formation within young clusters
We present a survey of 130 Galactic and extragalactic young massive clusters (YMCs, 10 4 < M/M⊙ < 10 8 , 10 < t/Myr < 1000) with integrated spectroscopy or resolved stellar photometry (40 presented
Metallicities of Young Massive Clusters in NGC 5236 (M83)
We present integrated-light spectra of 8 Young Massive Clusters (YMCs) in the metal-rich spiral galaxy NGC 5236 (M 83). The observations were taken with the X-Shooter spectrograph on the ESO Very
Planetary Nebulae: Sources of Enlightenment
  • K. Kwitter, R. Henry
  • Physics, Geology
    Publications of the Astronomical Society of the Pacific
  • 2022
In this review/tutorial we explore planetary nebulae as a stage in the evolution of low-to-intermediate-mass stars, as major contributors to the mass and chemical enrichment of the interstellar
Hubble Space Telescope Spectroscopy of a Planetary Nebula in an M31 Open Cluster: Hot-bottom Burning at 3.4 M ⊙
We use imaging and spectroscopy from the Hubble Space Telescope (HST) to examine the properties of a bright planetary nebula (PN) projected within M31's young open cluster B477-D075. We show that the
Study of NGC 5128 Globular Clusters Under Multivariate Statistical Paradigm
An objective classification of the globular clusters (GCs) of NGC 5128 has been carried out by using a model-based approach of cluster analysis. The set of observable parameters includes structural


Planetary nebulae as standard candles. I. Evolutionary models
Models of PNs are used here to simulate observations of an ensemble of PNs in order to study luminosity distributions in the emission lines of H-beta and forbidden O III 5007 A. The resulting
ASTROPHYSICS Young massive star clusters in nearby galaxies ⋆ II. Software tools, data reductions and cluster sizes
A detailed description is given of the data analysis leading to the discovery of young massive star clusters (YMCs) in a sample of 21 nearby galaxies. A new useful tool, ishape , for the derivation
Planetary nebulae as tracers of galaxy stellar populations
We address the general problem of the luminosity-specific planetary nebula (PN) number, better known as the 'a' ratio, given by a = N PN/L gal , and its relationship with the age and metallicity of
The structure and environment of young stellar clusters in spiral galaxies
A search for stellar clusters has been carried out in 18 nearby spiral galaxies, using archive images from the Wide Field Planetary Camera 2 on board the Hubble Space Telescope. All of the galaxies
The open cluster NGC 2818 and its associated planetary nebula
New CCD UBV photometry of the open cluster NGC 2818 central region indicates that previously derived values of distance and reddening for the cluster have been considerably overestimated, leading to
Extragalactic Globular Cluster Planetary Nebulae: Discovery of a Planetary Nebula in the NGC 5128 Globular Cluster G169 Using the Magellan I Baade Telescope*
We report the discovery of a planetary nebula in the globular cluster G169 of the giant elliptical galaxy NGC 5128, based on spectroscopy with the Magellan I Baade 6.5 m telescope at Las Campanas
Global properties of stellar populations and the spectral evolution of galaxies
Several relevant properties of evolving stellar populations are discussed from a theoretical viewpoint. These include the absolute and specific evolutionary flux of a stellar population, the relative
The Local Group Census: Planetary nebulae in IC 10, Leo A and Sextans A
In the framework of our narrow-band survey of the Local Group galaxies, we present the results of the search for planetary nebulae (PNe) in the dwarf irregular galaxies IC 10, Leo A and Sextans A.
Optical Spectroscopy of Metal-rich H II Regions and Circumnuclear Hot Spots in M83 and NGC 3351
We present optical spectroscopy of a sample of metal-rich extragalactic H II regions in the spiral galaxies M83 (NGC 5236), NGC 3351, and NGC 6384. The metal abundance, estimated from semiempirical
Evolution of Planetary Nebulae I. An improved synthetic model
We present a new synthetic model to follow the evolution of a planetary nebula (PN) and its central star, starting from the onset of AGB phase up to the white dwarf cooling sequence. The model