Cluster aggregates surrounding Pismis 5 in the Vela Molecular Ridge
arXiv:2304.00226 · doi:10.1051/0004-6361/202244737
Abstract
Context. In the Gaia era, the precision of astrometric data is unprecedented. High-quality data make it easier to find more cluster aggregates and support further confirmation of these open clusters. Aims. We use Gaia DR3 to redetermine the open clusters surrounding Pismis 5 in the Vela Molecular Ridge. We also investigate the basic properties of these clusters. Methods. We apply two clustering algorithms (StarGO and pyUPMASK) to identify the open cluster members in a five-dimensional space with Gaia DR3. Results. We identify eight open clusters surrounding Pismis 5 in the Vela Molecular Ridge. The open cluster QZ 1 is newly discovered. Through investigating the comprehensive properties of the clusters, one open binary cluster candidate (Alessi 43 and Collinder 197) and one triple open cluster candidate (Pismis 5, Pismis 5A, and Pismis 5B) are discussed. Conclusions. Binary and triple open cluster candidates have been identified as potential primordial aggregates based on their similar age, position, and motion. According to kinematic speculations, the two aggregate candidates will gradually separate, and their interiors will slowly disintegrate.
arXiv comment10 pages, 7 figures
References in corpus (46)
- SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
- Astropy: A Community Python Package for Astronomy
- Gaia Data Release 2. Summary of the contents and survey properties
- On the variation of the Initial Mass Function
- The Gaia mission
- PARSEC: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code
- Binary companions of evolved stars in APOGEE DR14: Search method and catalog of ~5,000 companions
- Embedded Clusters in Molecular Clouds
- Gaia Data Release 2: The astrometric solution
- galpy: A Python Library for Galactic Dynamics
- Gaia Early Data Release 3: The astrometric solution
- Star Clusters Across Cosmic Time
- Improving PARSEC models for very low mass stars
- Estimating distances from parallaxes
- Gaia Early Data Release 3 -- Catalogue validation
- Gaia Data Release 3 Properties and validation of the radial velocities
- Updated parameters of 1743 open clusters based on Gaia DR2
- Clusters and mirages: cataloguing stellar aggregates in the Milky Way
- Using the minimum spanning tree to trace mass segregation
- A catalog of newly identified star clusters in GAIA DR2
- UPMASK: unsupervised photometric membership assignment in stellar clusters
- Gaia Data Release 3: Mapping the asymmetric disc of the Milky Way
- Discovery of Tidal Tails in Disrupting Open Clusters: Coma Berenices and a Neighbor Stellar Group
- The nature of the young and low-mass open clusters Pismis5, vdB80, NGC1931 and BDSB96
- 3D Morphology of Open Clusters in the Solar Neighborhood with Gaia EDR3: its Relation to Cluster Dynamics
- Double or binary: on the multiplicity of open star clusters
- The extended halo of NGC 2682 (M 67) from Gaia DR2
- Hunting for Neighboring Open Clusters with Gaia DR3: 101 New Open Clusters within 500 pc
- Newly detected open clusters in the Galactic disk using Gaia EDR3
- StarGO: A New Method to Identify the Galactic Origins of Halo Stars
- pyUPMASK: an improved unsupervised clustering algorithm
- 3D Morphology of Open Clusters in the Solar Neighborhood with Gaia EDR3 II: Hierarchical Star Formation Revealed by Spatial and Kinematic Substructures
- Diagnosing the Stellar Population and Tidal Structure of the Blanco1 Star Cluster
- Modelling unresolved binaries of open clusters in color-magnitude diagram. I. method and application of NGC3532
- The dynamical fate of binary star clusters in the Galactic tidal field
- The Evolution of Primordial Binary Open Star Clusters: Mergers, Shredded Secondaries and Separated Twins
- Do the majority of stars form as gravitationally unbound?
- Mass function and dynamical study of the open clusters Berkeley 24 and Czernik 27
- Extended Tidal Tails of IC 4756 detected by {\it Gaia} EDR3
- Dense cores and star formation in the giant molecular cloud Vela~C
- MiSTree: a Python package for constructing and analysing Minimum Spanning Trees
- Aggregates of clusters in the Gaia data
- Low mass star formation and subclustering in the HII regions RCW 32, 33 and 27 of the Vela Molecular Ridge. A photometric diagnostics to identify M-type stars
- The Formation of Binary Star Clusters in the Milky Way and Large Magellanic Cloud
- FEDReD III : Unraveling the 3D structure of Vela
- The BLAST Survey of the Vela Molecular Cloud: Dynamical Properties of the Dense Cores in Vela-D