Determination of dynamical ages of open clusters through the A+ parameter – I Article Swipe
Khushboo K Rao
,
Kaushar Vaidya
,
Manan Agarwal
,
Souradeep Bhattacharya
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.1093/mnras/stab2894
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.1093/mnras/stab2894
The sedimentation level of blue straggler stars (BSS) has been shown to be a great tool to investigate the dynamical states of globular clusters (GCs). The area enclosed between the cumulative radial distributions of BSS and a reference population up to the half-mass radius of the clusters, $A^+_{\mathrm{rh}}$, is known to be a measure of the sedimentation of BSS in GCs. In this work, we calculate $A^+_{\mathrm{rh}}$ for 11 open clusters (OCs) using a combined list of main-sequence turn-off stars, sub-giant branch stars, and red giant branch stars as reference population. The BSS, the reference populations, and the cluster members are identified using the proper motions and parallaxes from the Gaia DR2 data. In a subset of clusters, the BSS are confirmed cluster members on the basis of radial velocity information available in the literature. Using the Pearson and Spearman rank correlation coefficients, we find weak correlations between the estimated values of $A^+_{\mathrm{rh}}$ and other markers of dynamical ages of the clusters, i.e. the number of central relaxations a cluster has experienced since its formation, and the structural parameters of the clusters. Based on statistical tests, we find that these correlations are similar to the corresponding correlations among the less evolved GCs, albeit within large errors.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1093/mnras/stab2894
- OA Status
- green
- Cited By
- 15
- References
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- Related Works
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- OpenAlex ID
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https://openalex.org/W3204596795Canonical identifier for this work in OpenAlex
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https://doi.org/10.1093/mnras/stab2894Digital Object Identifier
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Determination of dynamical ages of open clusters through the A+ parameter – IWork title
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articleOpenAlex work type
- Language
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enPrimary language
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2021Year of publication
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2021-10-06Full publication date if available
- Authors
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Khushboo K Rao, Kaushar Vaidya, Manan Agarwal, Souradeep BhattacharyaList of authors in order
- Landing page
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https://doi.org/10.1093/mnras/stab2894Publisher landing page
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YesWhether a free full text is available
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greenOpen access status per OpenAlex
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https://arxiv.org/pdf/2102.07409Direct OA link when available
- Concepts
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Physics, Stars, Blue straggler, Globular cluster, Astrophysics, Cluster (spacecraft), Spearman's rank correlation coefficient, Open cluster, RADIUS, Star cluster, Population, Rank (graph theory), Statistics, Combinatorics, Mathematics, Demography, Computer security, Sociology, Programming language, Computer scienceTop concepts (fields/topics) attached by OpenAlex
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15Total citation count in OpenAlex
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2025: 1, 2024: 4, 2023: 3, 2022: 6, 2021: 1Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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| best_oa_location.raw_type | text |
| best_oa_location.license_id | |
| best_oa_location.is_accepted | False |
| best_oa_location.is_published | False |
| best_oa_location.raw_source_name | |
| best_oa_location.landing_page_url | http://arxiv.org/abs/2102.07409 |
| primary_location.id | doi:10.1093/mnras/stab2894 |
| primary_location.is_oa | False |
| primary_location.source.id | https://openalex.org/S195663288 |
| primary_location.source.issn | 0035-8711, 1365-2966, 1365-8711 |
| primary_location.source.type | journal |
| primary_location.source.is_oa | False |
| primary_location.source.issn_l | 0035-8711 |
| primary_location.source.is_core | True |
| primary_location.source.is_in_doaj | True |
| primary_location.source.display_name | Monthly Notices of the Royal Astronomical Society |
| primary_location.source.host_organization | https://openalex.org/P4310311648 |
| primary_location.source.host_organization_name | Oxford University Press |
| primary_location.source.host_organization_lineage | https://openalex.org/P4310311648, https://openalex.org/P4310311647 |
| primary_location.source.host_organization_lineage_names | Oxford University Press, University of Oxford |
| primary_location.license | |
| primary_location.pdf_url | |
| primary_location.version | publishedVersion |
| primary_location.raw_type | journal-article |
| primary_location.license_id | |
| primary_location.is_accepted | True |
| primary_location.is_published | True |
| primary_location.raw_source_name | Monthly Notices of the Royal Astronomical Society |
| primary_location.landing_page_url | https://doi.org/10.1093/mnras/stab2894 |
| publication_date | 2021-10-06 |
| publication_year | 2021 |
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| abstract_inverted_index.and | 36, 84, 97, 107, 139, 154, 176 |
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| abstract_inverted_index.GCs. | 61 |
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| corresponding_author_ids | https://openalex.org/A5088423597, https://openalex.org/A5090758522, https://openalex.org/A5084207012 |
| countries_distinct_count | 1 |
| institutions_distinct_count | 4 |
| corresponding_institution_ids | https://openalex.org/I59781447, https://openalex.org/I74796645 |
| sustainable_development_goals[0].id | https://metadata.un.org/sdg/14 |
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| sustainable_development_goals[0].display_name | Life below water |
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