Low-mass Stellar and Substellar Content of the Young Cluster Berkeley 59 Article Swipe
Neelam Panwar
,
C. Rishi
,
Saurabh Sharma
,
D. K. Ojha
,
M. R. Samal
,
Harinder P. Singh
,
Ram Kesh Yadav
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.3847/1538-3881/ad5552
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.3847/1538-3881/ad5552
We present a multiwavelength analysis of the young star cluster Berkeley 59, based on Gaia data and deep IR observations with the 3.58 m Telescopio Nazionale Galileo and Spitzer space telescope. The mean proper motion of the cluster is found to be μ α cos δ ∼ −0.63 mas yr −1 and μ δ ∼ −1.83 mas yr −1 , and the kinematic distance of the cluster, ∼1 kpc, is in agreement with previous photometric studies. The present data are the deepest available near-IR observations for the cluster so far and reach below 0.03 M ⊙ . The mass function of the cluster region is calculated using the statistically cleaned color–magnitude diagram and is similar to the Salpeter value for the member stars above 0.4 M ⊙ . In contrast, the slope becomes shallower (Γ ∼ 0.01 ± 0.18) in the mass range 0.04–0.4 M ⊙ , comparable to other nearby clusters. The spatial distribution of young brown dwarfs (BDs) and stellar candidates shows a nonhomogeneous distribution. This suggests that the radiation feedback from massive stars may be a prominent factor contributing to the BD population in the cluster Berkeley 59. We also estimated the star-to-BD ratio for the cluster, which is found to be ∼3.6. The Kolmogorov–Smirnov test shows that the stellar and BD populations significantly differ, and stellar candidates are nearer the cluster center compared to the BDs, suggesting mass segregation in the cluster toward the substellar mass regime.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3847/1538-3881/ad5552
- OA Status
- gold
- Cited By
- 4
- References
- 103
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4400956903
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4400956903Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3847/1538-3881/ad5552Digital Object Identifier
- Title
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Low-mass Stellar and Substellar Content of the Young Cluster Berkeley 59Work title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-07-24Full publication date if available
- Authors
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Neelam Panwar, C. Rishi, Saurabh Sharma, D. K. Ojha, M. R. Samal, Harinder P. Singh, Ram Kesh YadavList of authors in order
- Landing page
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https://doi.org/10.3847/1538-3881/ad5552Publisher landing page
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.3847/1538-3881/ad5552Direct OA link when available
- Concepts
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Physics, Brown dwarf, Content (measure theory), Astronomy, Cluster (spacecraft), Stellar mass, Astrophysics, Low Mass, Stars, Star formation, Programming language, Mathematical analysis, Mathematics, Computer scienceTop concepts (fields/topics) attached by OpenAlex
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4Total citation count in OpenAlex
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2025: 3, 2024: 1Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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