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Browsing by Author "Meenakshi, P"

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Abundances of neutron-capture elements in CH and carbon-enhanced metal-poor (CEMP) stars

Meenakshi, P; Goswami, A (Indian Academy of Sciences, 2020-12)

All the elements heavier than Fe are produced either by the slow (-s) or rapid (-r) neutron-capture process. The neutron density prevailing in the stellar sites is one of the major factors that determines the type of ...
Chemical analysis of CH stars – III. Atmospheric parameters and elemental abundances

Meenakshi, P; Goswami, A; Goswami, P. P; Shejeelammal, J; Masseron, T (Oxford University Press on behalf of the Royal Astronomical Society, 2019-07)

Elemental abundances of CH stars can provide observational constraints for theoretical studies on the nucleosynthesis and evolution of low- and intermediate-mass stars. However, available abundance data in literature are ...
Chemical analysis of three barium stars: HD 51959, HD 88035, HD 121447

Drisya, K; Goswami, A; Sridhar, N; Masseron, T; Meenakshi, P (Oxford University Press on behalf of the Royal Astronomical Society, 2018-05)

We present elemental abundance results from high-resolution spectral analysis of three nitrogen-enhanced barium stars. The analysis is based on spectra obtained with the fibre- fed extended range optical spectrograph ...
Chemical Analysis of Two Extremely Metal-poor Stars HE 2148-2039 and HE 2155-2043

Meenakshi, P; Goswami, A (IOP Publishing, 2021-05-01)

We present elemental abundance results for HE 2148−2039 and HE 2155−2043 based on a detailed high-resolution spectroscopic analysis. The high-resolution Subaru/High Dispersion Spectrograph (HDS) spectra used for our analysis ...
Classification and characterization using HCT/HFOSC spectra of carbon stars selected from the HES survey

Meenakshi, P; Goswami, A (Springer, 2024-01)

We present results from the analysis of 88 carbon stars selected from Hamburg/ESO (HES) survey using low-resolution spectra (R ∼1330 & 2190). The spectra were obtained with the Himalayan Faint Object Spectrograph Camera ...
High-resolution spectral analysis of three high-latitude carbon stars

Meenakshi, P; Dutta, Debasish; Goswami, A; Kartha, Sreeja S (Cambridge University Press on behalf of Astronomical Society of Australia, 2025-04)

We present the results of a detailed high-resolution spectroscopic analysis (SUBARU/HDS spectra, R ∼50,000) of three faint high-latitude carbon stars HE 1104 − 0957, HE 1205 − 0521, and HE 1244 − 3036. Our estimated ...
LAMOST J045019.27 + 394758.7, with peculiar abundances of N, Na, V, Zn, is possibly a Sculptor dwarf galaxy escapee

Meenakshi, P; Goswami, A; Shejeelammal, J; Sonamben, Mayani; Pawar, Ganesh; Mkrtichian, David; Doddamani, Vijayakumar H; Joshi, Santosh (Oxford University Press on behalf of Royal Astronomical Society, 2022-07)

We present the results of the high-resolution (R ∼ 60 000) spectroscopic analysis of the star LAMOSTJ045019.27 + 394758.7 (hereafter J045) from the list of carbon stars of LAMOST DR2. From our analysis, we find that J045 ...
Observational Evidence Points at AGB Stars as Possible Progenitors of CEMP-s and CEMP-r/s Stars

Meenakshi, P; Goswami, A (IOP Publishing, 2021-11-20)

The origin of enhanced abundance of heavy elements observed in the surface chemical composition of carbonenhanced metal-poor (CEMP) stars still remains poorly understood. Here, we present detailed abundance analysis of ...
Spectroscopic study of the Carbon-Enhanced Metal-Poor star: HE 0110-0406

Meenakshi, P; Goswami, A; Doddamani, V. H (Societe Royale des Sciences de Liege, 2019-10)

The halo system of the Milky way comprises the vast majority of the presently observed metal-poor ([Fe/H] <1.0) and very metal-poor ([Fe/H] <2.0) stars. A sizable fraction (~ 30%) of the metal-poor stars with carbon ...

Browsing by Author "Meenakshi, P"

Browsing by Author "Meenakshi, P"

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