Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Singh, Raghubar"'
Publikováno v:
ApJ Letters 2024
This paper presents results from Kepler photometric light curves and high-resolution spectroscopic study of a super Li-rich giant KIC11087027. Using the light curve analysis, we measured the star's rotational period P$_{\rm rot}$=30.4$\pm$0.1~days, w
Externí odkaz:
http://arxiv.org/abs/2408.05931
Publikováno v:
The Astrophysical Journal Letters 944(1) L5 2023
In this work, we studied the distribution of lithium abundances in giants as a function of stellar mass. We used a sample of 1240 giants common among Kepler photometric and LAMOST medium resolution (R $\approx$ 7500) spectroscopic survey fields. The
Externí odkaz:
http://arxiv.org/abs/2301.10436
We report novel observational evidence on the evolutionary status of lithium-rich giant stars by combining asteroseismic and lithium abundance data. Comparing observations and models of the asteroseismic gravity-mode period spacing $\Delta\Pi_{1}$, w
Externí odkaz:
http://arxiv.org/abs/2104.12070
Given the implications for the origin of Li enhancement in red giants we have reviewed Li-rich classification of KIC~9821622, the only bonafide RGB giant with He inert-core till date, reported as a Li-rich giant by reanalyzing the high-resolution spe
Externí odkaz:
http://arxiv.org/abs/1911.05243
In this letter, we report the discovery of 24 new super Li-rich (A(Li) $\ge$ 3.2) giants of He-core burning phase at red clump region. Results are based on systematic search of a large sample of about 12,500 giants common to the LAMOST spectroscopic
Externí odkaz:
http://arxiv.org/abs/1906.03198
Akademický článek
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In this paper, we report the discovery of two new super Li-rich K giants: HD~24960 and TYC~1751-1713-1. Based on high resolution ($R\approx 60,000$) spectroscopy, we have derived Li abundance of A(Li)$\approx$4.0~dex for both stars. Other elemental a
Externí odkaz:
http://arxiv.org/abs/1810.12509
In this paper we report two new super Li-rich K giants: KIC 2305930 and KIC 12645107 with Li abundances exceeding that of ISM (A(Li) $\geq$ 3.2 dex). Importantly, both the giants have been classified as core He-burning red clump stars based on astero
Externí odkaz:
http://arxiv.org/abs/1804.10955
Autor:
Singh, Raghubar Prasad
The process of raising the standard of living and economic security of rural residents is known as rural development. 68.84% of people, as per the 2011 Census, reside in villages. The rural sector's sluggishness would be a significant barrier to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ad7fb573bcad566df644a23c5aad549
Publikováno v:
Astrophysical Journal Letters; 2/10/2023, Vol. 944 Issue 1, p1-8, 8p
