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Browsing by Author "Sharma, K"

Browsing by Author "Sharma, K"

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  • Application of convolutional neural networks for stellar spectral classification 
    Sharma, K; Kembhavi, Ajit; Kembhavi, Aniruddha; Sivarani, T; Abraham, Sheelu; Vaghmare, Kaustubh (Oxford University Press on behalf of the Royal Astronomical Society, 2020-01)
    Due to the ever-expanding volume of observed spectroscopic data from surveys such as SDSS and LAMOST, it has become important to apply artificial intelligence (AI) techniques for analysing stellar spectra to solve spectral ...
  • Detecting Outliers in SDSS using Convolutional Neural Network 
    Sharma, K; Kembhavi, Ajit; Kembhavi, Aniruddha; Sivarani, T; Abraham, S. (Societe Royale des Sciences de Liege, 2019-10)
    We propose an automated algorithm based on Convolutional Neural Network (CNN) for the detection of peculiar objects in large databases using their spectral observations. A convolutional neural network is a class of ...
  • The hot γ Doradus and Maia stars 
    Balona, L. A; Engelbrecht, C. A; Joshi, Y. C; Joshi, S; Sharma, K; Semenko, E; Pandey, G; Chakradhari, N. K; Mkrtichian, D; Hema, B. P; Nemec, J. M (Oxford University Press on behalf of the Royal Astronomical Society, 2016-09)
    The hot γ Doradus stars have multiple low frequencies characteristic of γ Dor or SPB variables, but are located between the red edge of the SPB and the blue edge of the γ Dor instability strips where all low-frequency ...
  • Quasi-periodic spicule-like cool jets driven by Alfvén pulses 
    Singh, B; Srivastava, A. K; Sharma, K; Mishra, S. K; Dwivedi, B. N (Oxford University Press on behalf of Royal Astronomical Society, 2022-04)
    We perform a 2.5D magnetohydrodynamic simulation to gain a comprehensive understanding of the formation of spicule-like cool jets caused by initial transverse velocity pulses akin to Alfven´ pulses in the solar chromosphere. ...

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