Browsing Department of Physics by Author "Nandakumar, Meera"

Browsing Department of Physics by Author "Nandakumar, Meera"

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  • Bending waves in velocity space: A first look at the THINGS sample 
    Nandakumar, Meera; Narayan, Chaitra; Dutta, Prasun (Oxford University Press, 2022-06-01)
    Detection of bending waves is a highly challenging task even in nearby disc galaxies due to their sub-kpc bending amplitudes. However, simulations show that the harmonic bending of a Milky Way-like disc galaxy is associated ...
  • Large-scale turbulence cascade in the spiral galaxy NGC 6946 
    Nandakumar, Meera; Dutta, Prasun (Oxford University Press, 2023-10-05)
    The generation mechanism of compressible fluid turbulence at kiloparsec scales in the interstellar medium is a long-lasting puzzle. In this work, we explore the nature of large-scale turbulence in the external spiral galaxy ...
  • Probing galaxy evolution through Hi 21-cm emission and absorption: current status and prospects with square kilometre array 
    Dutta, Rajeshwari; Kurapati, Sushma; Aditya, J.N.H.S.; Bait, Omkar; Das, Mousumi; Dutta, Prasun; Indulekha, K.; Nandakumar, Meera; Patra, Narendra Nath; Roy, Nirupam; Roychowdhury, Sambit (Springer, 2022-12)
    One of the major science goals of square kilometre array (SKA) is to understand the role played by atomic hydrogen (Hi) gas in the evolution of galaxies throughout cosmic time. The hyperfine transition line of the hydrogen ...

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