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Browsing by Author "Mousumi Das"

Browsing by Author "Mousumi Das"

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  • Template-based classification of SDSS-GALEX point sources 
    Anjum, A; Mousumi Das; Murthy, J; Gudennavar, S. B; Rajesh, G; Bubbly, S. G (Indian Academy of Sciences, 2018-10)
    We have classified a sample of 37,492 objects from SDSS into QSOs, galaxies and stars using photometric data over five wave bands (u, g, r, i and z) and UV GALEX data over two wave bands (near-UV and far-UV) based on a ...
  • Tracing the Dynamical Mass in Galaxy Disks Using H i Velocity Dispersion and Its Implications for the Dark Matter Distribution in Galaxies 
    Mousumi Das; McGaugh, S. S; Ianjamasimanana, Roger; Schombert, James; Dwarakanath, K. S (IOP Publishing, 2020-01-20)
    We present a method to derive the dynamical mass of face-on galaxy disks using their neutral hydrogen (H i) velocity dispersion (σ H i ). We have applied the method to nearby, gas-rich galaxies that have extended H i gas ...
  • Tracing the evolution of ultraluminous infrared galaxies into radio galaxies with low frequency radio observations 
    Nandi, S; Mousumi Das; Dwarakanath, K. S (Oxford University Press on behalf of the Royal Astronomical Society, 2021-06)
    We present radio observations of ultraluminous infrared galaxies (ULIRGs) using the Giant Metrewave Radio Telescope (GMRT) and combine them with archival multifrequency observations to understand whether ULIRGs are the ...
  • A triple active galactic nucleus in the NGC 7733–7734 merging group 
    Yadav, Jyoti; Mousumi Das; Barway, Sudhanshu; Combes, Francoise (EDP Sciences, 2021-07)
    Context. Galaxy interactions and mergers can lead to supermassive black hole (SMBH) binaries, which become active galactic nucleus (AGN) pairs when the SMBHs start accreting mass. If there is a third galaxy involved in the ...
  • Understanding galaxy mergers and AGN feedback with UVIT 
    Rubinur, K; Mousumi Das; Kharb, Preeti; Rahne, P. T (Cambridge University Press, 2021-01)
    Simulations expect an enhanced star-formation and active galactic nuclei (AGN) activity during galaxy mergers, which can lead to formation of binary/dual AGN. AGN feedback can enhance or suppress star-formation. We have ...
  • A UVIT Look at Star Formation in Nearby Interacting/Merging Galaxies 
    Mousumi Das (Cambridge University Press on behalf of International Astronomical Union, 2023)
    The interactions and mergers of gas rich galaxies are known to produce star formation which often leads to nuclear activity as well. The star formation is ideally mapped using FUV and NUV emission, since UV traces star ...
  • VLBI imaging of the double peaked emission line seyfert KISSR 1494 
    Kharb, P; Mousumi Das; Paragi, Z; Subramanian, S; Pradeep Chitta, L (IOP Publishing, 2015-02-01)
    We present here the results from dual-frequency phase-referenced Very Long Baseline Interferometry observations of the Seyfert galaxy KISSR 1494, which exhibits double peaked emission lines in its Sloan Digital Sky Survey ...

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