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  • TeV blazar variability: the firehose instability? 
    SUBRAMANIAN, PRASAD; Shukla, Amit; Becker, Peter A. (Oxford University Press, 2012-06)
    Recently observed minute-time-scale variability of blazar emission at TeV energies has imposed severe constraints on jet models and TeV emission mechanisms. We focus on a robust jet instability to explain this variability. ...
  • Black hole spin dependence of general relativistic multi-transonic accretion close to the horizon 
    Das, Tapas K.; Nag, Sankhasubhra; HEGDE, SWATHI; Bhattacharya, Sourav; Maity, Ishita; Czerny, Bozena; Barai, Paramita; Wiita, Paul J.; Karas, Vladimir; Naskar, Tapan (Elsevier B.V., 2015-05)
    We introduce a novel formalism to investigate the role of the spin angular momentum of astrophysical black holes in influencing the behavior of low angular momentum general relativistic accretion. We propose a metric ...
  • Search for intermediate-mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo 
    LIGO Scientific Collaboration; Virgo Collaboration; KAGRA Collaboration; Abbott, R.; RAPOL, UMAKANT D.; SOURADEEP, TARUN et al. (EDP Sceicnes, 2022-03)
    Intermediate-mass black holes (IMBHs) span the approximate mass range 100-10(5) M-circle dot, between black holes (BHs) that formed by stellar collapse and the supermassive BHs at the centers of galaxies. Mergers of IMBH ...