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  • Statistical study of network jets observed in the solar transition region: a comparison between coronal holes and quiet-sun regions 
    Narang, Nancy; Arbacher, R. T; Tian, H; Banerjee, D; Cranmer, S. R; DeLuca, Ed E; McKillop, S (Springer, 2014-04)
    Recent IRIS observations have revealed a prevalence of intermittent small-scale jets with apparent speeds of 80 – 250 km s−1, emanating from small-scale bright regions inside network boundaries of coronal holes. We find ...
  • A statistical study of plasmoids associated with a post-CME current sheet 
    Ritesh Patel; Pant, Vaibhav; Chandrashekhar, K; Banerjee, D (EDP Sciences, 2020-12)
    Context. Coronal mass ejections (CMEs) are often observed to be accompanied by flare, current sheets, and plasmoids/plasma blobs. 2D and 3D numerical simulations and observations reported plasmoids moving upward as well ...
  • A statistical study of solar radio Type III bursts and spaceweather implication 
    Ndacyayisenga, T; Uwamahoro, J; Raja, K. S; Monstein, C (Elsevier B.V, 2021-02-15)
    olar radio bursts (SRBs) are the signatures of various phenomenon that happen in the solar corona and interplanetary medium (IPM). In this article, we have studied occurrence of Type III bursts and their association with ...
  • A statistical study of the characteristics of type II doublet radio bursts 
    Subramanian, K. R; Ebenezer, E (EDP Sciences, 2006-05)
    Aims.We study the characteristics of doublet type II radio bursts in which two type II bursts occur in sequence and investigate their drivers. Methods.37 type II bursts reported by the Culgoora radio observatory in the ...
  • A statistical study of wave propagation in coronal holes 
    O`Shea, E; Banerjee, D; Doyle, J. G (Astronomy and Astrophysics, Vol. 463, pp. 713 - 725, 2007-02)
    Aims.To find evidence for propagating magnetoacoustic waves in equatorial and polar coronal hole locations. Methods: Using temporal series data from the Coronal Diagnostic Spectrometer (CDS) on SOHO, we study oscillations ...
  • A Statistical Study on the Frequency-dependent Damping of the Slow-mode Waves in Polar Plumes and Interplumes 
    Mandal, Sudip; Krishna Prasad, S; Banerjee, D (IOP Publishing, 2018-02)
    We perform a statistical study on the frequency-dependent damping of slow waves propagating along polar plumes and interplumes in the solar corona. Analysis of a large sample of extreme ultraviolet imaging data with ...
  • Statistics of occurrence of giant pulses from PSR 0950+08 
    Singal, A. K; Vats, H. O; Deshpande, M. R (Astronomical Society of India, 2000)
  • Status of HAGAR, the high altitude gamma ray observatory at Hanle 
    Chitnis, V. R; Acharya, B. S; Bhat, P. N; Cowsik, R; Prabhu, T. P; Srinivasan, R; Srivatsan, R; Vishwanath, P. R (Tata Institute of Fundamental Research, 2005)
    A 7 telescope array is planned to be constructed at Hanle in the Himalayas at an altitude of about 4200m above mean sea level for detecting celestial gamma-rays. The atmospheric Cerenkov light pool created by the ...
  • Status of the Himalayan Gamma-Ray Observatory (HIGRO) and observation with HAGAR at very high energies 
    Britto, R. J; Acharya, B. S; Anupama, G. C; Bhatt, N; Bhattacharjee, P; Bhattacharya, S; Chitnis, V. R; Cowsik, R; Dorji, N; Duhan, S. K; Gothe, K. S; Kamath, P. U; Koul, R; Mahesh, P. K; Manoharan, J; Mitra, A; Nagesh, B. K; Parmar, N. K; Prabhu, T. P; Rannot, R. C; Rao, S. K; Saha, L; Saleem, F; Saxena, A. K; Sharma, S. K; Shukla, A; Singh, B. B; Srinivasan, R; Srinivasulu, G; Sudersanan, P. V; Tickoo, A. K; Tsewang, D; Upadhya, S. S; Vishwanath, P. R; Yadav, K. K (French Society of Astronomy and Astrophysics, 2011-12)
    High Altitude GAmma Ray (HAGAR) telescope array, which is the first stage of HImalayan Gamma Ray Observatory (HIGRO), has been successfully installed at Hanle in Himalayas and has been collecting science data since September, ...
  • Steady and fluctuating parts of sun's internal magnetic field 
    Gokhale, M. H; Hiremath, K. M (International Astronomical Union, 1993-01)
    We have modeled the 'steady' part of sun's internal poloidal magnetic field in the form of a central dipole and a central hexapole with strengths (0.6 +/- 0.1)B(o)R(0) exp 3 and (0.16 +/- 0.05)B(o)R(0) exp 5 embedded in ...
  • Steady part of rotation and toroidal component of magnetic field in the solar convective envelope 
    Hiremath, K. M (Astronomical Society of India, 2001)
    With reasonable assumptions and approximations, we solve analytically the full set of Chandrasekhar's (1956) MHD equations in the convective envelope, for steady part of rotation and toroidal component of the magnetic field ...
  • Steady part of the sun's internal rotation 
    Hiremath, K. M; Gokhale, M. H (Astronomical Society of India, 1998)
    It is shown that steady part of rotation in the Sun's convective envelope (CE) and radiative core (RC)can be determined as an analytical solution of the diffusion equation in an incompressible medium of constant diffusivity. ...
  • Steady parts of rotation and magnetic field in the sun's convective envelope 
    Hiremath, K. M; Gokhale, M. H (Astronomical Society of India, 1996)
    We use the full set of Chandrasekhar's (1956) MHD equations for determining the steady parts of rotation and poloidal as well as toroidal magnetic field, in the Sun's convective envelope assuming incompressibility. The ...
  • "Steady" and "Fluctuating" Parts of the Sun's Internal Magnetic Field: Improved Model 
    Hiremath, K. M; Gokhale, M. H (The American Astronomical Society, 1995-07)
    Using reasonable assumptions and approximations it is shown that the poloidal component part of the magnetic field in the Sun's radiative core (RC) and convection zone (CE) can be modeled as in an analytical solution of ...
  • Stellar activity in the RS CVn binary star UX Arietis 
    Padmakar; Pandey, S. K (Astronomical Society of India, 1999)
    Using our data along with the photometric data available from the literature, we have made extensive analysis of the light variations of UX Ari. The parametric study of the photometric data for the last 22 years in the ...
  • Stellar and Galactic studies with the 2-m Himalayan Chandra Telescope 
    Goswami, A (Societe Royale des Sciences de Liege, 2019-10)
    The Himalayan Chandra Telescope (HCT), of the Indian Astronomical Observatory (IAO), is currently one of the most heavily subscribed telescopes in India. The telescope has been in regular use for scientific observations ...
  • Stellar and gas dynamical model for tidal disruption events in a quiescent galaxy 
    Mageshwaran, T; Mangalam, A (IOP Publishing, 2015-12-01)
    A detailed model of the tidal disruption events (TDEs) has been constructed using stellar dynamical and gas dynamical inputs that include black hole (BH) mass M•, specific orbital energy E and angular momentum J, star mass ...
  • Stellar and interstellar parameters from large photometric surveys 
    Malkov, O; Karpov, S; Kovaleva, D; Murthy, J; Sichevsky, S; Sytov, A; Zhao, G; Zhukov, A; Zakharo, A (NAS RA Byurakan Astrophysical Observatory, 2020-12)
    The parameterization of stars is a well known problem and used for various purposes in astronomy. We have shown that multicolor photometric data from large modern surveys can be used for parameterization of stars. With ...
  • Stellar astronomy with VBT 
    Kameswara Rao, N (Astronomical Society of India, 1993)
    The 2.34 meter Vainu Bappu Telescope (VBT) has been operating as a national facility for the last 3-4 years. Some of the current observational programs with VBT regarding the galactic astronomy are reviewed
  • Stellar chromospheres 
    Bappu, M. K. V (Indian Science Congress Association, 1977)

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