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  • Pandya, K. R; Iyer, K. N (Astronomical Society of India, 1998)
  • Raveendran, A. V; Mohin, S (Indian Institute of Astrophysics, Bangalore, 1987)
    We describe the construction and discuss the performance of a d.c. amplifier which was installed at the 34-cm telescope of Vainu Bappu Observatory in 1987 January and since then extensively used for variable star photometry.
  • Smith, C. M (Director Kodaikanal Observatory, 1905-08-05)
  • Murthy, B. S (National Institute of Science Communication And Information Resources, 1979-12)
    The response of the equatorial geomagnetic field to the passage of over 170 spacecraft-observed and well-established sector boundaries during the period 1962-1972 has been studied. It is shown from superposed epoch analysis ...
  • Muneer, S; Singh, J (Astronomical Society of India, 2003)
    The influence of polarity separation on the daily tilt angle variation of sunspot groups has been studied from a selected number of observations of the Sun spanning the entire 22nd solar cycle. Daily white-light images of ...
  • Sethia, G; Chandra, H; Rastogi, R. G; Murthy, B. S; Shah, G. A; Krishna-Swamy, K. S (Indian Academy of Sciences, 1979-05)
  • Sundararaman, K (NISCAIR-CSIR, India, 2010-11)
    Are we going to be roasted alive by killer solar storms that may arrive during the next solar maximum in 2012? Why and how do these solar flares occur and how do they affect the earth? Read on to find out
  • Evershed, M. A; Evershed, John (Taylor and Francis, 1911-12)
  • Rebecca, L; Arun, K; Sivaram, C (Springer, 2018-07)
    The requirement that their gravitational binding self-energy density must at least equal the background repulsive dark energy density for large scale cosmic structures implies a mass-radius relation of M/R2 ≈ 1 g/cm2, as ...
  • Sivaram, C (World Scientific Publishing Co Pte Ltd, 2017-10)
    For Newtonian dynamics to hold over galactic scales, large amounts of dark matter (DM) are required which would dominate cosmic structures. Accounting for the strong obser- vational evidence that the universe is accelerating ...
  • Rebecca, L; Arun, K; Sivaram, C (Springer, 2020-09)
    In recent papers, it was shown explicitly that the sizes of gravitationally bound large-scale cosmic structures can be constrained from the requirement that their gravitational binding self-energy density should at least ...
  • Sivaram, C; Arun, K (Springer, 2019-10)
    Gravitational waves from mergers of black holes and neutron stars are now being detected by LIGO. Here we look at a new source of gravitational waves, i.e., a class of dark matter objects whose properties were earlier ...
  • Sivaram, C (Deccan Herald, 2009-03-24)
  • Arun, k; Gudennavar, S.B; Sivaram, C (Elsevier B.V, 2017-07)
    The nature of dark matter (DM) and dark energy (DE) which is supposed to constitute about 95% of the energy density of the uni-verse is still a mystery. There is no shortage of ideas regarding the nature of both. While ...
  • Castro-Tirado, A. J; Bremer, M; McBreen, S; Gorosabel, J; Guziy, S; Fakthullin, T. A; Sokolov, V. V; González Delgado, R. M; Bihain, G; Pandey, S. B; Jelínek, M; de Ugarte Postigo, A; Misra, K; Sagar, R; Bama, P; Kamble, A. P; Anupama, G. C; Licandro, J; Pérez-Ramírez, D; Bhattacharya, D; Aceituno, F. J; Neri, R (EDP Sciences, 2007-11)
    Aims.We present multiwavelength (X-ray/optical/near-infrared/millimetre) observations of GRB 051022 between 2.5 h and ~1.15 yr after the event. It is the most intense gamma-ray burst (~10-4 erg cm-2) detected by HETE-2, ...
  • Srinivasulu, G (Indian Institute of Astrophysics, 2010)
    This report describes the concept of the electronics design and implementation of PMT pulse counting , rotation of Half wave plate, chopper spinning and shutter control and host computer communication.
  • Ghosh, S. K; Naik, M. B (Astronomical Society of India, 1993)
    A near infrared array camera based on a SBRC 58 x 62 InSb detector (TIRCAM-1) is being developed at Tata Institue of Fundamental Research (TIFR) for astronomical imaging applications. The data acquisition system for this ...
  • Britto, R. J; Acharya, B. S; Anupama, G. C; Bhattacharjee, P; Chitnis, V. R; Cowsik, R; Dorji, N; Duhan, S. K; Gothe, K. S; Kamath, P. U; Mahesh, P. K; Manoharan, J; Nagesh, B. K; Parmar, N. K; Prabhu, T. P; 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; Tsewang, D; Upadhya, S. S; Vishwanath, P. R (French Society of Astronomy and Astrophysics, 2011-12)
    The High Altitude GAmma-Ray (HAGAR) experiment is the highest altitude atmospheric Cherenkov sampling array, set up at 4300 m amsl in the Himalayas (Northern India). It constitutes 7 telescopes, each one with seven 90 ...
  • Ravinder Kumar Banyal (Indian Institute of Astrophysics, Bangalore, 2005-10)

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