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Browsing IIAP Publications by Title

Browsing IIAP Publications by Title

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  • Sivaram, C; de Andrade, L. C. G (Kluwer Academic Publishers, 1993-02)
  • Ghosh, K. K; Bhattacharyya, J. C (D. Reidel Publishing Co.,, 1985-12)
    The gravitational instability of a nonrotating isothermal gaseous disk permeated by a uniform frozen-in magnetic field is investigated using a fourth-order perturbation technique. From the results it is found that the disk ...
  • Safonova, M (Societe Royale des Sciences de Liege, 2018-04)
    Gravitational lensing is brightening of background objects due to deflection of light by foreground sources. Rich clusters of galaxies are very effective lenses because they are centrally concentrated. Such natural Gravitational ...
  • Chitre, S. M; Narlikar, J. V; Kapoor, R. C (Nature Publishing Group, 1974-12)
    Attention is given to an interesting effect associated with light emitted in the forward direction by a source circulating in an equatorial plane around a highly collapsed object or a black hole. The emitted light received ...
  • Sivaram, C (Indian Institute of Astrophysics, 1988)
  • Sivaram, C (World Scientific Publishing Co., 2015-10)
    Attempts to detect gravitational waves is actively in progress with sophisticated devices like LIGO setup across continents. Despite being predicted almost 100 years ago, there has so far been no direct detection of these ...
  • de Sabbata, V; Sivaram, C (Springer, 1994-10)
    The non-conservation of CP symmetry in the decay of neutralK mesons was discovered almost three decades ago. The origin of this unique phenomenon is still not well understood. There have been attempts to link it with energy ...
  • Sivaram, C; Arun, K; Kiren, O. V; Sreenath, B. N (Hadronic Press Inc, 2015-12)
    Gravity stands apart from other fundamental interactions in that it is locally equivalent to an accelerated frame and can be transformed away. Again it is indistinguishable from the geometry of space-time (which is an arena ...
  • Castro-Tirado, A. J; Jelínek, M; Pandey, S. B; McBreen, S; de Jong, J; Sahu, D. K; Ferrero, P; Caballero, J. A; Gorosabel, J; Kann, D. A; Klose, S; de Ugarte Postigo, A; Anupama, G. C; Gry, C; Guziy, S; Srividya, S; Valdivielso, L; Vanniarajan, S; Henden, A. A (EDP Sciences, 2006-12)
    We present multiwavelength observations of the gamma-ray burst GRB 051028 detected by HETE-2 in order to derive its afterglow emission parameters and to determine the reason for its optical faintness when compared to other ...
  • Kapoor, R. C. (NIScPR-CSIR, 2024-05)
    THE excitement about the total solar eclipse of 8 April 2024 in North America is unprecedented. Years before it was to pass, astronomers, educationists, students, the administrations and the local communities, and ...
  • Sivaraman, K. R; Makarov, V. I (Astronomical Society of the Pacific, 1992)
  • Ramesh, K. B; Nagabhushana, B. S; Varghese, B. A (Kluwer Academic Publishers, 1999-08)
    Analysis of the photospheric and chromospheric activity at the sites of enhanced 5303 Å coronal intensity revealed some important aspects of their association. We have examined the daily maps of 5303 Å coronal line intensity ...
  • Poutanen, J; Nagendra, K. N; Svensson, R (Royal Astronomical Society, 1996-12)
    The Compton-reflected spectrum from cold matter for incident X-rays and gamma-rays with arbitrary angular, spectral and polarization properties can be determined by a simple folding of Green's matrix with the incident ...
  • Roopashree, M. B; Vyas, A; Prasad, B. R (Optical Society of America, 2011-07)
    Atmospheric phase screens are used for numerical evaluation of large telescope systems. In this paper, we optimized the grid size of the simulated phase screens in terms of the error in the structure function assuming a ...
  • Bhattacharya, J. C (Centre of Advanced Study in Astronomy,Osmania University, 1974)
    The problems connected with observations in the near infra-red from ground based locations are discussed. It is shown that optical telescopes located at high stations in India. can be used effectively for near infra-red ...
  • Parthasarathy, M (National Astronomical Observatory, 1996)
  • Gonzalez, G (Indian Institute of Astrophysics, Bangalore, 1997)
    Measurements of the relative humidity, air pressure, and air temperature were obtained at Nim Ka Thana, India on October 24, 1995 during tht total eclipse of the Sun. Data were also obtained 24 hours previous to the eclipse. ...
  • Acton, C. E; Priestley, K; Gaur, V. K; Rai, S. S (American Geophysical Union, 2010-12)
    We present results of a Rayleigh and Love wave group velocity dispersion study of the Indo-Eurasian collision zone. Group velocity dispersion curves are measured and combined to produce dispersion maps for 10–70 s period ...
  • Vagiswari, A; Louis, C (Elsevier, 1995)
    This paper analyses the change in the referencing pattern among the astronomers. There has been an increase in the number of conference proceedings (CP) during the last 10 years. In astronomy alone there were around 131 ...
  • Ankit Kumar; Kataria, Sandeep Kumar (Oxford University Press on behalf of Royal Astronomical Society, 2022-08)
    Cosmological simulations predict more classical bulges than their observational counterparts in the local Universe. Here, we quantify evolution of the bulges since z = 0.1 using photometric parameters of nearly 39 000 ...

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