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Browsing IIAP Publications by Title

Browsing IIAP Publications by Title

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  • Ray, H (Kluwer Academic Publishers, 2003-02)
    Accurate theoretical data for the transition probabilities are highly demanding in astrophysics and in the study of plasma in astrophysical objects and fusion devices. Na-like highly stripped ions of iron group, specially ...
  • Brown, E. T; Bendick, R; Bourles, D. L; Gaur, V. K; Molnar, P; Raisbeck, G. M (Elsevier Science BV, 2003-10)
    Cosmic ray exposure ages for formation of perched alluvial terraces and for abundant of an alluvial/debrisflow fan on opposite slides of the Tangtse Valley (The out flow at the northwest end of lake panggong, which is in ...
  • Prabhu, T. P (Indian Institue of Astrophysics, Bangalore, 1977)
    The emission line profiles of the spectrum of the spectrum of the envelope of Nova V 1500 Cyg, 1975 are studied. The spectral region covers LamdaLamda 3700-8800. The velocity structure of the profiles and the time variation ...
  • Bhargavi, S. G; Cowsik, R (The American Astronomical Society, 2000-12)
    We report multiband observations of the optical transient associated with GRB 000301c carried out 2000 March 2-4 using the 2.34 m Vainu Bappu Telescope at Kavalur, India. When combined with other reported data, the initial ...
  • Pandey, S. B; Sagar, R; Anupama, G. C; Bhattacharya, D; Sahu, D. K; Castro-Tirado, A. J; Bremer, M (EDP Sciences, 2004-04)
    The CCD magnitudes in Johnson UBV and Cousins RI photometric passbands for the afterglow of the long duration GRB 030226 are presented. Upper limits of a few mJy to millimeter wave emission at the location of optical are ...
  • Kameswara Rao, N; Vagiswari, A; Birdie, C (Indian Academy of Sciences, 2011-05-25)
    G.V.Juggarow was one of the early pioneers of observational astronomy in India who built his own observatory in 1840 at Vizagapatam (Vizagapatnam). His legacy was continued by his son-in-law A.V.Nursing Row till 1892, his ...
  • Anupama, G. C; Sivarani, T; Pandey, G (EDP Sciences, 2001-02)
    We present medium-resolution optical spectra of the type II supernova SN 1998S obtained during the pre-maximum, maximum and early decline phases. The early decline spectra show complex Balmer line profiles: a narrow P-Cygni ...
  • Sastri, J. H (D. Reidel Publishing Company, 1986-05)
    Evidence is presented to show that during epochs of high sunspot activity, the duration of manifestation of equatorial spread-F (ESF) irregularities in the Earth's equatorial ionosphere undergoes a systematic modulation ...
  • Bilham, R; Gaur, V. K; Molnar, P (American Association for the Advancement of Science, 2001-08)
    The devastating earthquake in Bhuj on 26 January 2001 highlighted the high earthquake risk in the Indian region of Gujarat. In their Perspective, Bilham et al. warn that major earthquakes may be expected in another part ...
  • Kameswara Rao, N; Ashoka, B. N; Lloyd, C; Pike, C. D; Stickland, D. J (Indian Academy of Sciences, 1990-12)
    A new radial velocity study has been made of the highly eccentric, early-type binary BD - 1 deg 1004 using spectra from the Kavalur Observatory. All available archival material has also been reexamined. An attempt has been ...
  • Ramesh, R; Subramanian, K. R; Sastry, Ch. V (Kluwer Academic Publishers, 1999-03)
    We report here on high angular resolution observations of solar noise storm sources at a frequency of 75MHz. The data for the study were obtained at the Gauribidanur Radio Observatory (long.: 77 deg26'12''E, lat.: 13 ...
  • Singh, J; Bappu, M. K. V; Saxena, A. K (Indian Academy of Sciences, 1982-09)
    Coronal spectra during the total solar eclipse of February 16, 1980, obtained in the 6374 A (forbidden Fe X) line using a multislit spectrograph are discussed. The dispersion of these spectra is 2.5 A/mm. The observed line ...
  • Bappu, M. K. V (1979-03)
  • Rangarajan, K. E (The Royal Astronomical Society, 1999-10)
    The polarized radiative transfer equation is solved when angle-dependent partial redistribution and non-coherent electron scattering are included as line-scattering mechanisms. A static atmosphere with plane parallel ...
  • Krishan, V; Wiita, P. J; Ramadurai, S (European Southern Observatory, 2000-04)
    We show that a certain class of flare models for variability from accretion disk coronae are subject to beam-plasma instabilities. These instabilities can prevent significant direct acceleration and greatly reduce the ...
  • Kataria, Sandeep Kumar; Mousumi, Das (IOP Publishing, 2019-11)
    We present a study of the effect of bulge mass on the evolution of bar pattern speed in isolated disk galaxies using N -body simulations. Earlier studies have shown that disk stars at the inner resonances can transfer a ...
  • Bappu, M. K. V (Indian Academy of Sciences, 1946-01)
  • Anusha, L. S; Nagendra, K. N; Uitenbroek, H (IOP Publishing, 2014-10-10)
    Oxygen is the most abundant element on the Sun after hydrogen and helium. The intensity spectrum of resonance lines of neutral oxygen, namely, O I (1302, 1305, and 1306 Å), has been studied in the literature for chromospheric ...
  • Kapoor, R. C (D. Reidel Publishing Company, 1986)
    The author has used the impulsive approximation technique to numerically estimate the effect of dynamical friction on the motion of a supermassive black hole (mass ≈ 10/sup9M_sun;) through a galaxy (mass ≈ 10/sup11M_sun;) ...
  • Kapoor, R. C (D. Reidel Publishing Company, 1985-05)
    We have used the impulsive approximation technique to numerically estimate the effect of dynamical friction on the motion of a supermassive black hole (mass 109 M ) through a galaxy (mass=1011 M ) which has recoiled from ...

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