IIAP Publications: Recent submissions

  • Global sausage and kink modes in coronal loops 
    Anasooya Ashok; Satya Narayanan, A; Ramesh, R; Kathiravan, C (Anita Publications, 2004)
  • The DynaMICCS perspective. A mission for a complete and continuous view of the Sun dedicated to magnetism, space weather and space climate 
    Turck-Chieze, S; Lamy, P; Carr, C; Carton, P. H; Chevalier, A; Dandouras, I; Defise, J. M; Dewitte, S; Dudok de Wit, T; Halain, J. P; Hasan, S. S; Hochedez, J. F; Horbury, T; Levacher, P; Meissonier, M; Murphy, N; Rochus, P; Ruzmaikin, A; Schmutz, W; Thuillier, G; Vives, S (Springer Netherlands, 2009-03)
    The DynaMICCS mission is designed to probe and understand the dynamics of crucial regions of the Sun that determine solar variability, including the previously unexplored inner core, the radiative/convective zone interface ...
  • Magnetohydrodynamic waves in the solar corona 
    Satya Narayanan, A; Ramesh, R (Anita Publications, 2005)
  • Kinematics of the young stellar objects associated with the cometary globules in the Gum Nebula 
    Choudhury, R; Bhatt, H. C (Royal Astronomical Society, 2009-03)
    An analysis of the proper motion measurements of the young stellar objects (YSOs) associated with the cometary globules (CGs) in the Gum Nebula is presented. While earlier studies based on the radial-velocity measurements ...
  • Searching for the metal-weak thick disc in the solar neighbourhood 
    Reddy, B. E; Lambert, D. L (Royal Astronomical Society, 2008-11)
    An abundance analysis is presented of 60 metal-poor stars drawn from catalogues of nearby stars provided by Arifyanto et al. and Schuster et al. In an attempt to isolate a sample of metal-weak thick disc stars, we applied ...
  • Spot activity in the RS CVn binary DM Ursae Majoris 
    Mekkaden, M. V; Raveendran, A. V; Rosario, M. J; Heckert, P. A (Royal Astronomical Society, 2009-04)
    We present extensive UBVRI photometry of the active RS CVn binary DM UMa obtained at two different observatories over 1988-2008. We find the light curve of the star to be highly variable. The long-term photometry shows no ...
  • Schwarzschild orbital topography and high doppler blueshifts 
    Stoeger, W. R; Chitre, S. M; Narlikar, J. V; Kapoor, R. C (Nature Publishing Group, 1975-01)
  • Black hole entropy: some skin deep subtleties sans strings 
    Sivaram, C (Anita Publications, 2004)
  • Identification of beryllium hydride isotopomer lines in sunspot umbral spectra 
    Shanmugavel, R; Bagare, S. P; Rajamanickam, N; Balachandra Kumar, K (Astronomical Observatory, Serbia, 2008-06)
    A high resolution spectrum of FTS sunspot umbra of NSO/Kitt Peak was used to conduct a search for the molecular absorption lines due to BeH, BeD and BeT isotopomers. Analysis led to estimates of identification of the ...
  • Saturn-like ring system around Uranus 
    Bhattacharyya, J. C; Bappu, M. K. V (Nature Publishing Group, 1977-12)
    A photoelectric record of the occultation of SAO 158687 by Uranus on March 10, 1977, is analyzed. The observed variation in the intensity of the star's light is shown to indicate the presence of four zones, which are ...
  • Diurnal behaviour of midlatitude F-region parameters in summer 
    Sastri, J. H (National Institute of Science Communication and Information Resources, CSIR, 1978-04)
    Some aspects of the day-to-day variations in the diurnal behavior of F-region total electron content (TEC) and peak electron density (NmF2) at midlatitudes during summer months are studied using systematic and extensive ...
  • RS Ophiuchi 
    Anupama, G. C; Kantharia, N. G (Central Bureau for Astronomical Telegrams, 2006-03)
  • Post-Sunset behaviour of the equatorial anomaly in the Indian sector 
    Sastri, J. H (The Council of Scientific and Industrial Research, 1982-02)
    A detailed Investigation is made of the relationship, In the post-sunset period, between the depth of the equatorial anomaly and the evening rise of F-region at the trough on a day-to-day basis, using pubhshed data ...
  • Equatorial spread-F configurations and geomagnetic activity 
    Sastri, J. H; Sasidharan, K; Subrahmanyam, V; Srirama Rao, M (The Council of Scientific and Industrial Research, 1978-11)
    Using quarter-hourly ionogram data at Kodaikanal (geomag. lat: 0.6°N; dip: 3•S0N) for the period 19.57-63 a study is made of the effect of geomagnetic activity on the occurrence of range and frequency types of spread-F. ...
  • Forenoon bite-out in f0F2 at low latitudes 
    Sastri, J. H; Ramesh, K. B (The Council of Scientific and Industrial Research, 1982-04)
    Evidence is presented showing that the longitudinal extent of the forenoon bite-out in f0F2 at low geomagnetic latitudes can sometimes be very narrow and that marked differences in the extent of the development of the ...
  • Phase variabilty of Sq (H) and the ionospheric equatorial anomaly 
    Sastri, J. H (The Council of Scientific and Industrial Research, 1982-04)
    A study is made of the behaviour of the equatorial ionization anomaly m the Indian region on days with an abnormal S/subq (H) phase limited to the electrojet belt. The anomaly is found to disappear or reduce in strength quite ...
  • On the occurrence of AQDs at Kodaikanal 
    Sastri, J. H; Murthy, B. S (The Council of Scientific and Industrial Research, 1978-02)
    A study is made of the occurrence of 'abnormal quiet days' (AQDs) at Kodaikanal (10 deg 14 min N, 77 deg 28 min E; dip 3.5 deg N) using H-field data over a 26-yr period (1950-1975). The results show distinctive differences ...
  • Daytime equatorial VHF radiowave scintillations and sporadic-E layer 
    Koparkar, P. V; Rastogi, R. G; Sastri, J. H (The Council of Scientific and Industrial Research, 1989-08)
    Daytime VHF radiowave scintillations at Trivandrum are compared with the E-region irregularities at Kodaikanal. It is shown that daytime scintillations at Trivandrum are basically of two categories. One type of scintillations ...
  • Evolution of research in different astronomies in India 
    Bhattacharyya, J. C (The Council of Scientific and Industrial Research, 1986-10)
    The evolution of astronomical studies is reviewed with special reference to important achievements on Indian soil since the introduction of telescopic observations in the early seventeenth century. Important activities ...
  • Further spectroscopic observations of SN 1987A 
    Anupama, G. C; Prabhu, T. P; Ghosh, K. K; Ashoka, B. N; Giridhar, S (Elsevier, 1988)
    Spectroscopic observations of SN 1987a obtained during 1987 August 30 – September 8 from Vainu Bappu Observatory, Kavalur, are presented; the spectrum is compared and contrasted with the spectra recorded at earlier epochs. ...

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