IIAP Publications: Recent submissions

  • The determination of a spectroscopic binary orbit 
    Singh, M (Kluwer Academic Publishers, 1984-03)
    An efficient analytical method for determining the orbit of a spectroscopic binary is presented. The advantages of the method are: (1) its accuracy, (2) its rapidity, and (3) the possibility of making adjustments in the ...
  • Identification of infrared sources in the IRAS circulars 
    Seal, P (Kluwer Academic Publishers, 1985-07)
    From IRAS (Infrared Astronomical Satellite) Circulars Nos. 4 to 15, 110 infrared sources have been identified. Out of these 110 identified sources 99 are galaxies, nine are nebulae, one is a dark object, and one is a ...
  • Chromospheric inhomogeneities: origins and dynamics 
    Venkatakrishnan, P (Indian Academy of Sciences, 1985-10-05)
    Observations of the solar chromosphere in selected spectral lines reveal a large number of inhomogeneities. These inhomogeneities owe their origin to local a large enhancement of the Photospheric magnetic fields. The ...
  • Similarity solutions for buoyancy induced flows in a saturated porous medium adjacent to impermeable horizontal surfaces 
    Chandrasekhara, B. C; Namboodiri, P. M. S; Hanumanthappa, A. R (Springer, 1984-03)
    In the present paper similarity solutions for the convective flow induced by buoyancy in a saturated porous medium adjacent to horizontal impermeable surfaces are obtained. The analysis incorporates the variation of ...
  • Ion-sound turbulence due to shock gradients in collisionless plasmas 
    Gopalswamy, N; Thejappa, G (Indian Academy of Sciences, 1985-11)
    The dispersion relation for ion sound waves generated in a perpendicular shock is derived and the energy density of ion-sound turbulence is obtained using quasilinear theory. The result is compared with the lower hybrid ...
  • On the consequences of a new initial-final mass relation for low and intermediate mass stars and the birthrate of planetary nebulae 
    Mallik, D. C. V (Gordon and Breach Science Publishers, 1985)
    Recent work on the initial-final mass relation for low-and intermediate-mass stars and the mass distribution of the nuclei of planetary nebulae sets a lower limit on the initial mass of progenitors of PN which is substantially ...
  • Lunar occultation techniques in investigations of binary stars 
    Bhattacharyya, J. C (Tira Pustaka, Jakarta, 1984)
    The paper discusses the possibility of direct measurement of angular separations and luminosity ratios of components of unresolved binary systems through observations of lunar occultations. A current program at Kavalur ...
  • Distribution of bhb-stars in the cluster ω centauri and its effect on the radial change in colour and ellipticity of the cluster 
    Scaria, K. K; Bappu, M. K. V (Tira Pustaka, Jakarta, 1984)
    The authors have studied the radial change in the distribution of giant branch stars and the horizontal branch stars in ω Centauri. They show how the observed change in the distribution is related to the radial change in ...
  • Long-term photometric variations of the active RS CVn binaries DM UMa and II Peg 
    Mohin, S; Raveendran, A. V; Mekkaden, M. V (International Astronomical Union, 1995)
  • Comment on “Southward magnetic field in the neutral sheet produced by wavy motions propagating in the dawn-dusk direction” 
    Uberoi, C (American Geophysical Union, 1991-03)
    In a recent paper Nakagawa and Nishida [1989] have suggested that wavy motions of the neutral sheet can be generated by the Kelvin‐Helmholtz instability if the dawn‐dusk flow of only several tens of km/s is present. However, ...
  • Supersonic cloud collision. II 
    Anathpindika, S (EDP Sciences, 2009-09)
    Aims. In this second paper of the sequel of two papers, we continue to investigate the problem of molecular cloud (MC) collision. The companion paper to this one considered highly supersonic cloud collisions and examined ...
  • Supersonic cloud collision. I 
    Anathpindika, S (EDP Sciences, 2009-09)
    It has long been suggested that shocks might play an important role in altering the form of the interstellar medium (ISM). Shocks enhance gas density and sufficiently dense regions may become self gravitating. Potential ...
  • The CoRoT target HD175726: an active star with weak solar-like oscillations 
    Mosser, B; Michel, E; Appourchaux, T; Barban, C; Baudin, F; Boumier, P; Bruntt, H; Catala, C; Deheuvels, S; Garcia, R. A; Gaulme, P; Regulo, C; Roxburgh, I; Samadi, R; Verner, G; Auvergne, M; Baglin, A; Ballot, J; Benomar, O; Mathur, S (EDP Sciences, 2009-10)
    Context. The CoRoT short runs give us the opportunity to observe a large variety of late-type stars through their solar-like oscillations. We report observations of the star HD175726 that lasted for 27 days during the first ...
  • Solar-like oscillations with low amplitude in the CoRoT target HD 181906 
    Garcia, R. A; Regulo, C; Samadi, R; Ballot, J; Barban, C; Benomar, O; Chaplin, W. J; Gaulme, P; Appourchaux, T; Mathur, S; Mosser, B; Toutain, T; Verner, G. A; Auvergne, M; Baglin, A; Baudin, F; Boumier, P; Bruntt, H; Catala, C; Deheuvels, S; Elsworth, Y; Jimenez-Reyes, S. J; Michel, E; Perez Hernandez, F; Roxburgh, I. W; Salabert, D (EDP Sciences, 2009-10)
    Context: The F8 star HD 181906 (effective temperature ~6300K) was observed for 156 days by the CoRoT satellite during the first long run in the centre direction. Analysis of the data reveals a spectrum of solar-like acoustic ...
  • Jets in polar coronal holes 
    Scullion, E; Popescu, M. D; Banerjee, D; Doyle, J. G; Erdelyi, R (IOP Publishing, 2009-10-20)
    Here, we explore the nature of small-scale jet-like structures and their possible relation to explosive events and other known transient features, like spicules and macrospicules, using high-resolution spectroscopy obtained ...
  • Description of accretion induced outflows from ultra-luminous sources to under-luminous AGNs 
    Ghosh, Shubhrangshu; Mukhopadhyay, Banibrata; Krishan, V; Khan, Manoranjan (Elsevier, 2010-01)
    We study the energetics of the accretion-induced outflow and then plausible jet around black holes/compact objects using a newly developed disc-outflow coupled model. Inter-connecting dynamics of outflow and accretion ...
  • Alfvén-like mode in partially ionized solar atmosphere 
    Singh, K. A. P; Krishan, V (Elsevier, 2010-01)
    The partially ionized part of the solar atmosphere is investigated within the framework of a single-fluid magnetohydrodynamic (MHD) description including the non-ideal effects such as the Hall effect and the ambipolar ...
  • Sweet–Parker current slab in a partially ionized plasma 
    Krishan, V (Blackwell Publishing, 2009-12)
    The formation of the Sweet–Parker current sheet, in fact a slab, is studied for a partially ionized plasma. The effects arising from the ion–neutral drag, the ambipolar diffusion, the resistivity resulting from electron–neutral ...
  • Science and music: A harmonious jugalbandi! 
    Annapurni, S (Indian Academy of Sciences, 2008)
  • Meandering into astrophysics 
    Shastri, P (Indian Academy of Sciences, 2008)

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