IIAP Publications: Recent submissions

  • Prediction of electronic structure of organic radicaloid anions using efficient, economical multireference gradient approach 
    Chattopadhyay, Sudip; Chaudhuri, R. K; Freed, Karl F (Royal Society of Chemistry Publishing, 2011-04)
    The improved virtual orbital-complete active space configuration interaction (IVO-CASCI) method enables an economical and reasonably accurate treatment of static correlation in systems with significant multireference ...
  • The Eighth Data Release of the Sloan Digital Sky Survey: First Data from SDSS-III 
    Aihara, H; Allende Prieto, C; An, D; Anderson, S. F; Aubourg, E; Balbinot, E; Beers, T. C; Berlind, A. A; Bickerton, S. J; Bizyaev, D; Blanton, M. R; Gillespie, B. A; Pan, K; Gilmore, G; González Hernández, J. I; Bochanski, J. J; Gott, J. R; Gould, A; Grebel, E. K; Mullally, F; Gunn, J. E; Phleps, S; Hamilton, J; Harding, P; Carr, M. A; Harris, D. W; Hawley, S. L; Hearty, F. R; Nichol, R. C; Ho, S; Hogg, D. W; Holtzman, J. A; Davenport, J. R. A; Honscheid, K; Muna, D; Inada, N; Pandey, P; Ivans, I. I; Jiang, L; Johnson, J. A; Jordan, C; O'Connell, R. W; Jordan, W. P; Pichon, C; Kazin, E. A; Kirkby, D; Klaene, M. A; Knapp, G. R; Paris, I; Munn, J. A; Kneib, J; Kochanek, C. S; Koesterke, L; Kollmeier, J. A; Pieri, M. M; Ogando, R. L. C; Kron, R. G; Lampeitl, H; Lang, D; Le Goff, J; Bolton, A. S; Lee, Y. S; Lin, Y; Murayama, H; Long, D. C; Chen, Y; Loomis, C. P; Lucatello, S; Olmstead, M. D; Lundgren, B; Lupton, R. H; Ma, Z; Percival, W. J; MacDonald, N; Mahadevan, S; Maia, M. A. G; Prada, F; Makler, M; Myers, A. D; Malanushenko, E; Malanushenko, V; Oravetz, D. J; Mandelbaum, R; Maraston, C; Petitjean, P; Margala, D; Masters, K. L; Price-Whelan, A. M; McBride, C. K; McGehee, P. M; McGreer, I. D; Ménard; Naugle, T; Fausti Neto, A; Padmanabhan, N; Palanque-Delabrouille, N; Pfaffenberger, R; Pforr, J; Raddick, M. J; Bovy, J; Ramos, B. H. F; Esposito, M; Reyle, C; Rich, J; Miralda-Escudé, J; Richards, G. T; Rix, H; Robin, A. C; Chiappini, C; Rocha-Pinto, H. J; Rockosi, C. M; Roe, N. A; Cuong Nguyen, D; Rollinde, E; Brandt, W. N; Ross, A. J; Dawson, K; Ross, N. P; Rossetto, B. M; Sánchez, A. G; Sayres, C; Comparat, J; Schlegel, D. J; Evans, M. L; Schlesinger, K. J; Schmidt, S. J; Schneider, D. P; Sheldon, E; Dhital, S; Brinkmann, J; Shu, Y; Simmerer, J; Simmons, A. E; Sivarani, T; Fan, X; Connolly, N; Snedden, S. A; Sobeck, J. S; Steinmetz, M; Strauss, M. A; Ealet, A; Szalay, A. S; Tanaka, M; Brown, P. J; Thakar, A. R; Morrison, H. L; Thomas, D; Tinker, J. L; Cortes, M; Tofflemire, B. M; Tojeiro, R; Tremonti, C. A; Ebelke, G. L; Vandenberg, J; Vargas Magaña, M; Verde, L; Femenía Castellá, B; Vogt, N. P; Brownstein, J. R; Wake, D. A; Wang, J; Croft, R. A. C; Weaver, B. A; Weinberg, D. H; Edmondson, E. M; White, M; White, S. D. M; Font-Ribera, A; Yanny, B; Yasuda, N; Yeche, C; Zehavi, I; Busca, N. G; Campbell, H; Cuesta, A. J; da Costa, L. N; Eisenstein, D. J; Escoffier, S; Frinchaboy, P. M; Ge, J (IOP Publishing, 2011-04)
    The Sloan Digital Sky Survey (SDSS) started a new phase in 2008 August, with new instrumentation and new surveys focused on Galactic structure and chemical evolution, measurements of the baryon oscillation feature in the ...
  • Polarized Line Formation with J-state Interference in the Presence of Magnetic Fields. I. Partial Frequency Redistribution in the Collisionless Regime 
    Smitha, H. N; Sampoorna, M; Nagendra, K. N; Stenflo, J. O (IOP Publishing, 2011-05-20)
    Quantum interference phenomena play a fundamental role in astrophysical spectra that are formed by coherent scattering processes. Here we derive a partial frequency redistribution (PRD) matrix that includes J-state ...
  • Enigmatic aspects of the early universe: possibility of a `pre-big bang phase'! 
    Sivaram, C; Arun, K (Springer, 2011-05)
    In this paper it is suggested that inclusion of mutual gravitational interactions among the particles in the early dense universe can lead to a ‘pre-big bang’ scenario, with particle masses greater than the Planck mass ...
  • On the interaction of a thin, supersonic shell with a molecular cloud 
    Anathpindika, S; Bhatt, H. C (Wiley-Blackwell, 2011-04)
    Molecular Clouds (MCs) are stellar nurseries; however, formation of stars within MCs depends on the ambient physical conditions. MCs, over a free-fall time, are exposed to numerous dynamical phenomena, of which, the ...
  • Efficient minimization of servo lag error in adaptive optics using data stream mining 
    Vyas, A; Roopashree, M. B; Prasad, B. R (Springer, 2011)
    Prediction of the wavefronts helps in reducing the servo lag error in adaptive optics caused by finite time delays (~ 1-5 ms) before wavefront correction. Piecewise linear segmentation based prediction is not suitable in ...
  • Valence universal multireference coupled cluster calculations of the properties of indium in its ground and excited states 
    Madhulita Das; Chaudhuri, R. K; Chattopadhyay, S; Mahapatra, U. S (IOP Publishing, 2011-03)
    In view of its importance in high precision spectroscopy, the valence universal multireference coupled cluster (VU-MRCC) method with four-component relativistic spinors has been applied to compute ionization potential (IP) ...
  • m-state Interference with Partial Frequency Redistribution for Polarized Line Formation in Arbitrary Magnetic Fields 
    Sampoorna, M (IOP Publishing, 2011-04-20)
    The present paper concerns the derivation of polarized partial frequency redistribution (PRD) matrices for scattering on a two-level atom in arbitrary magnetic fields. We generalize the classical theory of PRD that is ...
  • Seyfert Galaxies: Nuclear Radio Structure and Unification 
    Lal, D. V; Shastri, P; Gabuzda, D. C (IOP Publishing, 2011-04-10)
    A radio study of a carefully selected sample of 20 Seyfert galaxies that are matched in orientation-independent parameters, which are measures of intrinsic active galactic nucleus power and host galaxy properties, is ...
  • Early pioneers of telescopic astronomy in India: G.V.Juggarow and his Observatory 
    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 ...
  • Survey of O VI absorption in the Large Magellanic Cloud 
    Pathak, A; Pradhan, A. C; Sujatha, N. V; Murthy, J (Wiley-Blackwell, 2011-04)
    We present a survey of interstellar O VI absorption in the Large Magellanic Cloud (LMC) towards 70 lines of sight based on Far Ultraviolet Spectroscopic Explorer (FUSE) observations. The survey covers O VI absorption in a ...
  • Geomagnetic Field Variations at Kodaikanal 
    Sivaramakrishnan, M. V (© Nature Publishing Group, 1952-03-08)
  • Second outburst phase of McNeil's nebula (V1647 Orionis) 
    Kaurav, S. S; Ojha, D. K; Ninan, J. P; Bhatt, B. C; Sahu, D. K; Ghosh, S. K; Tej, A (Astronomical Society of India, 2010)
    The FU Ori/EX Od phenomenon represents a rare and not yet fully understood phase of the early evolution of low mass stars. Therefore, the photometric and spectroscopic monitoring of the post-outburst phase of these ...
  • Multi-wavelength study of the young cluster NGC 1624 
    Jose, J; Pandey, A. K; Ogura, K; Ojha, D. K; Bhatt, B. C; Samal, M. R; Chauhan, N (Astronomical Society of India, 2010)
    We present preliminary results of deep optical and nearinfrared observations of the young cluster NCC 1624 associated with the H II region Sh2-212. Basic parameters of the cluster, young stellar population, initial mass ...
  • Multi-wavelength studies of Galactic HII regions 
    Samal, M. R; Pandey, A. K; Ojha, D. K; Zinchenko, I; Bhatt, B. C; Ghosh, S. K; Pandey, B (Astronomical Society of India, 2010)
    We present the recent results obtained with multiwavelength observations of three Galactic HII regions. Our findings suggest these regions are likely candidates of triggered star formation, where star formation in their ...
  • Post-outburst phase of LDN 1415 nebula (IRAS 04376+5413) 
    Pawad, V. S; Ojha, D. K; Ninan, J. P; Tej, A; Bhatt, B. C; Sahu, D. K; Ghosh, S. K; Kaurav, S. S; Mohan, V (Astronomical Society of India, 2010)
    LDN 1415 nebula was first detected by Stecklum (2006) in early April 2006 in the vicinity of lRAS 04376+5413. In this paper, we present a study of the post-outburst phase of LDN 1415 nebula using optical (V, R, J) and ...
  • Bright-rimmed clouds and Young Stellar Objects in IC 1396 
    Choudhury, R; Bhatt, H. C (Astronomical Society of India, 2010)
    Spectroscopic observations of Young Stellar Objects (YSOs) in IC 1396 are presented. It is found that there is a systematic variation, as a function of position, in W). (Ha) of the YSOs in/around SFO 38 e.g YSOs close ...
  • Spectroscopy of Be stars in young open clusters 
    Mathew, B; Subramaniam, A (Astronomical Society of India, 2010)
    A spectroscopic study of 152 Classical Be stars in 42 young open clusters was performed using medium resolution spectra in 3700-9000 A range, to understand the Be phenomenon. The Balmer decrement is found to have a ...
  • Science with Indian Astronomical Observatory, Hanle 
    Prabhu, T. P; Anupama, G. C (Astronomical Society of India, 2010)
    Indian Astronomical 0 bserva,tory, Hanle, is the high altitude (4500 in above msl) observat.ory operated by the Indian Institute of Astrophysics, Bangalore. The 2-m Himalayan Chandra Telescope (HCT) inst.alled in the ...
  • Internal and foreground reddening maps of the Magellanic Clouds 
    Subramaniam, A; Subramanian, S (Astronomical Society of India, 2010)
    We present the internal and foreground reddening maps of the Large and Small Magellanic Clouds. These are estimated using the red clump stars identified from the OGLE III catalog. The foreground reddening is estimated ...

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