IIA Institutional Repository: Recent submissions

  • Characterization of adaptive optics mirrors using long yrace profilometer 
    Saxena, A. K; Chinnappan, V; Ismail Jabilullah, R (Anita Publications, 2004-12)
    A Long Trace Profilometer (LTP) was designed and fabricated in-house primarily to measure the profile of long, non-circularly symmetric grazing incidence optics. This system was used to calibrate the tip-tilt and deformable ...
  • Estimation of CII and CII* column densities along Galactic sight-lines 
    Parvathi, V. S; Sofia, U. J; Murthy, J; Babu, B. R. S (Astronomical Society of India, 2010-09)
    We present interstellar CII (1334.5323 \AA) and CII* (1335.7077 \AA) column density measurements along 14 Galactic sight-lines. These sight-lines sample a variety of Galactic disk environments and include paths that range ...
  • Light curve solutions of eclipsing binaries in SMC 
    Ivanov, V. P; Kjurkchieva, D. P; Srinivasa Rao, M (Astronomical Society of India, 2010-09)
    We propose a procedure for light-curve solutions of eclipsing binary stars in the Small Magellanic Cloud (SMC) for which photometric data have been obtained in the framework of the OGLE project. We also present a way of ...
  • A multiparametric HPGe-NaI acquisition system for low gamma activity measurements of meteorites 
    Taricco, C; Bhandari, N; Colombetti, P; Mariani, I; Neeharika, V; Vivaldo, G (Societa Astronomica Italiana, 2010)
    The study of long-term solar activity variations in the past requires the use of radioisotopic data planetary reservoirs. At the Laboratory of Monte dei Cappuccini in Torino (IFSI-Torino, INAF) for many years we have ...
  • Extended use of two crossed Babinet compensators for wavefront sensing in adaptive optics 
    Lancelot, J. P; Saxena, A. K (SPIE, 2010-12)
    An extended use of two crossed Babinet compensators as a wavefront sensor for adaptive optics applications is proposed. This method is based on the lateral shearing interferometry technique in two directions. A single ...
  • The metal-poor end of the Spite plateau I. Stellar parameters, metallicities, and lithium abundances 
    Sbordone, L; Bonifacio, P; Caffau, E; Ludwig, H. -G; Behara, N. T; González Hernández, J. I; Steffen, M; Cayrel, R; Freytag, B; Van’t Veer, C; Molaro, P; Plez, B; Sivarani, T; Spite, M; Spite, F; Beers, T. C; Christlieb, N; François, P; Hill, V (EDP Sciences, 2010-11)
    Context. The primordial nature of the Spite plateau is at odds with the WMAP satellite measurements, implying a primordial Li production at least three times higher than observed. It has also been suggested that A(Li) might ...
  • The historical significance of the total solar eclipse of Oct 17, 1762 that passed over Panjab 
    Kapoor, R. C (Indian National Science Academy, 2010-12)
    In this communication we present the circumstances of the total solar eclipse of Oct 17, 1762 that passed over India, specific to Amritsar to recreate the ambience that may serve as a definitive input to certain perceptions ...
  • Dangerous Face of the Sun 
    Sundararaman, K (NISCAIR-CSIR, India, 2010-11)
    Are we going to be roasted alive by killer solar storms that may arrive during the next solar maximum in 2012? Why and how do these solar flares occur and how do they affect the earth? Read on to find out
  • Recapturing Chandra @ iia 
    Library, IIA (Library, Indian Institute of Astrophysics, 2010-12-07)
    A glimpse of the photographs of Prof. S. Chandrasekhar displayed at the Library, IIA, Bangalore during Chandra Centenary Conference 7-11 Dec 2010, IIA, Bangalore
  • World Book and Copyright Day 2010 @ Indian Institute of Astrophysics 
    Library, IIA (Library, Indian Institute of Astrophysics, 2010-04-23)
  • Open Access Week 2010 @ Indian Institute of Astrophysics 
    Library, IIA (Library, Indian Institute of Astrophysics, 2010-10-18)
  • On some photographic AIDS for the measurement of Astronomical spectra 
    Bappu, M. K. V (European Southern Observatory, 1978)
  • Open Access Week 2009 @ Indian Institute of Astrophysics 
    Library, IIA (Library, Indian Institute of Astrophysics, 2009-10-19)
  • Himalayan Chandra Telescope (Indian Astronomical Observatory, Hanle) 
    100hoursofastronomy.org (2009-04-03)
    Indian Astronomical Observatory's 2-m aperture Himalayan Chandra Telescope (HCT) is the world's highest optical-infrared telescope situated at an altitude of 4500 m (15000 ft) above sea level in Hanle, Ladakh, Indian ...
  • Orbital period modulation and spot activity in the RS CVn binary V711 Tauri 
    Muneer, S; Jayakumar, K; Rosario, M. J; Raveendran, A. V; Mekkaden, M. V (EDP Sciences, 2010-10)
    We attempt to establish the real nature of the orbital period variation and its relation to the spot activity of V711 Tau, and determine why the (B–V) colour of the star appears to be nearly independent of its V magnitude. ...
  • Cosmogenic radioisotopes in the Almahata Sitta ureilite 
    Carla, T; Narendra, B; Paolo, C; Alberto, R; Gianna, V; Neeharika, S; Peter, J; Muawia, H. S; Ballabh, G. M (John Wiley & Sons, 2010-11)
    Asteroid 2008 TC3 was predicted to fall in Sudan on October 7, 2008, and 2 months later, 15 meteorite fragments were recovered from the Nubian Desert. Most of these fragments were classified as polymict ureilites. In the ...
  • Modeling the Subsurface Structure of Sunspots 
    Moradi, H; Baldner, C; Birch, A. C; Braun, D. C; Cameron, R. H; Duvall, T. L; Gizon, L; Haber, D; Hanasoge, S. M; Hindman, B. W; Jackiewicz, J; Khomenko, E; Komm, R; Rajaguru, S. P; Rempel, M; Roth, M; Schlichenmaier, R; Schunker, H; Spruit, H. C; Strassmeier, K. G; Thompson, M. J; Zharkov, S (Springer, 2010-11)
    While sunspots are easily observed at the solar surface, determining their subsurface structure is not trivial. There are two main hypotheses for the subsurface structure of sunspots: the monolithic model and the cluster ...
  • Vinnai Thandi Parpoma (Documentary) 
    Doordarshan Kendra, National, Podhigai,Chennai (2009-12-26)
  • First Results from the NOAO Survey of the Outer Limits of the Magellanic Clouds 
    Saha, A; Olszewski, E. W; Brondel, B; Olsen, K; Knezek, P; Harris, J; Smith, C; Subramaniam, A; Claver, J; Rest, A; Seitzer, P; Cook, K. H; Minniti, D; Suntzeff, N. B (IOP Publishing, 2010-12)
    We describe the first results from the Outer Limits Survey, an NOAO survey designed to detect, map, and characterize the extended structure of the Large and Small Magellanic Clouds (LMC and SMC). The survey consists of ...
  • Mapping the Diffuse Ultraviolet Sky with the Galaxy Evolution Explorer 
    Murthy, J; Henry, R. C; Sujatha, N. V (IOP Publishing, 2010-12)
    We present a map of the diffuse ultraviolet cosmic background in two wavelength bands (FUV: 1530 Å and NUV: 2310 Å) over almost 75% of the sky using archival data from the Galaxy Evolution Explorer (GALEX) mission. Most ...

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