IIA Institutional Repository

Browsing IIAP Publications by Title

Browsing IIAP Publications by Title

Sort by: Order: Results:

  • Advanced Methods for Improving the Efficiency of a Shack Hartmann Wavefront Sensor 
    Vyas, A; Roopashree, M. B; Prasad, B. R (InTech, 2012-01)
  • Advances in spectral classification 
    Giridhar, S (Astronomical Society of India, 2010-03)
    In this article we give an overview of the developments in the field of spectral classification, its continued importance in the fields of stellar and galactic evolution. The extension of MK system to cool stars as well ...
  • Aerosol optical properties retrieved using Skyradiometer at Hanle in western Himalayas 
    Neeharika, V; Bagare, S. P; Shantikumar, N. S; Rajendra, B. S (Elsevier B. V., 2010-01)
    A Skyradiometer was installed at Hanle in Ladakh, in October 2007 as a part of the site characterization program for the proposed National Large Solar Telescope project. Aerosol optical depth (AOD), single scattering albedo ...
  • Aerosol radiative forcing over a high-altitude station Merak, in the trans-Himalayan region during advection of anthropogenic events from the Indo-Gangetic Plain 
    Shantikumar, N. S; Bagare, S. P; Srivastava, A. K; Sohn, B. J; Song, H.-J; Larson, E (Elsevier B.V, 2014-12)
    Advection of anthropogenic aerosols from the Indo-Gangetic Plain (IGP) and dust aerosols from distant deserts towards a high-altitude station Merak, in the trans-Himalayan region are reported during June–July 2011. In order ...
  • After the fall: from Adam and Eve to apples and elevators 
    Vishveshwara, C. V (Inter-University Center for Astronomy and Astrophysics, 1998)
  • The afterglow and the host galaxy of GRB 011211 
    Jakobsson, P; Hjorth, J; Fynbo, J. P. U; Gorosabel, J; Pedersen, K; Burud, I; Levan, A; Kouveliotou, C; Tanvir, N; Fruchter, A; Rhoads, J; Grav, T; Hansen, M. W; Michelsen, R; Jensen, B. L; Pedersen, H; Thomsen, B; Weidinger, M; Bhargavi, S. G; Cowsik, R; Pandey, S. B (The European Southern Observatory, 2003-09)
    We present optical, near-infrared, and X-ray observations of the optical afterglow (OA) of the X-ray rich, long-duration gamma-ray burst GRB 011211. Hubble Space Telescope (HST) data obtained 14, 26, 32, and 59 days after ...
  • Age Analysis of Extrasolar Planets: Insight from Stellar Isochrone Models 
    Swastik, C; Banyal, R. K; Narang, Mayank; Unni, Athira; Sivarani, T (American Astronomical Society, 2024-06-03)
    There is growing evidence from stellar kinematics and galactic chemical evolution suggesting that giant planets (MP 0.3MJ) are relatively young compared to the most commonly occurring population of small planets (MP < ...
  • Age aspects of habitability 
    Safonova, M; Murthy, J; Shchekinov, Yu. A (Cambridge University Press, 2016-04)
    A ‘habitable zone’ of a star is defined as a range of orbits within which a rocky planet can support liquid water on its surface. The most intriguing question driving the search for habitable planets is whether they host ...
  • Age Distribution of Exoplanet Host Stars: Chemical and Kinematic Age Proxies from GAIA DR3 
    Swastik, C; Banyal, R. K; Narang, Mayank; Unni, Athira; Banerjee, Bihan; Manoj, P; Sivarani, T (American Astronomical Society, 2023-09-01)
    The GAIA space mission is impacting astronomy in many significant ways by providing a uniform, homogeneous, and precise data set for over 1 billion stars and other celestial objects in the Milky Way and beyond. Exoplanet ...
  • Age Sequence in Small Clusters Associated with Bright-Rimmed Clouds 
    Ogura, K; Chauhan, N; Pandey, A. K; Bhatt, B. C; Ojha, D; Itoh, Y (Astronomical Society of Japan, 2007-02)
    Bright-rimmed clouds (BRCs) found in HII regions are probable sites of triggered star formation due to compression by ionization/shock fronts, and it is hypothesized that star formation proceeds from the exciting star(s) ...
  • The AGN and gas disk in the low surface brightness galaxy PGC045080 
    Das, M; Kantharia, N; Ramya, S; Prabhu, T. P; McGaugh, S. S; Vogel, S. N (Blackwell Publishing, 2007-07)
    We present radio observations and optical spectroscopy of the giant low surface brightness (LSB) galaxy PGC 045080 (or 1300+0144). PGC 045080 is a moderately distant galaxy having a highly inclined optical disc and massive ...
  • Alfred Wegener –From Continental Drift to Plate Tectonics 
    Saigeetha, A. J; Banyal, R. K (Indian Academy of Sciences, 2005-06)
  • Alfven waves in a gravitational field with flows 
    Satya Narayanan, A; Kathiravan, C; Ramesh, R (Cambridge University Press, 2009-03)
    The gravitational stratification effect on magnetohydrodynamic waves at a single interface in the solar atmosphere has been studied in the penumbral region of the sunspot recently. The existence of slow and fast magneto ...
  • The Alfven-Carlquist double-layer theory of solar flares 
    Hasan, S. S; Ter Haar, D (Kluwer Academic Publishers, 1978-06)
    We use the Vlasov equations for ions and electrons to develop a theory of a double layer in which there are both free and trapped electrons and ions. We find the equations which replace the Langmuir condition and the Bohm ...
  • Alfvén vortices in nonuniform dusty magnetoplasmas 
    Shukla, P. K; Varma, R. K; Krishan, V; Mckenzie, J. F (The American Physical Society, 1993-01)
    The Alfvén waves are shown to be linearly coupled with finite-frequency convective cell modes in a nonuniform cold dusty magnetoplasma. The dynamics of weakly interacting finite-amplitude electromagnetic oscillations is ...
  • 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 ...
  • Aligning and phasing segmented mirror telescope with the pyramid sensor 
    Jacob, A; Parihar, P; Sindhu, Divakaran; James, Melvin.K (SPIE--The International Society for Optical Engineering, 2018-07)
    Alignment and Phasing system (APS) is one of essential device for any segmented mirror telescope. It helps to align and phase mirror segments, so that all together they works like a monolithic surface. Over last two years ...
  • All sky scanning cloud monitor for NLOT site survey 
    Sharma, T. K; Parihar, P. S; Kemkar, P. M. M (IOP Publishing, 2015-05)
    Monitoring local sky for the cloud is one of important task before setting-up a new observatory. Here we present the design, implementation and initial results of a scanning type cloud monitor developed in Indian Institute ...
  • Alleviating the H0 and σ8 anomalies with a decaying dark matter model 
    Pandey, Kanhaiya L; Karwal, Tanvi; Das, Subinoy (IOP Publishing, 2020-07)
    The Hubble tension between the ΛCDM-model-dependent prediction of the current expansion rate H0 using Planck data and direct, model-independent measurements in the local universe from the SH0ES collaboration disagree at ...
  • ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): A Hot Corino Survey toward Protostellar Cores in the Orion Cloud 
    Hsu, Shih-Ying; Liu, Sheng-Yuan; Liu, Tie; Sahu, Dipen; Lee, Chin-Fei; Tatematsu, Kenichi; Kim, Kee-Tae; Hirano, Naomi; Yang, Yao-Lun; Johnstone, Doug; Liu, Hongli; Juvela, Mika; Bronfman, Leonardo; Chen, Huei-Ru Vivien; Dutta, Somnath; Eden, David J; Jhan, Kai-Syun; Kuan, Yi-Jehng; Lee, Chang Won; Lee, Jeong-Eun; Li, Shanghuo; Liu, Chun-Fan; Qin, Sheng-Li; Sanhueza, Patricio; Shang, Hsien; Archana Soam; Traficante, Alessio; Zhou, Jianjun (American Astronomical Society, 2022-03-10)
    The presence of complex organic molecules (COMs) in the interstellar medium is of great interest since it may link to the origin and prevalence of life in the universe. Aiming to investigate the occurrence of COMs and their ...

Search DSpace


Browse

My Account