IIA Institutional Repository

Browsing IIAP Publications by Title

Browsing IIAP Publications by Title

Sort by: Order: Results:

  • Minutes-duration optical flares with supernova luminosities 
    Ho, Anna Y. Q; Perley, Daniel A; Chen, Ping; Schulze, Steve; Dhillon, Vik; Kumar, Harsh; Suresh, Aswin; Swain, Vishwajeet; Bremer, Michael; Smartt, Stephen J; Anderson, Joseph P; Anupama, G. C; Awiphan, Supachai; Barway, Sudhanshu; Bellm, Eric C; Ben-Ami, Sagi; Bhalerao, Varun; de Boer, Thomas; Brink, Thomas G; Burruss, Rick; Chandra, Poonam; Chen, Ting-Wan; Chen, Wen-Ping; Cooke, Jeff; Coughlin, Michael W; Das, Kaustav K; Drake, Andrew J; Filippenko, Alexei V; Freeburn, James; Fremling, Christoffer; Fulton, Michael D; Gal-Yam, Avishay; Galbany, Lluís; Gao, Hua; Graham, Matthew J; Gromadzki, Mariusz; Gutierrez, Claudia P; Hinds, K. -Ryan; Inserra, Cosimo; Nayana, A. J; Karambelkar, Viraj; Kasliwal, Mansi M; Kulkarni, Shri; Muller-Bravo, Tomas E; Magnier, Eugene A; Mahabal, Ashish A; Moore, Thomas; Ngeow, Chow-Choong; Nicholl, Matt; Ofek, Eran O; Omand, Conor M. B; Onori, Francesca; Pan, Yen-Chen; Pessi, Priscila J; Petitpas, Glen; Polishook, David; Poshyachinda, Saran; Pursiainen, Miika; Riddle, Reed; Rodriguez, Antonio C; Rusholme, Ben; Segre, Enrico; Sharma, Yashvi; Smith, Ken W; Sollerman, Jesper; Srivastav, Shubham; Strotjohann, Nora Linn; Suhrx, Mark; Svinkin, Dmitry; Wang, Yanan; Wiseman, Philip; Wold, Avery; Yang, Sheng; Yang, Yi; Yao, Yuhan; Young, David R; Zheng, WeiKang (Springer Nature, 2023-11-30)
    In recent years, certain luminous extragalactic optical transients have been observed to last only a few days1. Their short observed duration implies a different powering mechanism from the most common luminous extragalactic ...
  • Misaligned Jets from Sgr A* and the Origin of Fermi/eROSITA Bubbles 
    Sarkar, Kartick C; Mondal, Santanu; Sharma, Prateek; Piran, Tsvi (American Astronomical Society, 2023-07-01)
    One of the leading explanations for the origin of Fermi Bubbles is past jet activity in the Galactic center supermassive black hole Sgr A*. The claimed jets are often assumed to be perpendicular to the Galactic plane. ...
  • Mode classification and wave propagation in a magnetically structured medium 
    Hasan, S. S; Sobouti, Y (Blackwell, 1987-09)
    The authors examine the structure of motions that can occur in a vertical magnetic flux tube with a rectangular cross-section. A polytropic stratification is assumed in the vertical direction. The authors use a gauged ...
  • A model for relativistic disk emission, flow and variability 
    Mohan, Prashanth; Mangalam, A (Astronomical Society of India, 2015-04)
    Orbiting features near a black hole can cause variability in optical/UV and X-ray bands with quasi-periodic signatures. The variable flux is derived in Kerr geometry including the following relativistic effects: light ...
  • A Model for Simulating Realistic Profiles of Pulsars 
    Thomas, R. M. C; Gupta, Y; Gangadhara, R. T (American Institute of Physics, 2011-08)
    We devise an accurate method to compute the emission profile corresponding to a given set of pulsar emission parameters, for eg. inclination angle alpha, impact angle beta, frequency of emission omega, Lorentz factor gamma, ...
  • A Model for the Extended Dust Shell around the Supergiant R Coronae Borealis 
    Nagendra, K. N; Leung, C. M (American Astronomical Society, 1990)
  • A model for the millisecond pulsar PSR 1937 + 214 
    Kochhar, R. K; Sivaram, C (Springer, 1984-01)
    The authors suggest a model for the millisecond pulsar PSR 1937+214, according to which the immediate progenitor of the pulsar was a binary consisting of two neutron stars of unequal mass. The heavier neutron star was spun ...
  • Model for the relationship of granulation and supergranulation 
    Krishan, V (The University of Arizona Press, 1991)
    In this report a mechanism is proposed for producing the observed solar supergranulation from the photospheric granulation by a dissipative decay of two-dimensional turbulence, which leads to concentration of the energy ...
  • Model of 'steady' Parts of Rotation and Magnetic Field in the Sun's Convection Zone 
    Hiremath, K. M; Gokhale, M. H (European Space Agency, 1995-06)
    We present a preliminary model of the ‘steady’ parts of rotation and magnetic field in the sun’s convective envelope, which vary on diffusion time scales, within the frame work of axisymmetric incompressible hydromagnetics ...
  • Model of a fluxtube with a twisted magnetic field in the stratified solar atmosphere 
    Sen, Samrat; Mangalam, A (Elsevier B.V, 2018-01-15)
    We build a single vertical straight magnetic fluxtube spanning the solar photosphere and the transition region which does not expand with height. We assume that the fluxtube containing twisted magnetic fields is in ...
  • A model of solar granulation through inverse cascade 
    Krishan, V (Royal Astronomical Society, 1991-05)
    Nonlinear interactions between small fluid elements in an energetically open system facilitate the formation of large coherent stable structures. This is known as self-organization. Solar granulation on all scales is ...
  • A model of the 'steady' and 'fluctuating' parts of the sun's internal magnetic field 
    Gokhale, M. H; Hiremath, K. M (American Astronomical Society, 1993-04-10)
    We model the structure of the 'steady' (slowest varying) part of the sun's internal poloidal magnetic field assuming it to be (for given reasons and in the relevant domain) a current-free field whose field lines 'isorotate' ...
  • A Model of the Generation Mechanism of Type II Solar Radio Bursts 
    Thejappa, G (Indian Institute of Astrophysics, Bangalore, 1986)
    The proposed model for the generation mechanism of type II solar radio bursts is based on the fact that a small fraction of ions is reflected from the shock front and tend to evolve into a 'ring' in the downstream region ...
  • A Model Reflection Nebula in the Far Infrared 
    Shah, G. A; Krishna-Swamy, K. S (American Astronomical Society, 1981-01)
    We have considered a model of a reflection nebula with the star within a homogeneous plane-parallel slab of 1 pc thickness. The model is intended to imitate the Merope reflection nebula. The illuminating star is located ...
  • Modeling a Coronal Mass Ejection as a Magnetized Structure with EUHFORIA 
    Sindhuja, G; Singh, J; Asvestari, E; Prasad, B. R (IOP Publishing, 2022-01-20)
    We studied an Earth-directed coronal mass ejection (CME) that erupted on 2015 March 15. Our aim was to model the CME flux rope as a magnetized structure using the European Heliospheric Forecasting Information Asset (EUHFORIA). ...
  • Modeling approaches in helioseismology 
    Rajaguru, S. P (Cambridge University Press, 2015)
    The theory of hydrodynamics or, where necessary, magneto hydrodynamics, provides an appropriate mathematical framework to study solar and stellar oscillations. Well-developed hydrodynamic descriptions of global oscillations ...
  • Modeling Dust Jets And Shells From Comet Hale-Bopp 
    Vasundhara, R; Chakraborty, P; Hänel, A; Heiser, E (Kluwer Academic Publishers, 1997-07)
    Persistent jet and shell structures from comet Hale-Bopp showing gradual changes in the shapes and orientations with aspect angle and solar illumination geometry indicate long lived active sources. A model to simulate the ...
  • Modeling of Jets from Comet Hale-Bopp (C/1995 O1): Observations from the Vainu Bappu Observatory 
    Vasundhara, R; Chakraborty, P (Academic Press, 1999-07)
    Jet and shell structures from Comet Hale-Bopp during the period October 1996 to October 1997 using data from the Vainu Bappu Observatory are modeled. Evolution of jet and shell structures during the period of observations ...
  • Modeling of polarization of radio pulsars 
    Gangadhara, R. T (Astronomical Society of the Pacific, 2009-09)
    We have generalized the coherent curvature radiation model to include the detailed geometry of the emission region in pulsar magnetosphere, and deduced the polarization state in terms the Stokes parameters. By considering ...
  • Modeling of short scale turbulence in the solar wind 
    Krishan, V; Mahajan, S. M (European Geosciences Union, 2005-01)
    The solar wind serves as a laboratory for investigating magnetohydrodynamic turbulence under conditions irreproducible on the terra firma. Here we show that the frame work of Hall magnetohydrodynamics (HMHD), which can ...

Search DSpace


Browse

My Account