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  • Survey for roAp stars in the northern sky from Naini Tal 
    Ashoka, B. N; Seetha, S; Raj, E; Chaubey, U. S; Gupta, S. K; Joshi, S; Martinez, P; Kurtz, D. W; Sagar, R; Kasturirangan, K (Astronomical Society of India, 2000)
    Of the 31 known rapidly oscillating Ap (roAp) stars, 28 are in the southern sky and majority of them were discovered at SAAO indicating that a systematic survey also is needed in the northern sky. Therefore, a project has ...
  • Survey of Li-rich giants among Kepler and LAMOST fields: determination of Li-rich giants' evolutionary phase 
    Raghubar Singh; Reddy, B. E; Bharat Kumar, Y; Antia, H. M (IOP Publishing, 2019-06-10)
    In this Letter, we report the discovery of 24 new super Li-rich (A(Li) ≥ 3.2) giants of He-core burning phase at the red clump region. Results are based on a systematic search of a large sample of about 12,500 giants common ...
  • 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 ...
  • A survey of red stars in the direction of the Large Magellanic Cloud. 2. Some regions around the bar. 
    Bappu, M. K. V; Parthasarathy, M; Scaria, K. K (Indian Institute of Astrophysics, 1978)
    We have continued the survey for red stars in the direction of the large Magellanic Cloud using the technique of ultra-low dispersion spectroscopy. This paper which is the second one on the series lists 706 stars located ...
  • A Survey of Red Stars in the Direction of the Large Magellanic Cloud. III. Some Regions North of Bar 
    Bappu, M. K. V; Parthasarathy, M; Scaria, K. K (Indian Institute of Astrophysics, Bangalore, 1985-11)
    We have continued the survey for red stars in the direction of the Large Magellanic Cloud using the technique of ultra-low dispersion spectroscopy. In this paper we list 310 red stars located north of L M C bar. Finding ...
  • A Survey of Red Stars in the Direction of the Large Magellanic Cloud: The 30 Doradus Region 
    Bappu, M. K. V; Parthasarathy, M; Scaria, K. K (Indian Institute of Astrophysics, Bangalore, 1977)
    We have commenced a survey of red stars in the direction of the Large Magellanic Cloud using the technique of ultra-low dispersion spectroscopy. This first paper is a listing of the red stars in the 30 Doradus region for ...
  • A Survey of the Solar Atmospheric Models 
    Abhyankar, K. D (Astronomical Society of India, 1977-06)
  • Survivability of cosmological quark nuggets in the chromoelectric flux-tube fission model of baryon evaporation 
    Bhattacharjee, P; Alam, J. E; Sinha, B; Raha, S (The American Physical Society, 1993-11-15)
    The question of the survivability of quark nuggets against the process of baryon evaporation from their surfaces is studied within the context of a dynamical model, namely, the chromoelectric flux-tube fission model of ...
  • Survival of Population III stars 
    Dutta, Jayanta; Sur, Sharanya; Stacy, Athena; Bagla, Jasjeet Singh (Cambridge University Press, 2018-05)
    In our earlier studyDutta (2016a), it has been shown that a number of primordial protostars (the ‘first stars’ in the Universe, also known as Population III or Pop III stars) are being ejected from the cluster of their ...
  • Suzaku X-ray spectral study of the Compton-thick Seyfert galaxy NGC 5135 
    Singh, V; Risaliti, G; Braito, V; Shastri, P (Wiley-Blackwell, 2012-01)
    We present the 0.5–50 keV Suzaku broad-band X-ray spectral study of the Compton-thick active galactic nucleus (AGN) in NGC 5135. The Suzaku observation provides the first detection of NGC 5135 above 10 keV that allowed us, ...
  • SW Lacertae - A quadruple system 
    Panchatsaram, T; Abhyankar, K. D (Astronomical Society of India, 1981-03)
    Orbital period study using photoelectric times of minima of SW Lac revelas that the period change is caused by the orbital motion of a triple system around a fourth body. The orbital periods of the third and the fourth ...
  • SWASTi-CME: A Physics-based Model to Study Coronal Mass Ejection Evolution and Its Interaction with Solar Wind 
    Mayank, Prateek; Vaidya, Bhargav; Mishra, Wageesh; Chakrabarty, D (American Astronomical Society, 2024-01)
    Coronal mass ejections (CMEs) are primary drivers of space weather, and studying their evolution in the inner heliosphere is vital to prepare for a timely response. Solar wind streams, acting as background, influence their ...
  • 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 ...
  • SWIFT J0503.7-2819: a nearly synchronous intermediate polar below the period gap? 
    Rawat, Nikita; Pandey, J. C; Joshi, Arti; Scaringi, Simone; Yadava, Umesh (Oxford University Press on behalf of Royal Astronomical Society, 2022-12)
    Based on the X-ray observations from XMM–Newton and Swift, and optical observations from Transiting Exoplanet Survey Satellite (TESS) and AAVSO, we present temporal and spectral properties of probable intermediate polar ...
  • Swing amplification in stars and gas: Origin of local spirit structure in galaxies 
    Jog, C. J (Astronomical Society of India, 1993)
    We present a study of the growth of local, non-axisymmetric perturbations in gravitationally coupled stars and gas in differentially rotating galactic disk. The amplified perturbations in stars and gas constitute trailing, ...
  • Symposium on "Some Aspects of Astrophysics" 
    Varma, R. K (Astronomical Society of India, 1974-12)
  • Synchronization in binary stars 
    Rajamohan, R; Venkatakrishnan, P (Astronomical Society of India, 1981-12)
    Radiative dissipation of the dynamical tide is found to be inadequate in explaining the observed synchronization between orbital and rotational motions of the main sequence components of early-type binary stars. The ...
  • The synthesis of Al-26 during combined hydrogen and helium-burning reactions 
    Goswami, A; Ramadurai, S; Duorah, H. L (Springer Netherlands, 1992-02)
    The synthesis of Al-26 during combined hydrogen and helium-burning processes in high temperature and density conditions is studied. The possible sites for these processes are believed to be the neutron star surfaces where ...
  • A System for Recording Phase Path Variations of Ionospheric Reflections 
    Sastri, J. H; Ramesh, K. B; Ramamoorthy, K. S (Indian Institute of Astrophysics, Bangalore, 1985-11)
    An experimental set-up developed for continuous recording of the phase path variations of reflections at normal incidence from discrete regions of the terrestrial ionosphere is described. Salient features of the system ...
  • Systematics of jets using multi-wavelength data 
    Shastri, P; Gomez, E. J; Gupta, M; Madejski, G (Cambridge University Press, 2015-03)
    We investigate the systematics of the properties of highly relativistic jets at multiple frequencies, including Fermi, and MOJAVE data. We test the hypothesis that the blazar divide constitutes a dichotomy. We also explore ...

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