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  • Long-term temporal variations in the areas of sunspot groups 
    Javaraiah, J (Elsevier, 2013-09-01)
    Recently, we analyzed the combined Greenwich and Solar Optical Observing Network (SOON) sunspot group data during the period 1874-2011 and studied variations in the annual numbers of small, large and big sunspot groups. ...
  • Long-term ultraviolet variability of Seyfert galaxies 
    Sukanya, N; Stalin, C. S; Joseph, P; Rakshit, S; Praveen, D; Damle, R (Indian Academy of Sciences, 2018-12)
    Flux variability is one of the defining characteristics of Seyfert galaxies, a class of active galactic nuclei (AGN). Although these variations are observed over a wide range of wavelengths, results on their flux variability ...
  • Long-term ultraviolet variability of Seyfert galaxies 
    Sukanya, N; Stalin, C. S; Joseph, P; Rakshit, S; Praveen, D; Damle, R (Indian Academy of Sciences, 2018-12)
    Flux variability is one of the defining characteristics of Seyfert galaxies, a class of active galactic nuclei (AGN). Although these variations are observed over a wide range of wavelengths, results on their flux variability ...
  • Long-term variability of the solar cycle in the Babcock-Leighton dynamo framework 
    Karak, B. B; Miesch, Mark (Cambridge University Press, 2018-02)
    We explore the cause of the solar cycle variabilities using a novel 3D Babcock– Leighton dynamo model. In this model, based on the toroidal flux at the base of the convection zone, bipolar magnetic regions (BMRs) are ...
  • Long-term variations in meridional flows 
    Javaraiah, J (Springer, 2010)
    Using sunspot group data from Greenwich and from the Solar Optical Observation Network during 1879–2008, we find that the mean meridional motion of the observed spot groups varies considerably on a time scale of about 10–20 ...
  • Long-Term Variations in Solar Differential Rotation and Sunspot Activity 
    Javaraiah, J; Bertello, L; Ulrich, R. K (Springer, 2005-12)
    The solar equatorial rotation rate, determined from sunspot group data during the period 1879 2004, decreased over the last century, whereas the level of activity has increased considerably. The latitude gradient term of ...
  • Long-term variations in the growth and decay rates of sunspot groups 
    Javaraiah, J (Springer, 2011-06)
    Using the combined Greenwich (1874 – 1976) and Solar Optical Observatories Network (1977 – 2009) data on sunspot groups, we study the long-term variations in the mean daily rates of growth and decay of sunspot groups. ...
  • Long-term variations in the intensity of plages and networks as observed in Kodaikanal Ca-K digitized data 
    Priyal, M; Singh, J; Ravindra, B; Kameshwaran Rathina, Somasundaram (Springer, 2017-07)
    In our previous article (Priyal et al. in Solar Phys. 289, 127, 2014) we have discussed the details of observations and methodology adopted to analyze the Ca-K spectroheliograms obtained at the Kodaikanal Observatory (KO) ...
  • Long-term variations in the mean meridional motion of the sunspot groups 
    Javaraiah, J (EDP Sciences, 2010-01)
    Aims. We seek the long-term variations close to the length of a solar cycle in the mean meridional motion of sunspot groups (a proxy of the meridional plasma flow). Methods. Using the largest set of available reliable ...
  • Long-term variations in the north–south asymmetry of solar activity and solar cycle prediction, III: prediction for the amplitude of solar cycle 25 
    Javaraiah, J (Elsevier B.V, 2015-01)
    The combined Greenwich and Solar Optical Observing Network (SOON) sunspot group data during 1874–2013 are analysed and studied the relatively long-term variations in the annual sums of the areas of sunspot groups in 0°–10°, ...
  • Long-Term Variations in the Solar Differential Rotation 
    Javaraiah, J (Springer, 2003-01)
    Using Greenwich data (1879 1976) and SOON/NOAA data (1977 2002) on sunspot groups we found the following results: (i) The Sun's mean (over all the concerned cycles during 1879 1975) equatorial rotation rate (A) is significantly ...
  • Long-Term Variations of the Solar Wind 
    Brandt, J. C (Astronomical Society of India, 1976-06)
  • Long-Wavelength Observations of Jets from Polar Regions of the Sun 
    Ramesh, R (Kluwer Academic Publishers, 1999-10)
    We report radio observations of enhanced emission associated with the extreme-ultraviolet (EUV) jets from polar coronal hole regions of the Sun, with the Gauribidanur radioheliograph (GRH). We have estimated the brightness ...
  • Longitude of the honourable East India Company's observatory at Madras 
    Taylor, T. G (The Royal Astronomical Society, 1845-06)
  • Longitudinal dependence of equatorial F region vertical plasma drifts in the dusk sector 
    Sastri, J. H (American Geophysical Union, 1996-02)
    The effect of solar activity on the postsunset peak of F region vertical plasma drift at Kodaikanal (77°28'E, dip 3°N) is determined as a function of season and for two levels of magnetic activity using extensive HF phase ...
  • Longitudinal flows in stellar magnetic flux tubes 
    Gokhale, M. H; Hiremath, K. M (Elsevier, 1986)
    It is shown that if a thin, isolated and untwisted magnetic flux tube, consisting of a current-free core bounded by a thin current sheath, is in an ‘overall’ equilibrium in a stratified atmosphere, then there is, in general, ...
  • Longitudinal shower development and its signature at observation level 
    Chitnis, V. R; Bhat, P. N (Astronomical Society of India, 2002)
    From a study of Cverenkov photon arrival times at various core distances at the observation level it has already been established that the photon front is well fitted with a spherical surface traveling at the speed of light ...
  • Longterm Photometry of Variables at ESO - Part Two - the Second Data Catalogue 1986-1990 
    Sterken, C; Manfroid, J; Anton, K; Barzewski, A; Bibo, E; Bruch, A; Burger, M; Duerbeck, H. W; Duemmler, R; Heck, A; Hensberge, H; Hiesgen, M; Inklaar, F; Jorissen, A; Juettner, A; Kinkel, U; Zongli, L; Mekkaden, M. V; Ng, Y. K; Niarchos, P; Puttmann, M; Szeifert, T; Spiller, F; Vandijk, R; Vogt, N; Wanders, I (European Southern Observatory, 1993-11)
    In this paper we present the second catalogue of photometric data in the Stromgren system obtained during the period October 1986 - September 1990 in the framework of the Long-Term Photometry of Variables (LTPV)program at ...
  • Loop I (the North Polar Spur) - A major feature of the local interstellar environment 
    Salter, C. J (Astronomical Society of India, 1983-03)
    This review concerns itself with Loop I (the North Polar Spur), an angular immense feature of the high latitude galactic continuum radio emission. Observations of relevance are presented ranging in wavelength from the radio ...
  • Lopsided spiral galaxies 
    Jog, C. J (Astronomical Society of India, 2000)
    The light distribution in disks of many spiral galaxies is non-axisymmetric or 'lopsided' with a spatial extent much larger along one half of a galaxy than the other, as in M101. Recent observations show that 30% of spiral ...

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