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Browsing IIAP Publications by Title

Browsing IIAP Publications by Title

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  • Periodicities in the Solar Differential Rotation, Surface Magnetic Field and Planetary Configurations 
    Javaraiah, J; Gokhale, M. H (Springer, 1995-04)
    Using Greenwich data on sunspot groups during 1874–1976, we have studied the temporal variations in the differential rotation parametersA andB by determining their values during moving time intervals of lengths 1–5 yr ...
  • Permanent electric dipole moment of strontium monofluoride as a test of the accuracy of a relativistic coupled-cluster method 
    Srinivasa Prasannaa, V; Abe, M; Das, B. P (The American Physical Society, 2014-11)
    The permanent electric dipole moment of the X2Σ+ electronic ground state of the strontium monofluoride molecule is calculated using a relativistic coupled-cluster method. Our result is compared with those of other calculations ...
  • Permanent electric dipole moments of alkaline-earth-metal monofluorides: Interplay of relativistic and correlation effects 
    Srinivasa Prasannaa, V; Sreerekha, S; Abe, M; Bannur, V. M; Das, B. P (The American Physical Society, 2016-04)
    The interplay of the relativistic and correlation effects in the permanent electric dipole moments of the X 2Σ+ electronic ground states of the alkaline-earth-metal monofluorides (BeF, MgF, CaF, SrF, and BaF) has been ...
  • Personal - Computer based spectrum scanner 
    Srinivasan, R; Surendiranath, R (Council of Scientific and Industrial Research, 1991-04)
    The advent of personal computers (PC) has resulted in flexible and low cost solution for the control and acquisition of data from spectrum scanner used with optical telescopes. The PC enables user- friendly dialogue for ...
  • Personal computer based star changing device and occultation data acquisition system 
    Srinivasan, R; Naidu, B. N; Vasundhara, R (Council of Scientific & Industrial Research, 1993-01)
    This paper describes a personal computer interface card developed for occultation studies with the 1 m telescope at VBO Kavalur. The new feature of this system is the application of a personal computer for the accurate ...
  • A personal-computer-based imaging Stokes polarimeter for solar observations 
    Ananth, A. V; Venkatakrishnan, P; Narayanan, R. S; Bhattacharyya, J. C (Springer, 1994-05)
    For measurements of vector magnetic field over solar active regions, a Stokes polarimeter for studying the polarization profiles on selected spectral lines is described. This paper gives details of the relevant charged ...
  • Perturbative calculations of P, T-odd effects in heavy polar diatomic molecules 
    Nayak, M. K; Chaudhuri, R. K (Institute of Physics, 2007-09)
    A fully-relativistic second order many-body perturbation theory (MBPT(2)) is employed to compute the P, T-odd interaction constant Wsub/d of the ground (2sup/Σ/sub1/2) states of YbF and BaF molecules. Since MBPT(2) ...
  • Phase characteristics of reflecting and transmitting type twisted nematic spatial light modulators 
    Roopashree, M. B; Vyas, A; Banyal, R. K; Prasad, B. R (Central Scientific Instruments Organisation (CSIR), 2009-11)
    The phase characteristics of reflecting and transmitting type twisted nematic liquid crystal based Spatial Light Modulators (SLMs) were measured using interferometry. Device parameters like contrast, brightness, input ...
  • Phase diagram of a bosonic ladder with two coupled chains 
    Sethi Luthra, M; Mishra, T; Pai, R. V; Das, B. P (American Physical Society, 2008-10)
    We study a bosonic ladder with two coupled chains using the finite size density matrix renormalisation group method. We show that in a commensurate bosonic ladder the critical on-site interaction ($U_C$) for the superfluid ...
  • Phase matrices for higher multipoles of scattering in external magnetic fields 
    Oo, Y. Y; San, P. P; Sampoorna, M; Nagendra, K. N; Ramachandran, G (Astronomical Society of the Pacific, 2009-06)
    Scattering phase matrices for forbidden lines are derived, in the presence of an external magnetic field, using the quantum electrodynamical approach. The particular case of 0 -> 2 -> 0 M2 transitions are considered and ...
  • Phase separation in a two species Bose mixture 
    Mishra, T; Pai Ramesh, V; Das, B. P (The American Physical Society, 2007-07)
    We study the ground state quantum phase diagram for a two species Bose mixture in a one-dimensional optical lattice using the finite size density matrix renormalization group(FSDMRG) method. We discuss our results for ...
  • Phase Shifts Measured in Evanescent Acoustic Waves above the Solar Photosphere and Their Possible Impacts on Local Helioseismology 
    Zhao, Junwei; Rajaguru, S. P; Chen, Ruizhu (IOP Publishing, 2022-07-01)
    A set of 464 minutes of high-resolution high-cadence observations were acquired for a region near the Sun's disk center using the Interferometric BI-dimensional Spectrometer installed at the Dunn Solar Telescope. Ten sets ...
  • Phase Transition and Hybrid Star in a Nonlinear $\sigma - \omega$ model 
    Acharya, S; Maharana, L; Mohanty, R; Panda, P. K (World Scientific, 1999-04)
    The phase transition between the nuclear matter and the quark matter is examined. The relativistic mean field theory(RMF) is consider with interacting nucleons and mesons using TM1 parameter set for the nuclear matter ...
  • Phase transition to quarks in dense neutron matter - Effect of instanton interactions 
    Datta, B (Kluwer Academic Publishers, 1988-07)
    Instanton effects are found to affect non-trivially the neutron matter to quark matter phase transition density. The relevance of the results for neutron stars is pointed out.
  • Phase variability of Sq (H) on normal quiet days in the equatorial electrojet region 
    Sastri, J. H (Royal Astronomical Society, 1982-10)
    From a study of ‘abnormal quiet days’ (AQDs) at equatorial latitudes it was found earlier (Sastri) that the occurrence of an abnormal Sq(H) phase confined to the equatorial electrojet belt is closely associated with the ...
  • Phase variabilty of Sq (H) and the ionospheric equatorial anomaly 
    Sastri, J. H (The Council of Scientific and Industrial Research, 1982-04)
    A study is made of the behaviour of the equatorial ionization anomaly m the Indian region on days with an abnormal S/subq (H) phase limited to the electrojet belt. The anomaly is found to disappear or reduce in strength quite ...
  • Phase-separated charge-density-wave phase in the two-species extended Bose-Hubbard model 
    Mishra, T; Sahoo, B. K; Pai, R. V (The American Physical Society, 2008-07)
    We study the quantum phase transitions in a two component Bose mixture in a one-dimensional optical lattice. The calculations have been performed in the framework of the extended Bose-Hubbard model using the finite size ...
  • Phase-Space Constraints on Neutrino Luminosities 
    Sivaram, C; Arun, K; Samartha, C. A (World Scientific Publishing Co., 2008-06-28)
    While the importance of phase space constraints for gravitational clustering of neutrinos (which are fermions) is well recognized, the explicit use of such constraints to limit neutrino emission from ultra energetic sources ...
  • The PHEMU03 catalogue of observations of the mutual phenomena of the Galilean satellites of Jupiter 
    Arlot, J. E; Thuillot, W; Ruatti, C; Ahmad, A; Amosse, A; Anbazhagan, P; Andreyev, M; Antov, A; Appakutty, M; Aubry, S; Asher, D; Spampinato, S. A; Stellmacher, I; Trunkovsky, E; Tejfel, V; Tudose, V; Turcu, V; Ugarte, I; Vantyghem, P; Vasundhara, R; Vaubaillon, J; Baron, N; Velu, C; Venkataramana, A. K; Vidal Sãinz, J; Vienne, A; Vilar, J; Vingerhoets, P; Vollman, W; Bassiere, N; Berthe, M; Bogdanovski, R; Bosq, F; Bredner, E; Buettner, D; Buromsky, M; Cammarata, S; Casas, R; Chis, G. D; Christou, A. A; Coquerel, J. P; Corlan, R; Cremaschini, C; Crussaire, D; Cuypers, J; Dennefeld, M; Descamps, P; Devyatkin, A; Dimitrov, D; Dorokhova, T. N; Dorokhov, N. I; Dourneau, G; Dueñas, M; Dumitrescu, A; Emelianov, N; Ferrara, D; Fiel, D; Fienga, A; Flatres, T; Foglia, S; Garlitz, J; Gerbos, J; Gilbert, R; Goncalves, R. M. D; Gonzales, D; Gorda, S. Y; Gorshanov, D. L; Hansen, M. W; Harrington, M; Irsmambetova, T. R; Ito, Y; Ivanova, V; Izmailov, I. S; Khovritchev, M. Y; Khrutskaya, E. V; Kieken, J; Kiseleva, T. P; Kuppuswamy, K; Lainey, V; Lavayssiere, M; Lazzarotti, P; Le Campion, J. F; Lellouch, E; Li, Z. L; Lo Savio, E; Lou, M; Magny, E; Manek, J; Marinello, W; Marino, G; McAuliffe, J. P; Michelli, M; Moldovan, D; Montagnac, S; Moorthy, V; Nickel, O; Nier, J. M; Noel, T; Noyelles, B; Oksanen, A; Parrat, D; Pauwels, T; Priban, V; Ramachandran, B; Rambaux, N; Rapaport, M; Rapavy, P; Rau, G; Sacre, J. J; Sada, P. V; Salvaggio, F; Sarlin, P; Sciuto, C; Selvakumar, G; Sergeyev, A; Sidorov, M; Sorescu, S (EDP Sciences, 2009-01)
    Context: In 2003, the Sun and the Earth passed through both the equatorial plane of Jupiter and therefore the orbital planes of its main satellites. Aims: During this period, mutual eclipses and occultations were observed ...
  • The PHEMU15 catalogue and astrometric results of the Jupiter's Galilean satellite mutual occultation and eclipse observations made in 2014-2015 
    Saquet, E; Emelyanov, N; Robert, V; Arlot, J. -E; Anbazhagan, P; Baillie, K; Bardecker, J; Berezhnoy, A. A; Bretton, M; Campos, F; Capannoli, L; Pomazan, A; Popescu, M; Pratt, A; Raskhozhev, V. N; Resch, J.-M; Robilliard, D; Roschina, E; Rothenberg, E; Rottenborn, M; Rusov, S. A; Talbot, J; Saby, F; Saya, L. F; Selvakumar, G; Signoret, F; Slesarenko, V. Y; Sokov, E. N; Soldateschi, J; Sonka, A; Soulie, G; Tejfel, V. G; Thuillot, W; Timerson, B; Toma, R; Torsellini, S; Trabuco, L. L; Traverse, P; Tsamis, V; Unwin, M; Carry, B; Van Den Abbeel, F; Vandenbruaene, H; Vasundhara, R; Velikodsky, Y. I; Vienne, A; Vilar, J; Vugnon, J. -M; Wuensche, N; Zeleny, P; Castet, M; Charbonnier, Y; Chernikov, M. M; Christou, A; Colas, F; Coliac, J. -F; Dangl, G; Dechambre, O; Delcroix, M; Dias-Oliveira, A; Drillaud, C; Duchemin, Y; Dunford, R; Ellington, C; Fabre, P; Filippov, V. A; Finnegan, J; Foglia, S; Font, D; Gaillard, B; Galli, G; Garlitz, J; Gasmi, A; Gaspar, H. S; Gault, D; Gazeas, K; George, T; Gorda, S. Y; Gorshanov, D. L; Gualdoni, C; Guhl, K; Halir, K; Hanna, W; Henry, X; Herald, D; Houdin, G; Ito, Y; Izmailov, I. S; Jacobsen, J; Jones, A; Kamoun, S; Kardasis, E; Karimov, A. M; Khovritchev, M. Y; Kulikova, A. M; Laborde, J; Lainey, V; Lavayssiere, M; Guen, P. Le; Leroy, A; Loader, B; Lopez, O. C; Lyashenko, A. Y; Lyssenko, P. G; Machado, D. I; Maigurova, N; Manek, J; Marchini, A; Midavaine, T; Montier, J; Morgado, B. E; Naumov, K. N; Nedelcu, A; Newman, J; Ohlert, J. M; Oksanen, A; Pavlov, H; Petrescu, E (Oxford University Press on behalf of the Royal Astronomical Society, 2018-03)
    During the 2014–2015 mutual events season, the Institut de M ́ ecanique C ́ eleste et de Calcul des ́ Eph ́ em ́ erides (IMCCE), Paris, France, and the Sternberg Astronomical Institute (SAI), Moscow, Russia, ...

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