Publications of Astronomical Society of India: Recent submissions

  • Imaging Fabry-Perot spectroscopic observations on the planetary nebula NGC 1514 
    Muthumariappan, C; Anandarao, B. G; Banerjee, D. P. K (Astronomical Society of India, 1996)
  • Spectrophotometric observations of some Be stars 
    Singh, M; Sanwal, B (Astronomical Society of India, 1996)
    Using EG & G spectrograph coupled with reticon array detector and Optical Multichannel Analyser (OMA) at the Cassegrain focus of the 104 cm telescope of the U.P. State Observatory, Naini Tal, several well known bright Be ...
  • Spectrophotometry of RZ CAS 
    Chaubey, U. S (Astronomical Society of India, 1996)
    Spectrum scans of the eclipsing binary star RZ Cas at different phases in the wavelength range λλ 3300 - 7600 Amstrong taken through Hilger and Watts monochromator equipped with 104-cm telescope of Uttar Pradesh State ...
  • Near-infrared observations of nova Aquilae 1995 
    Kamath, U. S; Ashok, N. M; Chandrasekhar, T (Astronomical Society of India, 1996)
    JHK photometry of the slow, Fe-II type nova- Nova Aquilae 1995- obtained at the 1.2m Gurushikhar Infrared Telescope (GIRT) is presented here. Evidence for the presence of dust in the nova ejected based on these observations ...
  • Astronomical masers 
    Chandra, S (Astronomical Society of India, 1996)
  • Cataclysmic variables: interclass connections 
    Anupama, G. C (Astronomical Society of India, 1996)
    The observational properties of the subclasses of the Cataclysmic Variables; classical and recurrent novae, dwarf novae, intermediate polars and the polars are described here. An interclass connection based on the properties ...
  • Study of cosmic ray intensity variation during quiet interplanetary periods 
    Shrivastava, P. K; Shukla, R. P (Astronomical Society of India, 1996)
    Various solar controlled disturbances in interplanetary medium represented by solar flares, coronal holes, solar wind streams, generally produced significant decreases in cosmic ray intensity as well as enhancement in ...
  • Influence of differential rotation on the wave propagation in a spherical MHD system with an application to sun 
    Maity, S; Paul, S. N; Bondyopadhaya, R (Astronomical Society of India, 1996)
    The dispersion relation for the MHD waves in a homogeneous medium having differential rotaion has been derived by using spherical polar coordinates. It is found that, for equatorial flow the instability of waves is influenced ...
  • Total solar eclipse observations of 24 October 1995 from Meja Khas, Allahabad 
    Verma, V. K; Uddin, W; Gaur, V. P; Joshi, G. C; Bondal, K. R; Pant, P (Astronomical Society of India, 1996)
    Monochromatic coronal images during the total solar eclipse of 24 October 1995 were successfully obtained in 6374 Amstrong [Fe X]line. The experiment carried out a Meja Khas, Allahabad during the eclipse and the preliminary ...
  • Emission from the head of comet P/Halley during post-perihelion 
    Goraya, P. S; Rautela, B. S; Sanwal, B. B; Pandey, A. K; Duggal, H. K (Astronomical Society of India, 1996)
    Spectral scans of the head of periodic comet Halley (1982i)covering the wavelength range λλ 320 - 700 nm, are presented for five nights during the months of April an May, 1986. These observations were made when the ...
  • IPS observations of the solar wind at 327 MHz - A comparison with ULYSSES observations 
    Janardhan, P; Balasubramanian, V; Ananthakrishnan, S; Srivatsan, R (Astronomical Society of India, 1996)
    Extensive IPS observations at 327 MHz using the Ooty Radio Telescope (ORT) are presented. The observations spanning two and a half years starting in September 1992 covered two important periods during the Ulysses south ...
  • CCD imaging of Jupiter during its impact with Comet Shoemaker-Levy 9 : Observations from Jaisalmer 
    Tej, A; Chandrasekhar, T; Ashok, N. M; Ragland, S; Mathur, S. N; Jain, J (Astronomical Society of India, 1996)
    CCD imaging observations of Jupiter were carried out, from the desert location of Jaisalmer in Rajasthan, during the period of its collision with the comet Shoemaker-Levy 9. A Celestron 8 telescope was used with a Lynx PC ...
  • Highlights of observations of Total Solar Eclipse of October 24, 1995 
    Singh, J (Astronomical Society of India, 1996)
  • An overview of the conference 
    Christensen-Dalsgaard, J (Astronomical Society of India, 1996)
    An eminent solar physicist has been quoted as saying that " despite exquisite images we have of the Sun's surface, we know almost nothing about its interior" (Browne 1995). The conference offered an excellent opportunity ...
  • Results from the LOWL instrument 
    Schou, J; Tomczyk, S; Thompson, M. J (Astronomical Society of India, 1996)
    We present various results from one year of observations with the LOWL instrument, which is designed to observe oscillations with degrees l from 0 to about 100. Among the results shown is an inversion for the solar rotaion ...
  • Surface waves in a two layered fluid model with an inclined magnetic field 
    Satya Narayanan, A (Astronomical Society of India, 1996)
    We consider a simple two layer fluid model to investigate surface waves arising due to the interaction between two fluids of different densities. The interface separates the convection zone and the atmosphere of the Sun. ...
  • Surface effects on the solar oscillation frequencies 
    Narasimha, D (Astronomical Society of India, 1996)
    The solar p-mode frequencies and eigenfunctions are modified by four processes operative in the atmosphere and the subphotospheric layers which can be, to a good approximation, treated as surface phenomena; they are the ...
  • The p-mode spectra of the roAp stars 
    Martinez, Peter (Astronomical Society of India, 1996)
    This paper discusses the general properties of the p-mode spectra of roAp stars and provides a table of these properties for the 28 currently known roAp stars.
  • Helioseismic measurements of elemental abundances in the sun's interior 
    Kosovichev, A. G (Astronomical Society of India, 1996)
    The method of 'secondary' helioseismic inversion, in which the equations of state and the thermal balance are used in addition to the hydrostatic equations, have been applied to determine the helium abundance in the Sun's ...
  • Periodicities in the Sun's "Torsional MHD oscillations" and planetary configurations 
    Javaraiah, J (Astronomical Society of India, 1996)
    Recently, we studied the rotaion of sunspot gruoups during 1879-1976 and detected ~ 22-yr and a few more other periods 'even' and 'odd' parity torsional oscillations of the Sun (Javaraiah & Gokhale 1995a, b). In the present ...

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