IIA Institutional Repository

Browsing by Author "Shylaja, B. S"

Browsing by Author "Shylaja, B. S"

Sort by: Order: Results:

  • The He II line 4686 in WN binaries 
    Shylaja, B. S (Indian Academy of Sciences, 1987-06)
    The behaviour of the λ4686 line of He II in various WN binaries is studied for variations in total flux as well as radial velocities. It appears that the true motion of the WN component is not depicted by this line especially ...
  • How Normal are the Peculiar A-Stars 
    Babu, G. S. D; Shylaja, B. S (Astronomical Society of the Pacific, 1993-02)
  • The infrared fluxes of early type stars 
    Shylaja, B. S (Astronomical Society of India, 1994)
    It is well known that the strong winds of the early type stars modify the fluxes in the infrared and radio wavelength regions. This aspect has been used here to explain the infrared fluxes by the method of 'curve of growth'. ...
  • IR observations of Am stars 
    Shylaja, B. S; Ashok, N. M (Astronomical Society of India, 2002)
    The IR observations of chemically peculiar stars are carried out and compared with the previous data in IR and far IR from IRAS. The flux redistribution appears to be a common phenomenon in all the stars of this class. The ...
  • Life on Europa? 
    Shylaja, B. S (Astronomical Society of India, 1997)
  • On the radii of Ap and Am stars 
    Babu, G. S. D; Shylaja, B. S (D. Reidel Publishing Co., 1983-01)
    The radii of several Ap and Am stars have been compared with those of the normal A stars of the main sequence. Though the brighter Ap stars have a little larger radii than the main sequence stars, they may not be much ...
  • Photometry of BD -7 deg 3007 
    Shylaja, B. S (Kluwer Academic Publishers, 1987-02)
    Photometric observations of BD -7°3007 in B and V filters are reported. Rapid flickering appears to be present at all phases, implying an unfavourable angle of inclination of orbit for seeing eclipse effects. A modulation ...
  • Photometry of EX Hya 
    Shylaja, B. S (Kluwer Academic Publishers, 1985-04)
    Photometric observations of EX Hya in B and V filters are reported. The 67 min modulation of the light curve is also found to be in good agreement with the results of earlier studies. The (B-V) colour variation with respect ...
  • Re-analysis of close binary systems 
    Indulekha, K; Kundt, W; Shylaja, B. S (Kluwer Academic Publishers, 1990-10)
    The facts indicating that large line-forming regions occur among the best-studied close binaries are outlined. It is pointed out that emission lines are often redshifted while absorption lines are blueshifted, emission ...
  • Recent outburst of U ScorpII 
    Shylaja, B. S; Prabhu, T. P (Indian Institute of Astrophysics, 1979-11)
    A photoelectric scan of Hβ and a photographic spectrum between λλ 4500-7000 obtained during the 1979 outburst of the recurrent nova U Sco have been studied. The electron density and the mass of ionized hydrogen in the nova ...
  • The solar corona in the He II line 
    Shylaja, B. S (Indian Institute of Astrophysics, 1997)
    The corona of the sun was photographed with the filters centered at 4686Å, 4921 Å and 5812 Å, on 24th October 1995, during totality at Nim Ka Thana The PDS scans of these Images were presented The differences In the contours ...
  • Spatial distribution of molecules and dust within the coma of Comet Halley 
    Sivaraman, K. R; Babu, G. S. D; Shylaja, B. S; Rajamohan, R (European Space Agency, 1986-12)
    Spectral scans of comet Halley were made at high spatial resolution using the Cassegrain focus (f/13) of the 102 cm reflector at Kavalur (India). The scans cover the wavelength region from 3900 to 6200 A and at 40 A ...
  • Spectrophotometric Observations of GAMMA-2-VELORUM 
    Shylaja, B. S (Astronomical Society of India, 1990)
  • Spectrophotometric studies of Am stars 
    Babu, G. S. D; Shylaja, B. S (D. Reidel Publishing Company, 1982-04)
    The relationships among the various physical parameters, namely the effective temperatures, radii and bolometric magnitudes, determined on the basis of the energy distribution curves of 25 Am stars are investigated. The ...
  • Spectrophotometric studies of Ap stars 
    Babu, G. S. D; Shylaja, B. S (D. Reidel Publishing Company, 1982-01)
    Based on the observed energy distribution curves of about a hundred Ap stars, the various relationships among their physical parameters: namely, the temperatue, colour index, bolometric correction and bolometric magnitude ...
  • Spectrophotometric studies of CO Cephei 
    Shylaja, B. S (Indian Academy of Sciences, 1986-09)
    Spectrophotometric and spectroscopic observations of CQ Cep, the shortest-period binary with a WN component, are presented. Excepting the N V 4603 A, the fluxes of all other emission lines show enhancement at minima. They ...
  • A spectrophotometric study of the Wolf-Rayet star HD 50896 
    Shylaja, B. S (Indian Academy of Sciences, 1986-12)
    New spectrophotometric observations of the Wolf-Rayet system HD 50896 are presented and interpreted in terms of its binary nature. The lines of N V, N IV and C IV show moderate variations which can be explained using a ...
  • Spectrophotometry of Comet P/Halley. I - Flux, column density and emission gradients within the coma in the emission bands and the continuum 
    Sivaraman, K. R; Babu, G. S. D; Shylaja, B. S; Rajamohan, R (European Southern Observatory, 1987-11)
    The authors made spectral scans of comet P/Halley using the scanner at the Cassegrain focus (f/13) of the 102 cm reflector at Kavalur. The scans cover generally the wavelength region from 3900 to 6200 Å and are at 40 Å ...
  • Spectrophotometry of Nova Coronae Austrinae, 1981 
    Shylaja, B. S (D. Reidel Publishing Co., 1984-10)
    Spectrophotometric observations of Nova Coronae Austrinae 1981, during its nebular phase are reported. The various emission lines are identified. The electron densities and the mass of the ionized hydrogen in the shell ...
  • Spectrophotometry of Nova Muscae 1983 
    Shylaja, B. S (The observatory, 1983-08)

Search DSpace

Browse

My Account