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Browsing Publications of Astronomical Society of India by Author "Banerjee, D. P. K"

Browsing Publications of Astronomical Society of India by Author "Banerjee, D. P. K"

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  • The effect of aberrations on image quality - A study for the 1.2m Gurusikhar Infrared Telescope 
    Banerjee, D. P. K; Bobra, A. D; Subhedar, D. V (Astronomical Society of India, 1997)
    The achromatic aberrations, which in general affect image quality in telescopes, have been studied in context of the 1.2 m Gurusikhar Infrared Telescope. The analysis gives the magnitudes of aberrations for different fields ...
  • FLAGS - A Fibre Linked Astronomical Grating Spectrograph 
    Banerjee, D. P. K; Rawat, S. D; Pathan, F. M; Anandarao, B. G (Astronomical Society of India, 1999)
    The design and construction of a fibre - linked grating spectrograph, developed for astronomical studies, is described here. The spectrograph has a resolving power of about 10,000 over the visible region (4000 - 7000 ...
  • 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)
  • IR Spectroscopy of Nova-like Sources 
    Banerjee, D. P. K; Ashok, N. M (Astronomical Society of India, 2003)
    Near - IR spectroscopic and photometric observations of the eruptive variables V838 Mon and V445 Puppis in the J H K bands are reported. These objects erupted in nova-like explosions but evolved into rather unique and ...
  • JHK Spectroscopy of the Enigmatic Variable V445 Puppis 
    Ashok, N. M; Banerjee, D. P. K (Astronomical Society of India, 2003)
    Near-IR spectroscopic observations are reported for the enigmatic, nova-like, variable V445 Puppis. The near-IR spectra are hydrogen-deficient and unusually rich in CI lines. The spectra indicate that the object could be ...
  • Limited Seeing Measurements at Mount Abu Infrared Observatory 
    Ashok, N. M; Banerjee, D. P. K (Astronomical Society of India, 2002-12)
    Measurements of atmospheric seeing for the Mount Abu Infrared Observatory, Gurusikhar are presented. Observations made with a differential image motion monitor, between 6 December 1999 to 28 April 2000, give an ...
  • Near-infrared spectroscopy of Nova Sagittarii 2001 (V4643 Sgr) 
    Ashok, N. M; Banerjee, D. P. K; Varricatt, W. P (Astronomical Society of India, 2002-09)
    Near-infrared spectra of the very fast ReiN-type nova, Nova Sagittarii 2001 (V464a Sgr) obtained in the early decline phase and the period 110 to 170 days after the discovery date are presented. The spectrum in the early ...
  • On the accuracy of the caustic test 
    Banerjee, D. P. K; Willstrop, R. V; Anandarao, B. G (Astronomical Society of India, 1999)
  • Pointing-accuracy for the 1.2m Gurushikhar telescope - measurement and improvement 
    Bobra, A. D; Subhedar, D. V; Banerjee, D. P. K (Astronomical Society of India, 1998)
  • Studies of the peculiar nova V4332 Sgr 
    Banerjee, D. P. K (Astronomical Society of India, 2005-06)
    We discuss our recent observations of the interesting but enigmatic nova-like variable V4332 Sgr. The object shows a remarkably rich near-infrared and optical spectrum with several unusual spectral features generally not ...
  • Velocity field structure in the Orion Nebula 
    Seema, P; Banerjee, D. P. K; Anandarao, B. G (Astronomical Society of India, 1993)
    High quality interferograms have been obtained on the H II region in the Orion Nebula in the emission line of (OIII) 5007 A using the high resolution imaging Fabry-Perot spectrometer. Velocity profiles were obtained for ...

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