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Browsing by Author "Rengarajan, T. N"

Browsing by Author "Rengarajan, T. N"

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  • Infrared colors of RS CVn binaries 
    Rengarajan, T. N; Verma, R. P; Iyengar, K. V. K (Astronomical Society of India, 1993)
    IRAS 1D COADD data for 82 RS CVn systems have been analysed to obtain their magnitudes at 12 and 25 micrometers. Their colors V - (12) and (12) - (25) have been computed and discussed. For 62 stars, the excess at 12 ...
  • Infrared emission from IRAS 00338+6312 
    Mookerjea, B; Ghosh, S. K; Karnik, A. D; Rengarajan, T. N; Tandon, S. N; Verma, R. P (Astronomical Society of India, 1999)
    The Galactic star forming region associated with IRAS 00338+6312 has been mapped in 2 Far Infrared (FIR) bands centered around 140 & 185 μm, using the TIFR 100 cm balloon-borne telescope with liquid 3/sup He cooled bolometer ...
  • Infrared spectral energy distribution of four star forming regions 
    Karnik, A. D; Ghosh, S. K; Rengarajan, T. N; Tandon, S. N; Verma, R. P (Astronomical Society of India, 1999)
    Star forming regions associated with IRAS 19181+1349, 20255+3712, 20178+4046 and 10049+5657 have been mapped simultaneously in two far infrared bands (λeff ~ 130 and 210 µm), using TIFR 1m balloon borne telescope with ...
  • Mapping of the Orion molecular cloud in the [CII] line and continuum at 158 μm 
    Mookerjea, B; Ghosh, S. K; Kaneda, H; Nakagawa, T; Ojha, D. K; Rengarajan, T. N; Shibai, H; Verma, R. P (Astronomical Society of India, 2001)
    A fabry Perot Spectrometer (FPS) tuned to the astrophysically interesting (CII) line at 157.7409 µm, developed at ISAS (Japan) has been successfully interfaced to the TIFR 100 cm far-infrared balloon borne telescope. A ...
  • Mid-infrared observations of three compact HII regions and PAH emission 
    Verma, R. P; Ghosh, S. K; Karnik, A. D; Mookerjea, B; Rengarajan, T. N (Astronomical Society of India, 1999)
  • Near infrared astronomy with moderate size telescopes 
    Rengarajan, T. N (Astronomical Society of India, 1998)
  • Simultaneous Radio and Hα Observations of Be-Stars 
    Rengarajan, T. N; Tarafdar, S. P; Ghosh, K. K (European Southern Observatory, 1990-03)
    We have observed 18 Be stars in the radio continuum at 2cm wavelength with the VLA on 7th February 1987. We observed 12 of the stars the same night in the optical using an H alpha filter and the rest subsequently. No radio ...
  • A two band far-infrared photometer with bolometer arrays 
    Verma, R. P; Rengarajan, T. N; Ghosh, S. K (Astronomical Society of India, 1993)
    A new two band photometer for the Tata Institute of Fundamental Research (TIFR) 1m balloon-borne telescope is described. The detector system consists of two arrays (of six detectors each) of liquid He-3 cooled bolometers. ...

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