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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 diagnostics for compact HII regions- I 
    Mookerjea, B; Ghosh, S. K (Astronomical Society of India, 1999)
    Compact H II regions have been modelled realistically covering multidimensional parameter space in an effort to develop diagnostic tools. These models consist of embedded exciting ZAMS stars with a spherical cloud of dust ...
  • Infrared diagnostics for compact HII regions- II 
    Mookerjea, B; Ghosh, S. K (Astronomical Society of India, 1999)
    Compact H II regions have been realistically modelled to identify the wavelength regime and type of observables, which are crucial for understanding the physical conditions of the same. Spherically symmetric interstellar ...
  • 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 ...
  • 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'. ...
  • The infrared imaging spectrograph (IRIS) for TMT: latest science cases and simulations 
    Wright, S. A; Walth, G; Do, T; Marshal, D; Larkin, J. E; Moore, A. M; Adamkovics, M; Andersen, D; Armus, L; Barth, A; Cote, Patrick; Cooke, J; Chisholm, E. M; Davidge, T; Dunn, J. S; Dumas, C; Ellerbroek, B. L; Ghez, A. M; Hao, J; Hayano, Y; Liu, M; Lopez-Rodriguez, E; Lu, J. R; Mao, S; Marois, C; Pandey, S. B; Phillip, A. C; Schoeck, M; Subramaniam, A; Subramanian, S; Suzuki, R; Tan, J. C; Terai, T; Treu, T; Simard, L; Weiss, J. (SPIE-The International Society for Optical Engineering, 2016-07)
    The Thirty Meter Telescope (TMT) first light instrument IRIS (Infrared Imaging Spectrograph) will complete its preliminary design phase in 2016. The IRIS instrument design includes a near-infrared (0.85 - 2.4 micron) ...
  • Infrared L'band (lambda-cen- ~3.9 mu-m) observations with TIFR near-infrared camera (TIRCAM). 
    Ojha, D. K; Ghosh, S. K; Verma, R. P; Anandarao, B. G (Astronomical Society of India, 2003)
    TIRCAM is based on the SBRC InSb Focal Plane Array (58 x 62 pixels) sensitive between 1- 5 μm. TIRCAM system is described in Ojha et al. (2002). TIRCAM had its first light observations during March-April 2001 from Gurusikhar ...
  • Infrared observations of UV CAS 
    Kameswara Rao, N (The Observatory, 1980-10)
  • Infrared Photometer system for Astronomical Observations 
    Shivanandan, K; Scaria, K. K; Nair, R. M; Rajamohan, R; Sivaraman, K. R (Indian Institute of Astrophysics, Bangalore, 1987)
    An infrared photometer system has been developed for photometry of astronomical sources in the spectral band 1 to 5 microns. The characteristics of the system and preliminary engineering tests using the 1- m optical ...
  • Infrared photometry of giants in the globular cluster NGC 4833 
    Seal, P (Astronomical Society of Indian, 1986-09)
    Infrared broad band JHK photometry is presented for 21 red giants in the metal-poor globular cluster NGC 4833. The color magnitude and color-color correlations are discussed. Bolometric luminosities are calculated from ...
  • Infrared polarisation study of Lynds 1340: A case of RNO 8 
    Rai, Archita; Ganesh, Shashikiran (Indian Academy of Sciences, 2023-06)
    This paper describes the polarisation study of a Lynds cloud, LDN 1340, α = 2h32m and δ = 73◦00 corresponding to galactic coordinates of = 130◦.07 and b = 11◦.6, with emphasis on the RNO 8 area. The cloud has been ...
  • Infrared properties of planetary nebulae with [WR] and wels central stars 
    Muthumariappan, C; Parthasarathy, M (Oxford University Press on behalf of the Royal Astronomical Society, 2020-03)
    We report the infrared (IR) properties of planetary nebulae (PNe) with Wolf–Rayet (WR) type and wels central stars known to date and compare them with the IR properties of a sample of PNe with H-rich central stars. We use ...
  • Infrared Solar Radiation Measurement during Total Solar Eclipse 
    Jain, S. L; Arya, B. C; Singh, S. K; Tripathi, O. P; Hamid, A (Indian Institute of Astrophysics, Bangalore, 1997)
    The occurrence of Total Solar Eclipse on October 24, 1995 provided an unique opportunity to conduct some experiments using IR sun photometers in the spectral range 0.75 micrometer to 1.6 micrometer and 205 to 14.5 micrometer ...
  • Infrared Space Observatory Spectra of R Coronae Borealis Stars. I. Emission Features in the Interval 3-25 Microns 
    Lambert, D. L; Kameswara Rao, N; Pandey, G; Ivans, I. I (American Astronomical Society, 2001-07)
    Infrared Space Observatory 3-25 μm spectra of the R Coronae Borealis stars V854 Cen, R CrB, and RY Sgr are presented and discussed. Sharp emission features coincident in wavelength with the well-known unidentified emission ...
  • 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 ...
  • Infrared spectroscopic diagnostics for initial mass function 
    Ghosh, S. K; Mookerjea, B (Astronomical Society of India, 1999)
    The diagnostic values of various atomic/ nebular infrared spectral lines of relatively abundant elements (in different ionization states) in Galactic star forming regions, have been studied quantitatively. The code CLOUDY ...
  • Infrared spectroscopy of Jovian aurorae 
    George, K; Chandrasekhar, T (Astronomical Society of India, 2005-06)
    We report on the detection at Mt.Abu of H+ 3 molecular ion emissions in the near infrared spectra of the northern auroral zone of Jupiter. These H+3 transitions are of rotational-vibrational origin and are due to the ...
  • Infrared studies of circumstellar matter of evolved stars 
    Anandarao, B. G (Astronomical Society of India, 1999)
  • Infrared study of the first identified helium nova V445 Puppis 
    Ashok, N. M (Astronomical Society of India, 2005-06)
    The eruptive variable V445 Puppis has been proposed by us as the first observed Helium nova. The absence of hydrogen lines in the early optical spectra showed the peculiar nature of this object. We have observed V445 Pup ...
  • Inhibition of convective collapse of solar magnetic flux tubes by radiative diffusion 
    Venkatakrishnan, P (Nature Publishing Group, 1986-07)
    Proctor and Weiss (1982) have indicated that the interaction of convection with a magnetic field leads to an intermittent distribution of magnetic flux. Such a process can lead to 'equipartition fields' of 700 G which ...

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