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  • Near infrared photometry of unassociated IRAS point sources in the zodiacal belt 
    Ashok, N. M; Chandrasekhar, T; Ragland, S; Watson, P. V (Astronomical Society of India, 1993)
    An observational program to generate a list of bright near infrared sources using IRAS Point Source Catalogue for further studies using lunar occultation technique has been initiated at Physical Research Laboratory, ...
  • Near Infrared PICNIC Imager (NIPI) - A Progress Report 
    Deep, A; Ramaprakash, A. N; Tandon, S. N; Gupta, R; Burse, M. P; Chordia, P. A; Das, H. K; Engineer, S; Kohok, A. A; Mestry, V. B (Astronomical Society of India, 2003)
    In the ASI 2002 meeting we presented a preliminary design of Near Infrared PICNIC Imager (Deep et al, 2002). In this paper we will show the progress that has been made since then.
  • Near Infrared PICNIC Imager (NIPI) for IUCAA Telescope 
    Deep, A; Ramaprakash, A. N; Tandon, S. N; Gupta, R; Burse, M. P; Chordia, P. A; Das, H. K; Engineer, S; Kohok, A. A; Mestry, V. B (Astronomical Society of India, 2002-09)
    In this paper we present the current status of development of the Near Infrared PICNIC Imager (NIPI), which will be the first near-ffi instrument on IUCAA telescope. When used at one of the Cassegrain side ports of ...
  • A near infrared polarimeter for astrophysical studies 
    Joshi, U. C; Manian, K. S. B; Chauhan, J. S; Shah, V; Chitre, A; Ganesh, S; Deshpande, M. R (Astronomical Society of India, 1997)
    A state-of the-art near infrared photo polarimeter was designed and developed at Physical Research Laboratory, Ahmedabad, India to undertake the study of star forming regions, symbiotic stars and AGB stars etc. The instrument ...
  • Near Infrared polarimeter for extended sources 
    Manian, K. S. B; Shah, V; Thomas, M; Joshi, U. C; Ganesh, S (Astronomical Society of India, 1999)
    A state of art near IR polarimeter was designed and developed at Physical Research Laboratory, Ahmedabad and the polarimeter is operational for the last three years. During the last one year a new mode of operation has ...
  • The Near Infrared Spectra of Wolf Rayet Stars 
    Bappu, M. K. V; Ganesh, K. S; Scaria, K. K (Indian Institute of Astrophysics, Bangalore, 1977)
    The near infrared spectra of three Wolf-Rayet stars of the carbon sequence and five of the nitrogen sequence have been studied. Wavelength identifications and intensity scans are presented to show the emission line ...
  • Near Infrared Survey of the Galactic Nuclear Bulge Region 
    Baliyan, K. S; Ganesh, S; Joshi, U. C; Glass, I. S (Astronomical Society of India, 2003)
    Inner 300 pc of the Galactic Center region is surveyed with the SIR-IUS camera mounted on the InfraRed Survey Facility (IRSF) telescope of the SAAO, during June-July 2002, resulting in the deepest near infrared view of the ...
  • Near IR lunar occultation observations and results from Gurushikhar observatory 
    Chandrasekhar, T (Astronomical Society of India, 1999)
    Lunar occultation in the near infrared is an elegant and effective technique of achieving high angular resolution in the range of milliarcseconds. Apart from determining with good accuracy the angular diameter and effective ...
  • Near IR study of the young cluster NGC 2453 
    Hasan, P; Kilambi, G. C; Baliyan, K. S (Astronomical Society of India, 2001)
    In an attempt to understand early phases of stellar evolution and star formation, we have taken up the study of extremely young star clusters in the near infrared wavebands. These clusters are deeply embedded inside the ...
  • Near simultaneous BV photometry and Hα spectroscopy of the RS Canum Venaticorum binary DM Ursae Majoris 
    Mohin, S; Raveendran, A. V (European Southern Obseravatory, 1994-06)
    Differential BV photometry of DM UMa obtained over 19 nights and near simultaneous Hα spectroscopy obtained over 7 nights during the 1990-91 observing season are presented. From an analysis of the available data we find ...
  • The near ultraviolet transient surveyor (NUTS): An ultraviolet telescope to observe variable sources 
    Ambily, S; Sarpotda, Mayuresh; Mathew, Joice; Binukumar, G; Sreejith, A. G; Nirmal, K; Murthy, J; Safonova, M; Mohan, Rekhesh; Aggarval, Vinod Kumar; Nagabhushanam, S; Jeeragal, Sachin (Springer, 2022-08)
    Observing the ultraviolet (UV) sky for time-varyiable phenomena is one of the many exciting science goals that can be achieved by a relatively small aperture telescope in space. The Near Ultraviolet Transient Surveyor ...
  • Near UV imager with an MCP-based photon counting detector 
    Ambily, S; Mathew, J; Mayuresh, Sarpotdar; Sreejith, A. G; Nirmal, K; Prakash, A; Safonova, M; Murthy, J (SPIE-The International Society for Optical Engineering, 2016-07)
    We are developing a compact UV Imager using light weight components, that can be own on a small CubeSat or a balloon platform. The system has a lens-based optics that can provide an aberration-free image over a wide field ...
  • Near-infrared and optical imaging of Q2345+007: The largest gravitationally lensed QSO system? 
    Gopal-Krishna; Yates, M; Wiita, P. J; Smette, A; Pati, A. K; Altieri, B (The European Southern Observatory, 1993-12)
    We have taken K, R, V, and B band images of Q 2345+007, which has been claimed to be the gravitationally lensed quasar with the widest separation between the two images (approximately equal 7 arcsec), although the lens ...
  • Near-Infrared and Optical Morphology of the Dusty Galaxy NGC 972 
    Mayya, Y. D; Ravindranath, S; Carrasco, L (The American astronomical Society, 1998-10)
    Near-infrared (NIR) and optical surface photometric analyses of the dusty galaxy NGC 972 are presented. The photometric profiles in the BVRJHK bands can be fitted with a combination of Gaussian and exponential profiles, ...
  • Near-infrared and optical studies of the fast nova V4643 Sgr (Nova Sagittarii 2001) 
    Ashok, N. M; Banerjee, D. P. K; Varricatt, W. P; Kamath, U. S (Blackwell Publishing, 2006-05)
    V4643 Sagittarii or Nova Sagittarii 2001 was discovered in outburst at 7.7 mag on 2001 February 24. Here, we present near-infrared results of this fast classical nova obtained in the early decline phase in 2001 March ...
  • Near-infrared imaging of barred halo-dominated low surface brightness galaxies 
    Honey, M; Mousumi Das; Ninan, J. P; Manoj, P (Oxford University Press on behalf of the Royal Astronomical Society, 2016-10-21)
    We present a near-infrared (NIR) imaging study of barred low surface brightness (LSB) galaxies using the TIFR NIR Spectrometer and Imager. LSB galaxies are dark matter dominated, late-type spirals that have low-luminosity ...
  • Near-Infrared Investigations of Star Forming Regions 
    Anandarao, B. G (Astronomical Society of India, 2002-09)
    We have initiated an observational programme on star formation using the 256 x 256 HgCd'Th Infrared Array Camera.(NICMOS3) at the 1.2 m m telescope in Mt. Abu. The observations, being made in the spectral region 1-2.5 pm, ...
  • Near-infrared JH photometry of young open cluster Be 59 
    Sharma, S; Ogura, K; Pandey, A. K; Ojha, D. K; Bhatt, B. C (Astronomical Society of India, 2007)
    We present near-infrared J H photometry and optical slitless spectroscopy of stars in the field of the young cluster Be 59. The J /(J- H )colour-magnitude diagram of the cluster yields a distance modulus of (m - M )0= 10.0 ...
  • 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 ...
  • A near-infrared photometer for the 1-m telescope of Vainu Bappu Observatory 
    Mishra, Anwesh Kumar; Kamath, U. S (Indian Academy of Sciences, 2021-04)
    A near-infrared photometer based on an InGaAs PIN photodiode and the filter set recommended by Infrared Working Group (IRWG) have been designed and built. It is mounted on the 1-m Carl–Zeiss telescope at the Vainu Bappu ...

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