Publications of Astronomical Society of India: Recent submissions

  • First light observations with TIFR near-infrared camera 
    Ojha, D. K; Ghosh, S. K; Verma, R. P; Chakraborti, A; Anandarao, B. G (Astronomical Society of India, 2002-09)
    The TIFR near-infrared camera (TmCAM) is based on the SBRC InSb focal plane array (58x62 pixels) sensitive between 1-5 pm. TIRCAM had its first engineering run at Gurusikhar 1.2 meter PRL telescope at Mount Abu during ...
  • Characterization of MOEMS-based adaptive mirror for wavefront correction 
    Chinnappan, V; Saxena, A. K; Sreenivasan, A (Astronomical Society of India, 2002-09)
    In real-time wavefront compensation techniques, a conjugate surface of the incoming aberrated wavefront is to be created in real-time. Two types of mirrors are used for this purpose. The first one is a tip-tilt mirror ...
  • Performance of the low light level CCD camera for speckle imagmg 
    Saha, S. K; Chinnappan, V (Astronomical Society of India, 2002-09)
    A new generation CCD detector caJ.led low light level OOD (L3CCD) that performs like an intensified CCD without incorporating a micro channel plate (MOP) for light amplification was procured and tested. A series of ...
  • Performance evaluation of high-speed camera system for adaptive optics 
    Chinnappan, V; Saxena, A. K; Sreenivasan, A (Astronomical Society of India, 2002-09)
    Atmospheric turbulence distorts the incoming wavefront from the star light, thus severely limiting the resolution of the groundbased optical telescopes (Fried 1966). Adaptive optics is being implemented in all big ...
  • A remote-controlled fast infrared photometer for simultaneous lunar occultation observations in K and L bands - successful observations of two M3 giants 
    Mondal, S; Chandrasekhar, T; Kikani, P. K (Astronomical Society of India, 2002-09)
    Details of successful use of a new high speed infrared photometer for recording lunar occultation light curves simultaneously in K (2.2 /..Lm) and L (3.6 fJ.m) bands are presented, The photometer has also a provision to ...
  • Science from Astrosat 
    Singh, K. P (Astronomical Society of India, 2002-09)
    ASTROSAT is an X-ray and UV observatory that is planned to be launched in 2006 A.D. It will cover the entire X-ray spectral hand from 0.3 to 150 keY in one mission, with simultaneous UV observations in the 1350 - 3000 ...
  • Soft X-ray Imaging Telescope on ASTROSAT 
    Singh, K. P (Astronomical Society of India, 2002-09)
    A Soft X-ray focusing Telescope (SXT) with an X-ray sensitive CCD camera at the focal plane is being developed for the ASTROSAT. Made from conical foil mirrors with a CeD detector in the focal plane SXT will have a ...
  • Science with IUCAA telescope 
    Srianand, R; Gupta, R; Kembhavi, A; Ramaprakash, A. N; Tandon, S. N (Astronomical Society of India, 2002-09)
    We present a brief overview of the proposed astronomical observations using the first light instrument !FOSC for the WCAA 2 m telescope.
  • 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 ...
  • IUCAA 2 meter telescope and its first light instrument IFOSC 
    Gupta, R; Burse, M; Das, H. K; Kohok, A; Ramaprakash, A. N; Engineer, S; Tandon, S. N (Astronomical Society of India, 2002-09)
    The various features of the IUCAA 2-meter telescope, its site parameters and considerations made for preserving the local seeing in terms of ventilation, thermal emissivity of the dome etc are described. The first ...
  • Seyfert galaxies: Nuclear radio structure and unification 
    Lal, D. V (Astronomical Society of India, 2002-09)
    We have observed a sample of Seyfert (Sy) galaxies with global Very Long Baseline Interferometry (VLBI) to test predictions of the unification scheme which hypothesizes that Sys of Type 1 and of Type 2 constitute a single ...
  • Recent observations of lES2344+514 and PSR 0355+54 with TACTIC Imaging Element 
    Tickoo, A. K; Dhar, V. K; Yadav, K. K; Rannot, R. C; Bhattacharyya, S; Chandra, P; Goyal, H. C; Kaul, C. L; Kaul, R. K; Kothari, M; Kotwal, S; Koul, R; Sahayanathan, S; Sapru, M. L; Sharma, M; Venugopal, K; Bhatt, N; Bhatt, C. L (Astronomical Society of India, 2002-09)
    The TACTIC Imaging Element has observed the active galaxy 1ES 2344+514 and the pulsar PSR 0355+54 during Oct-Nov, 2001. Analysis of the recorded events, collected for a period of 70 hours on both these sources reveals ...
  • Full resolution deconvolved images from the Mauritius Radio Telescope 
    Pandey, V. N; Oozeer, N; Shankar, N. U; Somanah, R (Astronomical Society of India, 2002-09)
  • Ejection of quasars from galaxies and the variable mass hypothesis 
    Das, P. K (Astronomical Society of India, 2002-09)
    The present work investigates the dynamics of ejection of quasars from galaxies in the Variable Mass Hypothesis (VMH), originally discussed by Narlikar & Das to provide a theoretical interpretation of the observed ...
  • A comparative study of the intra-night optical variability of powerful AGNs 
    Stalin, C. S; Gopal-Krishna; Sagar, R; Wiita, P. J (Astronomical Society of India, 2002-09)
    In order to address a currently much debated issue, we are carrying out a systematic search for intra-night optical micro-variability in major classes of powerful (M'II ~ -23.0 mag) active galactic nuclei (AGNs). Our ...
  • Polarization study of BL Lacertae objects on pc-scales 
    Kharb, P; Gabuzda, D; Shastri, P (Astronomical Society of India, 2002-09)
    We present results of the VLBA3 polarization observations of "X-ray selected" BL Lac objects from the HEAO-l survey and also a few from the ROSAT-Green Bank (RGB) sample. These primarily high energy peaked BL Lacs (HBLs) ...
  • Dust Properties in Early-type Galaxies 
    Patil, M. K; Sahu, D. K; Pandey, S. K; Kembhavi, A. K; Joshi, U. C; Baliyan, K. S; Singh, M (Astronomical Society of India, 2002-09)
  • Radio Studies of young core collapse supernovae 
    Chandra, P; Ray, A; Bhatnagar, S (Astronomical Society of India, 2002-09)
    Multi-frequency observations of two radio bright SNe (SN1993J, SN1979C) carried out over a year with GMRT are presented. Their radio light curves trace the evolution of the mass loss in the stellar wind before the pre-supernova ...
  • Observations of the type IIp supernova 2001X during the plateau phase 
    Anupama, G. C; Sahu, D. K (Astronomical Society of India, 2002-09)
  • A GMRT H I imaging survey of the ERIDANUS group of galaxies 
    Omar, A; Dwarakanath, K. S; Anantharamaiah, K. R (Astronomical Society of India, 2002-09)
    This project aims to image a subset of galaxies in the nearby Eridanus group in H I emission and in radio continuum using the GMRl'. The typical resolution of H I images will be ",1 kpc with a 30" sensitivity to H I ...

Search DSpace


Browse

My Account