Publications of Astronomical Society of India: Recent submissions

  • Evolution of metals and dust in the universe 
    Khare, P; Kulkarni, V. P; Lauroesch, L. T; Fall, S. M; York, D. G; Welty, D. E; Crotts, A. P. S; Truran, J. W; Nakamura, O (Astronomical Society of India, 2005-06)
    With the aim of determining the evolution of metals and dust in the universe, we have observed 8 Damped Lyman-alpha Absorbers (DLAs) with the Multiple Mirror Telescope and the Hubble Space Telescope at 0:1 < z < 1:5, ...
  • Optical observations of GRB afterglows from India 
    Sagar, R; Misra, K (Astronomical Society of India, 2005-06)
    Optical observations of GRB afterglows provide information about GRB distances as well as their isotropic/non-isotropic nature of emission. More than 30 GRB fields have been probed by us during 1999 to 2003, out of which ...
  • Advanced mergers of galaxies: luminosity profiles and dynamics 
    Jog, C. J (Astronomical Society of India, 2005-06)
    We have analyzed the near-IR Ks-band data from the 2MASS archival database for a large sample of twenty-seven galaxies that show signs of interaction but have a single nucleus. Surprisingly, half of these advanced mergers ...
  • Morphological analysis of intermediate redshift galaxies using the HST/ACS GOODS survey 
    Rawat, A; Kembhavi, A. K (Astronomical Society of India, 2005-06)
    We have been involved in performing photometry and morpholog- ical analysis of a large, complete sample of galaxies in the intermediate redshift range using the high resolution images obtained by the Great Observatories ...
  • Lenticular and other galaxies 
    Kembhavi, A. K; Barway, Sudhanshu; Ravi Kumar, C. D (Astronomical Society of India, 2005-06)
    We describe in this paper the surface photometry of a set of lenticular galaxies. We then consider important correlations between morphological parameters of the bulges of lenticulars and other types of galaxies
  • Monitoring of AGNs for variability from MIRO 
    Baliyan, K. S; Joshi, U. C; Ganesh, S (Astronomical Society of India, 2005-06)
    As a long term programme, a sample of blazars is being monitored from Mt Abu Infrared Observatory (MIRO). Blazars are the radio-loud AGNs with polarized, highly luminous and rapidly variable non-thermal continuum emission ...
  • A near-IR stellar spectral library in the H band using the Mt. Abu telescope 
    Gupta, R; Ashok, N. M; Singh, H. P; Ranade, A. C (Astronomical Society of India, 2005-06)
    We present an H band near-infrared (NIR) spectral library of 135 solar type stars covering spectral types O5-M3 and luminosity classes I-V as per MK classification. The observations were carried out with 1.2 meter Gurushikhar ...
  • Polycyclic aromatic hydrocarbons in interstellar medium 
    Rastogi, S (Astronomical Society of India, 2005-06)
    Polycyclic Aromatic Hydrocarbons (PAHs) are an important com- ponent of the Interstellar Medium (ISM). They are being used as probes for understanding of process and conditions of different astrophysical environments. The ...
  • Probing circumstellar dust formation through high resolution spectroscopy 
    Kameswara Rao, N (Astronomical Society of India, 2005-06)
    The existence of cool regions where dust can condense is explored in RCB stars at minimum
  • Near infrared photometry of the young clusters NGC 1960, NGC 2453 and NGC 2384 
    Hasan, P (Astronomical Society of India, 2005-06)
    The present paper gives a brief description of the observations and analysis of the young star clusters NGC 1960, NGC 2453 and NGC 2384 observed in the near infrared bands at the Mt Abu Infrared Observatory, Gurushikhar ...
  • Multiwavelength study of the inner regions of the Milky Way Galaxy 
    Ganesh, S; Joshi, U. C; Baliyan, K. S; Omont, A; Simon, G (Astronomical Society of India, 2005-06)
    The inner regions of the Milky Way have received a lot of attention in recent years. Multiwavelength observations have been made at varying spatial, temporal and spectral resolutions. We have studied the inner regions of ...
  • A near-infrared photometric study of the massive star forming region IRAS 21413+5442 
    Venkataraman, V; Anandarao, B. G (Astronomical Society of India, 2005-06)
    We report initial results from the near-infrared continuum studies on the massive star forming region IRAS 21413+5442. The colour-colour diagram and colour-magnitude diagram were used to determine the evolutionary stage ...
  • Star formation studies at TIFR 
    Ghosh, S. K (Astronomical Society of India, 2005-06)
    Studies of Galactic star forming regions being carried out at TIFR, is summarized. The techniques and typical results from these studies have been described brie y, which include: the balloon borne far infrared mapping in ...
  • Near-infrared photometric and spectroscopic studies on star forming regions 
    Anandarao, B. G (Astronomical Society of India, 2005-06)
    We have initiated a programme to study near-infrared photometry and spectroscopy of low and high mass star forming regions and young stellar objects using the HgCdTe 256 x 256 array camera/spectrograph at the 1.2 m telescope. ...
  • A recent multi-wavelength campaign to observe the microquasar SS433 
    Chakrabarti, S. K (Astronomical Society of India, 2005-06)
    We present a summary of the recent multiwavelength campaign made in September-October, 2002, to observe SS 433. We used the Giant Meterwave Radio Telescope (GMRT) for radio observation, 1.2 meter Physical Research Laboratory ...
  • Interpretation of angular diameter measurements of Mira variables: role of water 
    Tej, A; Lancon, A; Scholz, M (Astronomical Society of India, 2005-06)
    For stars with atmospheres as complex as those of Miras, determination of fundamental stellar parameters remains a challenge. Occurrence of water "shells" and their implication on the interpretation of the angular diameter ...
  • Evidence of asymmetry in Mira variable U Ori 
    Mondal, S (Astronomical Society of India, 2005-06)
    Near simultaneous, two high angular resolution observations by lunar occultation technique at the same wavelength (2.2mu m) but at different position angles (PA) result in two unique Uniform Disk (UD) angular diameters of ...
  • Lunar occultations in the near infrared: achievements and new challenges 
    Chandrasekhar, T (Astronomical Society of India, 2005-06)
    A brief review of the lunar occultation program in the near infrared for high angular resolution study of bright IR sources carried out at PRL in the last decade is presented. The development of the two channel Fast IR ...
  • 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 ...
  • 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 ...

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