Research Papers: Recent submissions

  • Front-end digital signal processing scheme for 206.5 MHz atmospheric radar application 
    Kumar, A.; Bhattacharjee, S.; Naja, M.; Kumar, Phani (2011)
    This paper describes the digitization and front-end digital signal processing scheme for the atmospheric Radar operating at 206.5 MHz. The atmospheric Radar operating at this frequency will have the capability to probe ...
  • Homologous flares and magnetic field topology in active region NOAA 10501 on 20 November 2003 
    Chandra, R.; Schmieder, B.; Mandrini, C. H.; Demoulin, P.; Pariat, E.; Torok, T.; Uddin, W. (2011)
    We present and interpret observations of two morphologically homologous flares that occurred in active region (AR) NOAA 10501 on 20 November 2003. Both flares displayed four homologous Hα ribbons and were both accompanied ...
  • A spectroscopic study of the hybrid pulsator γ Pegasi 
    Pandey, C. P.; Morel, T.; Briquet, M.; Jaykumar, K.; Bisht, S.; Sanwal, B. B. (2011)
    The recent detection of both pressure and high-order gravity modes in the classical B-type pulsator γ Pegasi offers promising prospects for probing its internal structure through seismic studies. To aid further modelling ...
  • Astronomical polarimetry: new opportunities 
    Medhi, B. J. (2010)
    The information about any astronomical object is derived only from their radiation. The polarized state of radiation yields much more astrophysical information than the intensity of radiation alone.Astronomical polarimetry ...
  • Proposed visible emission line space solar coronagraph 
    Singh, J.,...et.al. (Including Uddin, W.) (2011)
    The outer atmosphere of the sun – called the corona – has been observed during total solar eclipse for short periods (typically < 6 min), from as early as the eighteenth century. In the recent past, space-based instruments ...
  • Study of upper atmospheric emissions using Mesosphere Lower Thermosphere Photometry (MLTP) designed at ARIES 
    Bangia, T.; Bhattacharjee, S.; Guharay, A.; Taori, A.; Uddin, W. (2010)
    Mesosphere Lower Thermosphere Photometry (MLTP) has been designed at ARIES for studying mesosphere lower thermosphere coupling processes. MLTP utilizes f/2 optics with 4° circular field of view. It has seven narrow bandwidth ...
  • Ionospheric response to the space weather event of 18 November 2003 - an investigation 
    Pankaj, P.; Uddin, W.; Taori, A.; Chandra, R.; Bisht, S. (2010)
    The present study explores the ionospheric effects of the well cited solar flare events (M3.2, M3.9/2N) of 18 November 2003 associated with CMEs. The Hα observations of these flares (taken with 15 cm Solar Tower Telescope ...
  • SN 2008gz – most likely a normal Type IIP event 
    Roy, R., et. al. (including 12 authors) (2011)
    We present BVRI photometric and low-resolution spectroscopic investigation of the Type II core-collapse supernova (SN) 2008gz, which occurred in a star-forming arm and within a halflight radius (solar metallicity region) ...
  • Searching for needles in haystacks—using the Fermi/GBM to Find GRB γ-rays with the Fermi/LAT detector 
    Akerlof, C. W.; Zheng, W.; Pandey, S. B.; McKay, T. A. (2010)
    From the launch of the Fermi Gamma-ray Space Telescope to 2010 July 9, the Gamma-ray Burst Monitor (GBM) has detected 497 probable GRB events. Twenty-two of these satisfy the simultaneous requirements of an estimated burst ...
  • Evidence of solar flare triggering due to loop-loop interaction caused by footpoint shear motion 
    Kumar, P.; Srivastava, A. K.; Somov, B. V.; Manoharan, P. K.; Erdelyi, R.; Uddin, W. (2010)
    We analyze multi-wavelength data of an M7.9/1N class solar flare which occurred on 2006 April 27 in AR NOAA 10875. GOES soft X-ray images provide the most likely signature of two interacting loops and their reconnection, ...
  • Optical photometric study of the open clusters Koposov 12, Koposov 53 and Koposov 77 
    Yadav, R. K. S.; Glushkhova, E. V.; Sariya, D. P.; Porokhova, A. V.; Kumar, B.; Sagar, R. (MNRAS, 2011)
    We present UBVI CCD photometry in the region of the open clusters Koposov 12, Koposov 53 and Koposov 77. The optical CCD data for these clusters are obtained for the first time. The radii are found to be 4.6, 4.2 and 2.4 ...
  • How can a negative magnetic helicity active region generate a positive helicity magnetic cloud? 
    Chandra, R.; Pariat, E.; Schmieder, B.; Mandrini, C. H.; Uddin, W. (2010)
    The geoeffective magnetic cloud (MC) of 20 November 2003 was associated with the 18 November 2003 solar active events in previous studies. In some of these, it was estimated that the magnetic helicity carried by the MC ...
  • Crossing filaments 
    Fillippov, B.; Srivastava, A. K. (2011)
    Solar filaments show the position of large-scale polarity-inversion lines and are used for the reconstruction of large-scale solar magnetic field structure on the basis of Hα synoptic charts for the periods that ...
  • Development of Mie LIDAR system and initial cloud observations over Central Himalayan region 
    Bangia, T.; Kumar, A.; Sagar, R.; Agarwal, P. K.; Singh, K. (Scientific Research and Essays, 2011-02-18)
    Aryabhatta Research Institute of Observational Sciences (ARIES) at Manora Peak (29° 22’ N, 79° 27’ E), Nainital is located in the Central Himalayan region at an altitude of ~ 1950 m. This free tropospheric site away from ...
  • Photoelectric study of the eclipsing system CD Eridani 
    Kandpal, C. D.; Srivastava, J. B. (1980)
    Limiting photometric solutions for the system CD Eri in B and V filters have been obtained. The secondary minimum was found to be absent.
  • On the period of delta ceti 
    Mohan, V. (1979)
    A period analysis of δ Ceti has been carried out. It has been found that the period of δ Ceti has undergone a sudden decrease somewhere after 1976. The average period between 1976 and 1978 has been found to be 0ᵈ.1611335
  • Extended ring system of Uranus 
    Bhattacharyya, J. C.; Bappu, M. K. V.; Mohin, S.; Mahra, H. S.; Gupta, S. K. (1979)
    Two photoelectric records of the occultation event on 10 March, 1977, obtained by two 102-cm-aperture telescopes, spaced 1500 km apart, are critically analysed and indications of a complex structure of distribution of ...
  • On the infrared opacity of sunspots 
    Joshi, G. C.; Punetha, L. M.; Pande, M. C. (1979)
    In the umbral atmosphere the depth dependence of the opacity due to the vibration rotation bands of various abundant molecules in the wavelength region 1µm to 10µm has been calculated. In the higher layers of the umbral ...
  • Mass transfer in TV Cassiopeiae 
    Chaubey, U. S. (1979)
    The period variations of TV Cassiopeiae between 1901 and 1977 are discussed in the light of the period change model proposed by Biermann and Hall. During each period decrease 4.0 x 10¯⁶M☉ of mass is transferred from the ...
  • A study of the young open cluster NGC 6611 
    Sagar, R.; Joshi, U. C. (1979)
    Photoelectric magnitudes and colours in the UBV system have been determined for 50 stars in NGC 6611. The reddening value varies across the cluster from E(B-V) - 0ᵐ.58 to E(B-V) = 1ᵐ.21. The distance modulus to the cluster ...

Search ARIES-IDR


Advanced Search

Browse

My Account

Context