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Browsing by Author "Kasturirangan, K"

Browsing by Author "Kasturirangan, K"

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  • Periodic modulations in the optical light curves of EX Hydrae 
    Seetha, S; Sharma, D. P; Padmini, V. N; Marar, T. M. K; Kasturirangan, K (Kluwer Academic Publishers, 1987-02)
    The authors present here new results on the periodic modulations in the optical light curves of EX Hydrae observed during 1982 - 84. The period analysis has been done using synchronous summation and discrete Fourier transform ...
  • Photometric observations of cataclysmic variables from UPSO, Naini Tal 
    Ashoka, B. N; Seetha, S; Marar, T. M. K; Raj, E; Kasturirangan, K; Mahra, H. S (Astronomical Society of India, 1998)
  • Photometric observations of the AM CVn star EC 15330-1403 
    Seetha, S; Ashoka, B. N; Raj, E; Kasturirangan, K (Astronomical Society of India, 2000)
  • Photometric Observations of the X-Ray Dwarf Nova HL Canis Majoris 
    Seetha, S; Marar, T. M. K; Sharma, D. P; Kasturirangan, K; Rao, U. R; Bhattacharyya, J. C (INSDOC, 1983-08)
    High speed optical photometric observations of the X-ray dwarf nova HL Canis Majoris (1E 0643-1648), discovered with the Einstein Observatory, are presented. Results of long term monitoring and attempts to detect photometric ...
  • Photometry of intermediate polars AO PSC and V 1223 SGR 
    Padmini, V. N; Marar, T. M. K; Seetha, S; Padmanabhan, P; Kasturirangan, K; Rao, U. R; Bhattacharyya, J. C; Kuppuswamy, K; Rozario, M. J (Springer, 1985-12)
    We present optical photometric observations of the cataclysmic variables AO Psc and V 1223 Sgr, both of which are believed to contain slowly-rotating white-dwarf pulsars. These objectes belong to the new class of intermediate ...
  • Search for optical bursts from the gamma ray burst source GBS 0526-66 
    Seetha, S; Sreenivasaiah, K. V; Marar, T. M. K; Kasturirangan, K; Rao, U. R; Bhattacharyya, J. C (NASA/STI, 1985-08)
    Attempts were made to detect optical bursts from the gamma-ray burst source GBS 0526-66 during Dec. 31, 1984 to Jan. 2, 1985 and Feb. 23 to Feb. 24, 1985, using the one meter reflector of the Kavalur Observatory. Jan. 1, ...
  • Study of two pulsars with the Indian X-ray Astronomy Experiment 
    Mukerjee, K; Agrawal, P. C; Paul, B; Rao, A. R; Yadav, J. S; Seetha, S; Kasturirangan, K (Astronomical Society of India, 2000)
    The X-ray pulsars Cep X-4 and 4U 1907+09 were observed with the Indian X-ray Astronomy Experiment (IXAE). Observations of Cep-X4 were made during the declining phase of its latest 30 days outburst in 1997, July-August. The ...
  • Survey for roAp stars in the northern sky from Naini Tal 
    Ashoka, B. N; Seetha, S; Raj, E; Chaubey, U. S; Gupta, S. K; Joshi, S; Martinez, P; Kurtz, D. W; Sagar, R; Kasturirangan, K (Astronomical Society of India, 2000)
    Of the 31 known rapidly oscillating Ap (roAp) stars, 28 are in the southern sky and majority of them were discovered at SAAO indicating that a systematic survey also is needed in the northern sky. Therefore, a project has ...
  • X-ray bursts from GRS 1915+105 observed with IXAE 
    Yadav, J. S; Agrawal, P. C; Paul, B; Rao, A. R; Vahia, M. N; Seetha, S; Kasturirangan, K (Astronomical Society of India, 1999)
    The light curves of the galactic superluminal X-ray transient source GRS1915+105 observed with the pointed proportional counters (PPC) of Indian X-ray Astronomy Experiment (IXAE)on board IRS-P3 have revealed the presence ...
  • The X-ray observation of newly discovered transient XTE J1748-288 by the Indian X-ray Astronomy Experiment 
    Naik, S; Agrawal, P. C; Paul, B; Rao, A. R; Seetha, S; Kasturirangan, K (Astronomical Society of India, 2000)
    The observations of X-ray transient XTE J1748-288 were made in the energy band 2 - 18 keV with the Indian X-ray astronomy experiment (IXAE) during 1998, June 14-25 with total useful exposure of 27,100 second for 1 sec ...

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