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Browsing by Subject "Pulsar"

Browsing by Subject "Pulsar"

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  • Energy Sensitive Search for Pulsed Photons from Crab Pulsar using the TACTIC Imaging Element 
    Rannot, R. C; Yadav, K. K; Dhar, V. K; Tickoo, A. K; Bhatt, N; 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; Bhat, C. L (Astronomical Society of India, 2003)
    The Imaging Element (IE) of the 4-element TACTIC array of atmospheric Cherenkov telescopes is in operation at Mt. Abu Rajasthan, in Western India. We have successfully detected a steady signal from the Crab Nebula at a ...
  • IIA Newsletter, Vol.3, No.3, July 1988 
    Prabhu, T. P; Pati, A. K (Indian Institute of Astrophysics, 1988-07)
  • A Model for Simulating Realistic Profiles of Pulsars 
    Thomas, R. M. C; Gupta, Y; Gangadhara, R. T (American Institute of Physics, 2011-08)
    We devise an accurate method to compute the emission profile corresponding to a given set of pulsar emission parameters, for eg. inclination angle alpha, impact angle beta, frequency of emission omega, Lorentz factor gamma, ...
  • New pulsar observations using the Gauribidanur Radio Telescope 
    Asgekar, A; Deshpande, A. A (Astronomical Society of India, 1999)
    Pulsar observations with improved sensitivity have been initiated at 34.5 MHz and a 1-MHz bandwidth using the Gauribidanur Radio Telescope. We describe our new procedure where the raw (2-bit) signal voltages are recorded ...
  • Observations of PSR 0950 + 08 at 103 MHz 
    Deshpande, M. R; Vats, Hari Om; Janardhan, P; Bobra, A. D (Astronomical Society of India, 1993)
    n this article we report the possible cause of an enormously large enhancement (burst) in the ratio flux of PSR 0950 + 08. The burst was observed by two radio telescopes at Rajkot and Thaltej separated by 20 km. Simple ...
  • Origin of the proper motion and spin of pulsars 
    Cowsik, R (The European Southern Observatory, 1998-12)
    It is suggested that the proper motion and the spin of pulsars at birth are causally connected. Accordingly, the observed mean values of these parameters can be attributed to the recoil momentum and torque impulse imparted ...
  • Preliminary results on the flux of TeV g-rays from crab system obtained with the PACT at Pachmarhi 
    Sripathi Acharya, B; Bhat, P. N; Chitnis, V. R; Majumdar, P; Rahman, M. A; Singh, B. B; Vishwanath, P. R (International Union of Pure and Applied Physics, 2003-07)
    We have observed the Crab system (Nebula and Pulsar) and the corresponding background regions during many clear nights in the years 1999-2002 ˇ using the atmospheric Cerenkov array at Pachmarhi, PACT. Preliminary results ...
  • Pulsar Radio Emission Altitude from Curvature Radiation 
    Gangadhara, R. T (The University of Chicago Press, 2004-07-01)
    We assume that relativistic sources moving along dipolar magnetic field lines emit curvature radiation. The beamed emission occurs in the direction of tangents to the field lines, and to receive it, the sight line must ...
  • Pulsar radio emission geometry 
    Gangadhara, R. T (Springer Netherlands, 2008)
    Pulsar radio emission is belived to come from relativistic plasma accelerated along the dipolar magnetic field lines in pulsar magnetosphere. The beamed emission by relativistic sources occur in the direction of tangents ...
  • Radio Emission by Particles Accelerated in Pulsar Magnetosphere 
    Thomas, R. M. C; Gangadhara, R. T (Astronomical Society of India, 2003)
    We present a relativistic model of pulsar radio emission by plasma accelerated along the rotating magnetic field lines projected on to a 2D plane perpendicular to the rotation axis. We have derived the expression for the ...
  • Terrestrial effects of PSR 0950 + 08 (Paper 2) 
    Vats, Hari Om; Chandra, H; Deshpande, M. R; Janardhan, P; Vyas, G. D (Astronomical Society of India, 1993)
    This article presents indirect evidence that on July 29, 1992 PSR 0950 + 08 emitted a burst of X-ray emissions along with the enhanced radio pulses. This indirect evidence is seen in the form of excess absorption of HF ...

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