Testing gravity with pulsar scintillation measurements
نویسندگان
چکیده
منابع مشابه
Testing gravity with pulsar scintillation measurements
Huan Yang, Atsushi Nishizawa, and Ue-Li Pen Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L2Y5, Canada Institute for Quantum Computing, University of Waterloo, Waterloo, Ontario N2L3G1, Canada Department of Physics and Astronomy, The University of Mississippi, University, Mississippi 38677, USA Theoretical Astrophysics 350-17, California Institute of Technology, Pasadena, Cal...
متن کاملPulsar Scintillation and the Local Bubble
We present here the results from an extensive scintillation study of twenty pulsars in the dispersion measure (DM) range 3− 35 pc cm−3 carried out using the Ooty Radio Telescope at 327 MHz, to investigate the distribution of ionized material in the local interstellar medium. Observations were made during the period January 1993 to August 1995, in which the dynamic scintillation spectra of these...
متن کاملStudy of the LISM using Pulsar Scintillation
We present here the results from an extensive scintillation study of twenty pulsars in the dispersion measure (DM) range 3 − 35 pc cm carried out using the Ooty Radio Telescope, to investigate the distribution of ionized material in the local interstellar medium (LISM). Our analysis reveals several anomalies in the scattering strength, which suggest that the distribution of scattering material ...
متن کاملPulsar Radiation and Quantum Gravity
Quantum gravity may lead to an energy dependence in the speed of light. The high energy radiation from gamma-ray pulsars can be used to place limits on such effects. We find that emission from the Crab pulsar at energies above 2 GeV trails that at 70–100 MeV by no more than 0.35 ms (95% confidence) and place a lower bound on the energy scale of quantum gravitational effects on the speed of ligh...
متن کاملScintillation in scalar-tensor theories of gravity
We study the scintillation produced by time-varying gravitational fields within scalar-tensor theories of gravity. The problem is treated in the geometrical optics approximation for a very distant light source emitting quasi plane monochromatic electromagnetic waves. We obtain a general formula giving the time dependence of the photon flux received by a freely falling observer. In the weak-fiel...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2017
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.95.084049