Interstellar Scintillation of Pulsar B0809+74

Pulsar Scintillation Studies and Structure of the Local Interstellar Medium

Results from new observations of pulsars using the Ooty Radio Telescope (ORT) are used for investigating the structure of the Local Interstellar Medium (LISM). The observations show anomalous scintillation effects towards several nearby pulsars, and these are modeled in terms of large-scale spatial inhomogeneities in the distribution of plasma density fluctuations in the LISM. A 3-component mod...

Probing the Interstellar Medium on AU Size Scales Using Pulsar Scintillation

Interstellar Scintillation of PSR J 0437 − 4715

Aims. We studied the turbulence spectrum of the local interstellar plasma in the direction of PSR J0437−4715, on the basis of our observations and those reported earlier by others. Methods. We combine these data to form a structure function for the variations of phase along the line of sight to the pulsar. For observations that did not report them, we infer modulation indices from a theoretical...

Study 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 ...

Pulsar 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...