Thumbnail
Access Restriction
Open

Author Gwinn, C. R. ♦ Hirano, C. ♦ Boldyrev, S.
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Psr J0437 ♦ Interstellar Scintillation ♦ Nearby Pulsar ♦ U Vlb Array ♦ Dynamic Spectrum ♦ Scintillation Bandwidth ♦ Wider-bandwidth Scale ♦ Turbulence Pulsar ♦ Scintillation Amplitude ♦ Key Word ♦ Interstellar Plasma ♦ Psr B0950 ♦ Pulsar Psr J0437 ♦ Phase Data
Abstract Aims.We sought to determine the scale of scintillation in the interstellar plasma of PSR J0437−4715. Methods.We used the US VLB Array to obtain scintillation amplitude and phase data, from dynamic spectra at 327 MHz. Results. We observe two scales of scintillation of pulsar PSR J0437−4715, differing by more than an order of magnitude in scintillation bandwidth. The wider-bandwidth scale of scintillation that we observe indicates less scattering for this pulsar than for other nearby pulsars, other than PSR B0950+08. The narrower scale agrees approximately with that observed for other nearby pulsars. Key words. turbulence – pulsars: individual (PSR J0437−4715) 1.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Publisher Date 2005-01-01