Improved timing of the millisecond pulsar PSR 1937+21 using real-time coherent dedispersion

Journal Article · Wed Apr 01 00:00:00 EST 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/165120· OSTI ID:6320282

Hankins, T H; Stinebring, D R; Rawley, L A

Profiles of the millisecond pulsar PSR 1937+21 have been obtained with 6-micron resolution using a real-time hardware dispersion removal device. This dedisperser has a potential resolution of better than 0.5 microsec and is immune to time-of-arrival jitter caused by scintillation-induced spectral gradients across the receiver passband. It significantly reduces the time-of-arrival residuals when compared with the timing technique currently in use. This increased timing accuracy, when utilized in a long-term timing program of millisec pulsars, will improve the solar system ephemeris and will substantially improve the detection limit of a gravitational wave background. 27 references.

• Research Organization: Dartmouth College, Hanover, NH; Princeton Univ., NJ
• OSTI ID: 6320282
• Journal Information: Astrophys. J.; (United States), Vol. 315
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
PULSARS
TIME MEASUREMENT
GRAVITATIONAL WAVES
COSMIC RADIO SOURCES
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources