Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.302..688b&link_type=abstract
Nature (ISSN 0028-0836), vol. 302, April 21, 1983, p. 688-690.
Astronomy and Astrophysics
Astronomy
21
Astronomical Maps, Pulsars, Radio Astronomy, X Ray Astronomy, Heao 2, High Resolution, Pulsar Magnetospheres, Stellar Evolution, Very Large Array (Vla)
Scientific paper
The 1.5 millisecond pulsar (PSR1937+214) discovered in the radio source 4C21.53 is more closely located and characterized. High-resolution radio maps of the region were obtained with the Very Large Array, and no evidence was found in the morphology of 4C21.53 to connect it with the pulsar, which was determined to be at a different distance. A high-resolution imager X-ray map of the region was made using the Einstein Observatory, and no detectable X-ray emission could be associated with either 4C21.53 or the pulsar. From the stringent upper limit on X-ray emissions, substantial differences in the magnetospheric structure of the pulsar compared to that of other radio pulsars are inferred.
Becker Robert H.
Helfand David J.
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