S. Johnston

Publications434
h-index63
Citations13,533
Highly Influential Citations1,361
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THE SECOND FERMI LARGE AREA TELESCOPE CATALOG OF GAMMA-RAY PULSARS
This catalog summarizes 117 high-confidence > 0.1 GeV gamma-ray pulsar detections using three years of data acquired by the Large Area Telescope (LAT) on the Fermi satellite. Half are neutron stars…
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PSR 1259-63 : a binary radio pulsar with a Be star companion
The discovery of the first known radio pulsar with a massive, nondegenerate companion is reported. PSR 1259-63, found during a large-scale high-frequency survey of the southern Galactic plane, has a…
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A radio pulsar with an 8.5-second period that challenges emission models
Radio pulsars are rotating neutron stars that emit beams of radiowaves from regions above their magnetic poles. Popular theories of the emission mechanism require continuous electron–positron pair…
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Radio and optical observations of the PSR B1259–63/SS 2883 Be star binary system
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The host galaxy of a fast radio burst
TLDR
The discovery of a fast radio burst is reported and the identification of a fading radio transient lasting ~6 days after the event, which is used to identify the host galaxy and measure the galaxy’s redshift, which provides a direct measurement of the cosmic density of ionized baryons in the intergalactic medium.
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Transformation of a Star into a Planet in a Millisecond Pulsar Binary
TLDR
This pulsar PSR J1719−1438, a 5.7-millisecond pulsar detected in a recent survey with the Parkes 64-meter radio telescope, is shown to be in a binary system with an orbital period of 2.2 hours.
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SNR G320.4–01.2 and PSR B1509–58: new radio observations of a complex interacting system
We describe radio continuum and spectral-line observations of the source G320.4–01.2 (MSH 15–52) and the coincident young pulsar B1509–58 made with the Australia Telescope Compact Array. Based on a…
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A Population of Gamma-Ray Millisecond Pulsars Seen with the Fermi Large Area Telescope
TLDR
Fermi Large Area Telescope data is searched for pulsations from all known millisecond pulsars outside of stellar clusters, finding gamma-ray pulsations for eight of them, suggesting that they share the same basic emission mechanism with standard gamma-Ray pulsars.
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On the Spin-down of PSR B1509-58
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The magnetar 1E 1547.0-5408: radio spectrum, polarimetry, and timing
We have investigated the radio emission from the anomalous X-ray pulsar 1E 1547.0–5408 (PSR J1550–5418) using the Parkes telescope and the Australia Telescope Compact Array. The flux density of the…
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