ROSAT Guest Observer Facility

PSR J0437-4715

PSR J0437-4715

Image courtesy of W.Becker, MPE. (

The 5.75 ms pulsar PSR J0437-4715 is the nearest and brightest millisecond pulsar known. It is part of a binary system with an orbital period of 5.5 days and has a low-mass white dwarf companion. X-ray emission from the pulsar was first detected in the ROSAT All-Sky Survey data by Becker (1993). The picture shown is based on survey data, and documents the discovery. The X-rays detected from the pulsar are about 30% pulsed. The soft X-ray spectrum is a power-law, indicating a magnetospheric origin of the detected emission. The brightest source in the picture, north-east of the pulsar, is an active galaxy. For further information see Becker & Trümper (1993, Nature, 365, 528) or contact W. Becker for update information on the X-ray emission properties of millisecond pulsars.
Get the high resolution (300 dpi) TIFF format version.

Curator: Michael Arida (ADNET);
HEASARC Guest Observer Facility

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This file was last modified on Tuesday, 25-Aug-2020 18:01:41 EDT

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