View Full Version : Nearby Galaxy Holds First Ultraluminous X-Ray Source that is a Pulsar

2014-Oct-10, 06:20 PM
A research team led by Caltech astronomers of Pasadena California have discovered an*ultraluminous X-ray (ULX) source that is pulsating. Their analysis concluded that the source in a nearby galaxy – M82 – is from a rotating neutron star, a pulsar. This is the first ULX source attributed to a pulsar. (...)Read the rest of Nearby […]

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Ross 54
2014-Oct-11, 05:38 PM
Besides the puzzle of how a relatively low mass object like an accretion pulsar can pull in as much matter as a much more massive black hole, there is another riddle. How can this newly discovered object be rotating at the comparatively leisurely rate, for a pulsar, of 1.37 seconds, if its accreting an unusually large amount of matter from its companion star? Shouldn't the in-falling matter impart a quite high rate of spin to the object?