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Pulsar that switches between Radio & X-Rays has scientists baffled
On 1/29/13 4:06 PM, G=EMC^2 wrote:
They come out of poles for long photons and equator for short photons. They have a time laps due to rotation. It fits. TreBert No, that is not observed. |
#12
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Pulsar that switches between Radio & X-Rays has scientists baffled
On Jan 26, 10:04*am, Yousuf Khan wrote:
http://www.astronomy.com/~/link.aspx...4a7c-b34b-6f6c.... "Scientists have found that this object, whose radio emission is known to switch on and off periodically, exhibits the same behavior, but in reverse, when observed at X-ray wavelengths. New observations of a highly variable pulsar using the European Space Agency s (ESA) XMM-Newton are perplexing astronomers. Monitoring this pulsar simultaneously in X-rays and radio waves, astronomers have revealed that this source, whose radio emission is known to switch on and off periodically, exhibits the same behavior, but in reverse, when observed at X-ray wavelengths. It is the first time that a switching X-ray emission has been detected from a pulsar, and the properties of this emission are unexpectedly puzzling. As no current model is able to explain this switching behavior, which occurs within only a few seconds, these observations have reopened the debate about the physical mechanisms powering the emission from pulsars." It's probably a binary or trinary consideration, as are most variables out there. |
#13
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Pulsar that switches between Radio & X-Rays has scientists baffled
On 29/01/2013 2:54 PM, dlzc wrote:
Dear Yousuf Khan: On Tuesday, January 29, 2013 12:02:25 PM UTC-7, Yousuf Khan wrote: On 29/01/2013 9:54 AM, Luigi Caselli wrote: ... Finally we've found intelligent life in our Universe! Please call SETI to understand what they're saying... :-) We probably need the aliens to explain this to us. I guess that the X-rays are particles falling in, and the radio waves come from the stuff blown outwards (temporarily) by the X-ray bombardment. But I think the radio portion lasts longer than the x-ray portion. Plus why would stuff be falling in regularly around it, unless it's got a companion feeding it material. There's no mention of a companion. Yousuf Khan |
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