Sun-like star flips its magnetic field


	Sun-like star flips its magnetic field

tabsey

2-14-2008 7:53 AM

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tags:

astronomy

tabsey says:

Maybe it didn't get a Valentines card.

1 Comment |

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2-16-2008 1:50 PM

dewitte

This is cool, but who names a star Bootis?

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/6fd85891-9040-49f2-998b-a829de92058d/0EE1DDCA-E2E7-4FAE-AACB-93AA36452618/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.astronomy.com/asy/default.aspx?c=a&id=6618" href="http://www.astronomy.com/asy/default.aspx?c=a&id=6618" style="font-size: 11px;">www.astronomy.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.astronomy.com/asy/default.aspx?c=a&id=6618"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/www.astronomy.com/img/80165B6B-8E99-4D8A-A823-4535DFB931B3" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.astronomy.com/asy/default.aspx?c=a&id=6618"><SPAN class="caption">The magnetic field of the Sun-like star tau Bootis has flipped its north and south poles. The shortened cycle of this event may be due to interactions with its nearby massive planet. <EM>Karen Teramura/UH IfA</EM> [<A href="javascript:alert('This link contains javascript. Please visit the clip source to follow this link.');" target="_self">View Larger Image</A>]</SPAN></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.astronomy.com/asy/default.aspx?c=a&id=6618"><DIV>An international group of astronomers that includes the University of Hawaii's Evgenya Shkolnik reported today that they have discovered that the Sun-like star tau Bootis flipped its magnetic field from north to south sometime during the last year.</DIV></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.astronomy.com/asy/default.aspx?c=a&id=6618"><DIV>It has been known for many years that the Sun's magnetic field changes its direction every 11 years, but this is this is the first time that such a change has been observed in another star. The team of astronomers, who made use of Canada-France-Hawaii Telescope atop Mauna Kea, are now closely monitoring tau Bootis to see how long it will be before the magnetic field reverses again.</DIV></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/0EE1DDCA-E2E7-4FAE-AACB-93AA36452618/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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