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	<title>Comments on: Exoplanet news Part 2: Exosaturn!</title>
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	<link>http://blogs.discovermagazine.com/badastronomy/2012/01/12/exoplanet-news-part-2-exosaturn/</link>
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	<lastBuildDate>Wed, 21 Nov 2012 15:12:45 +0000</lastBuildDate>
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		<title>By: Drunk Vegan</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2012/01/12/exoplanet-news-part-2-exosaturn/#comment-319646</link>
		<dc:creator>Drunk Vegan</dc:creator>
		<pubDate>Sat, 14 Jan 2012 21:45:49 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=43001#comment-319646</guid>
		<description>That&#039;s not a planet, it&#039;s a ringworld built around the star. The gaps are the spots where the various sections are loosely linked together to lessen the tidal stress. :)</description>
		<content:encoded><![CDATA[<p>That&#8217;s not a planet, it&#8217;s a ringworld built around the star. The gaps are the spots where the various sections are loosely linked together to lessen the tidal stress. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
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		<title>By: Anchor</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2012/01/12/exoplanet-news-part-2-exosaturn/#comment-319645</link>
		<dc:creator>Anchor</dc:creator>
		<pubDate>Sat, 14 Jan 2012 21:44:07 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=43001#comment-319645</guid>
		<description>@ Kuba: &quot;...the way in which it got picked up by media is just purely outrageous.&quot;

Yes, it is. At least as outrageous as implying that researchers are responsible for how media may portray their work. But no hard feelings there, to be sure.</description>
		<content:encoded><![CDATA[<p>@ Kuba: &#8220;&#8230;the way in which it got picked up by media is just purely outrageous.&#8221;</p>
<p>Yes, it is. At least as outrageous as implying that researchers are responsible for how media may portray their work. But no hard feelings there, to be sure.</p>
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		<title>By: DigitalAxis</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2012/01/12/exoplanet-news-part-2-exosaturn/#comment-319644</link>
		<dc:creator>DigitalAxis</dc:creator>
		<pubDate>Fri, 13 Jan 2012 17:44:00 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=43001#comment-319644</guid>
		<description>@1: Mozetti

&lt;i&gt;Phil, considering the age of the star and the size of the planet and rings, is it possible that the rings are in the process of coalescing into moons of the planet?&lt;/i&gt;

Actually, the presence of rings suggests there&#039;s ALREADY moons.  If there&#039;s a gap in a disk, something has to be clearing that gap.  For instance, with Saturn&#039;s rings, the enormous Cassini Division is cleared by Saturn&#039;s moon Mimas (which lies outside the rings but exerts gravitational influence on them).

@30 VinceRN:

MANY professional astronomers read Bad Astronomy.</description>
		<content:encoded><![CDATA[<p>@1: Mozetti</p>
<p><i>Phil, considering the age of the star and the size of the planet and rings, is it possible that the rings are in the process of coalescing into moons of the planet?</i></p>
<p>Actually, the presence of rings suggests there&#8217;s ALREADY moons.  If there&#8217;s a gap in a disk, something has to be clearing that gap.  For instance, with Saturn&#8217;s rings, the enormous Cassini Division is cleared by Saturn&#8217;s moon Mimas (which lies outside the rings but exerts gravitational influence on them).</p>
<p>@30 VinceRN:</p>
<p>MANY professional astronomers read Bad Astronomy.</p>
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		<title>By: VinceRN</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2012/01/12/exoplanet-news-part-2-exosaturn/#comment-319643</link>
		<dc:creator>VinceRN</dc:creator>
		<pubDate>Fri, 13 Jan 2012 16:43:12 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=43001#comment-319643</guid>
		<description>Wow, author happens by and chimes in.  That is awesome.  Thanks Eric M, for your work and for stopping by.</description>
		<content:encoded><![CDATA[<p>Wow, author happens by and chimes in.  That is awesome.  Thanks Eric M, for your work and for stopping by.</p>
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		<title>By: Kuba the Pirate Navigator</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2012/01/12/exoplanet-news-part-2-exosaturn/#comment-319642</link>
		<dc:creator>Kuba the Pirate Navigator</dc:creator>
		<pubDate>Fri, 13 Jan 2012 16:04:06 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=43001#comment-319642</guid>
		<description>Eric - no hard feelings there. I did have a look at your paper and read through the section concerning other plausible explanations. What bothers me is that SuperWASP light-curves are plagued with all sorts of systematics. Myself, I was very close to announcing &quot;discovery&quot; of a WASP planet once, which eventually was found to be just a systematic effect related to the the way in which SWASP reduction pipeline adds timestamps to data collected by its telescopes. I see that you collaborated with Andrew Collier Cameron on this paper. Well, Andrew, being involved in SWASP project as much as he is, knows all too well just how misleading SWASP data can sometimes be.

In the whole business of exoplanet hunting, confirmation of a discovery is the key. I would be really interested to see outcomes of the RV analysis when sufficient spectroscopic data is eventually collected. For now it is a very interesting idea that awaits confirmation.

Oh - and sorry for calling it a bull. That was far too strong. I am just immensely annoyed by how media respond to such announcements. I work on one of telescopes following up SWASP candidates and my primary job is concerned with rejecting planetary candidates that are put forward basing on raw SWASP data (exactly the sort that you were dealing with). In 95% of all situations followup &quot;kills&quot; these &quot;planets&quot; before anyone even starts thinking about publishing any information about them. Coming from that sort of background, your announcement sounds a little preliminary, and the way in which it got picked up by media is just purely outrageous.</description>
		<content:encoded><![CDATA[<p>Eric &#8211; no hard feelings there. I did have a look at your paper and read through the section concerning other plausible explanations. What bothers me is that SuperWASP light-curves are plagued with all sorts of systematics. Myself, I was very close to announcing &#8220;discovery&#8221; of a WASP planet once, which eventually was found to be just a systematic effect related to the the way in which SWASP reduction pipeline adds timestamps to data collected by its telescopes. I see that you collaborated with Andrew Collier Cameron on this paper. Well, Andrew, being involved in SWASP project as much as he is, knows all too well just how misleading SWASP data can sometimes be.</p>
<p>In the whole business of exoplanet hunting, confirmation of a discovery is the key. I would be really interested to see outcomes of the RV analysis when sufficient spectroscopic data is eventually collected. For now it is a very interesting idea that awaits confirmation.</p>
<p>Oh &#8211; and sorry for calling it a bull. That was far too strong. I am just immensely annoyed by how media respond to such announcements. I work on one of telescopes following up SWASP candidates and my primary job is concerned with rejecting planetary candidates that are put forward basing on raw SWASP data (exactly the sort that you were dealing with). In 95% of all situations followup &#8220;kills&#8221; these &#8220;planets&#8221; before anyone even starts thinking about publishing any information about them. Coming from that sort of background, your announcement sounds a little preliminary, and the way in which it got picked up by media is just purely outrageous.</p>
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		<title>By: Messier Tidy Upper</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2012/01/12/exoplanet-news-part-2-exosaturn/#comment-319641</link>
		<dc:creator>Messier Tidy Upper</dc:creator>
		<pubDate>Fri, 13 Jan 2012 06:55:33 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=43001#comment-319641</guid>
		<description>Reminds me somewhat of the mystery companion to Epslion Aurigae also known as Almaaz - click on my name for link to Kaler&#039;s &lt;i&gt;Stars&lt;/i&gt; page on that one - although obviously on a much smaller scale.

Again we have a strange object transiting across its star and creating a wonderfully intriguing puzzle with some exotic proposed solutions. Perhaps we&#039;re jumping too quickly into the Saturn-like rings conclusion but still .. wow. :-)

@23.   Eric M - January 12th, 2012 at 7:33 pm :

&lt;b&gt;Congratulations!&lt;/b&gt; Splendid discovery and work there - I can&#039;t wait to hear &amp; read more about this. Please relay my congrats and thanks to the rest of your team too. :-)

</description>
		<content:encoded><![CDATA[<p>Reminds me somewhat of the mystery companion to Epslion Aurigae also known as Almaaz &#8211; click on my name for link to Kaler&#8217;s <i>Stars</i> page on that one &#8211; although obviously on a much smaller scale.</p>
<p>Again we have a strange object transiting across its star and creating a wonderfully intriguing puzzle with some exotic proposed solutions. Perhaps we&#8217;re jumping too quickly into the Saturn-like rings conclusion but still .. wow. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' /> </p>
<p>@23.   Eric M &#8211; January 12th, 2012 at 7:33 pm :</p>
<p><b>Congratulations!</b> Splendid discovery and work there &#8211; I can&#8217;t wait to hear &amp; read more about this. Please relay my congrats and thanks to the rest of your team too. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' /> </p>
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		<title>By: Messier Tidy Upper</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2012/01/12/exoplanet-news-part-2-exosaturn/#comment-319640</link>
		<dc:creator>Messier Tidy Upper</dc:creator>
		<pubDate>Fri, 13 Jan 2012 06:35:15 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=43001#comment-319640</guid>
		<description>WHOAH! :-o

That is just superluminous  news. To be able to discover planetary &lt;b&gt;rings&lt;/b&gt; -  far larger than Saturn&#039;s to be sure but rings nonetheless - around an extrasolar planet and a relatively distant one at that.

That is.. just .. Wow. Marvellously WOW. :-D

I am offically thunder-struck. :-)

 </description>
		<content:encoded><![CDATA[<p>WHOAH! <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_surprised.gif' alt=':-o' class='wp-smiley' /> </p>
<p>That is just superluminous  news. To be able to discover planetary <b>rings</b> &#8211;  far larger than Saturn&#8217;s to be sure but rings nonetheless &#8211; around an extrasolar planet and a relatively distant one at that.</p>
<p>That is.. just .. Wow. Marvellously WOW. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_biggrin.gif' alt=':-D' class='wp-smiley' /> </p>
<p>I am offically thunder-struck. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' /> </p>
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		<title>By: VinceRN</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2012/01/12/exoplanet-news-part-2-exosaturn/#comment-319639</link>
		<dc:creator>VinceRN</dc:creator>
		<pubDate>Fri, 13 Jan 2012 05:31:15 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=43001#comment-319639</guid>
		<description>Are there other reasonable explanations besides a ring system?  This is an awesome discovery regardless of the explanation, but calling rings the reason for the longer, deeper dip tickled my skepticism gland a bit.  I certainly hope that is the answer though, it is one of the coolest bits of exoplanet stuff I&#039;ve seen.</description>
		<content:encoded><![CDATA[<p>Are there other reasonable explanations besides a ring system?  This is an awesome discovery regardless of the explanation, but calling rings the reason for the longer, deeper dip tickled my skepticism gland a bit.  I certainly hope that is the answer though, it is one of the coolest bits of exoplanet stuff I&#8217;ve seen.</p>
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		<title>By: [LINK] More than an exo-Saturn &#171; A Bit More Detail</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2012/01/12/exoplanet-news-part-2-exosaturn/#comment-319638</link>
		<dc:creator>[LINK] More than an exo-Saturn &#171; A Bit More Detail</dc:creator>
		<pubDate>Fri, 13 Jan 2012 05:01:51 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=43001#comment-319638</guid>
		<description>[...] Via Bad Astronomy news comes about an another astonishing exoplanet discovery. Calling this an &#8220;exo-Saturn&#8221; is misleading&#8211;the rings are much larger than Saturn&#8217;s, while the planet itself may be so massive that it isn&#8217;t a planet but a brown dwarf instead. What&#8217;s remarkable to me is the fine detail that&#8217;s produced. The planet was discovered with the SuperWASP (Wide Angle Search for Planets) telescopes — a UK project that employs low-magnification but very sensitive cameras which can observe large areas of the sky at the same time. It orbits a young star called 1SWASP J140747.93-394542.6, which is 420 light years away. The star’s youth — 16 million years — indicates that the rings are probably the leftover remnants from when the planet formed. [...] </description>
		<content:encoded><![CDATA[<p>[...] Via Bad Astronomy news comes about an another astonishing exoplanet discovery. Calling this an &#8220;exo-Saturn&#8221; is misleading&#8211;the rings are much larger than Saturn&#8217;s, while the planet itself may be so massive that it isn&#8217;t a planet but a brown dwarf instead. What&#8217;s remarkable to me is the fine detail that&#8217;s produced. The planet was discovered with the SuperWASP (Wide Angle Search for Planets) telescopes — a UK project that employs low-magnification but very sensitive cameras which can observe large areas of the sky at the same time. It orbits a young star called 1SWASP J140747.93-394542.6, which is 420 light years away. The star’s youth — 16 million years — indicates that the rings are probably the leftover remnants from when the planet formed. [...] </p>
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		<title>By: Aidan</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2012/01/12/exoplanet-news-part-2-exosaturn/#comment-319637</link>
		<dc:creator>Aidan</dc:creator>
		<pubDate>Fri, 13 Jan 2012 04:17:28 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=43001#comment-319637</guid>
		<description>Okay, read a few of the comments... I noticed some of you seem to be confused. Some of you are insisting that because at one point the suns coverage was 95%, that the ring covering it must have been 95% of the suns diameter. That would be wrong. Because stars are round, light goes off in many directions, not just forward, as they go off in these directions, the mover further and further away from the suns central regions, [think of a diagonal arrow].

Now, because of this, if a planet is sufficiently distant from it&#039;s star, it will only be graced with a fraction of the stars light. Hence: distance was probably more of a factor than size. Besides that, it most likely is a gas giant, which would mean it&#039;s made from light weight elements, which would mean it&#039;s probably quite distant from it&#039;s star, just like our gas giants.</description>
		<content:encoded><![CDATA[<p>Okay, read a few of the comments&#8230; I noticed some of you seem to be confused. Some of you are insisting that because at one point the suns coverage was 95%, that the ring covering it must have been 95% of the suns diameter. That would be wrong. Because stars are round, light goes off in many directions, not just forward, as they go off in these directions, the mover further and further away from the suns central regions, [think of a diagonal arrow].</p>
<p>Now, because of this, if a planet is sufficiently distant from it&#8217;s star, it will only be graced with a fraction of the stars light. Hence: distance was probably more of a factor than size. Besides that, it most likely is a gas giant, which would mean it&#8217;s made from light weight elements, which would mean it&#8217;s probably quite distant from it&#8217;s star, just like our gas giants.</p>
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