<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
		>
<channel>
	<title>Comments on: Type 1a Supernoave: A Non-Standard Candle</title>
	<atom:link href="http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/</link>
	<description>Blogging one sidereal day at a time</description>
	<lastBuildDate>Mon, 15 Mar 2010 20:40:07 -0400</lastBuildDate>
	<generator>http://wordpress.org/?v=2.8.6</generator>
	<sy:updatePeriod>hourly</sy:updatePeriod>
	<sy:updateFrequency>1</sy:updateFrequency>
		<item>
		<title>By: Zephir</title>
		<link>http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/comment-page-1/#comment-22819</link>
		<dc:creator>Zephir</dc:creator>
		<pubDate>Sun, 13 Jan 2008 21:32:55 +0000</pubDate>
		<guid isPermaLink="false">http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/#comment-22819</guid>
		<description>This finding has a certain sense from physical point of view and it can be explained by Aether Wave Theory by following way:

Our universe generation is formed by interior of giant dense star, which is collapsing gradually, thus making itself more dense. We are formed by dense material of such star (so called the Aether) as standing waves, which are moving more and more slowly gradually in such dense environment, so that our Universe expands uniformly in all directions from our perspective. This is considerably easier to imagine, then the classical dotted balloon example, isn&#039;t it?

But this is not all. As we can observe the remote objects, we can see them in the less dense environment, the those ones at the proximity. Because the observable matter is more dense, then the vacuum, it collapses too, but more slowly, being &quot;precollapsed&quot; already. So here&#039;s an apparent difference between vacuum density and matter here and at the places of remote objects. This can be interpreted as a gradual increasing of gravitational constant (and another physical constants) and as a dilatation of matter with respect of vacuum.

Here are observable consequences at the case, we can observe the movement of bodies in gravitational field at the distance. Because the gravity force decreases, we can see remote objects as more interacting, then these closer one. Such effect affects the shape of large galaxies, for example and the MOND theory takes account into it. This theory suggests, the gravitational force decrease with distance by more slowly, then Newtonian theory predicts and this effect keeps the giant galaxies more compact, so all stars inside them are rotating as a single body. 

The decreasing of intensity of standard candle supernovae at the distance is related to such phenomena too. In more dense enevironment, the intesity of supernovae explosions will get more and more subtle, which effectivelly means, the older supernovae appears stronger and closer, then really are.

Surprisingly enough, albeit subtle, the expansion of matter with respect to vacuum is directly observable, too. By latest optical measurements, the iridium prototype of meter expands slightly (http://www.physorg.com/news64.html). It means, all the distances will elongate slightly at the future, which can be interpreted as a dilatation of time, which disappears gradually from our universe.</description>
		<content:encoded><![CDATA[<p>This finding has a certain sense from physical point of view and it can be explained by Aether Wave Theory by following way:</p>
<p>Our universe generation is formed by interior of giant dense star, which is collapsing gradually, thus making itself more dense. We are formed by dense material of such star (so called the Aether) as standing waves, which are moving more and more slowly gradually in such dense environment, so that our Universe expands uniformly in all directions from our perspective. This is considerably easier to imagine, then the classical dotted balloon example, isn&#8217;t it?</p>
<p>But this is not all. As we can observe the remote objects, we can see them in the less dense environment, the those ones at the proximity. Because the observable matter is more dense, then the vacuum, it collapses too, but more slowly, being &#8220;precollapsed&#8221; already. So here&#8217;s an apparent difference between vacuum density and matter here and at the places of remote objects. This can be interpreted as a gradual increasing of gravitational constant (and another physical constants) and as a dilatation of matter with respect of vacuum.</p>
<p>Here are observable consequences at the case, we can observe the movement of bodies in gravitational field at the distance. Because the gravity force decreases, we can see remote objects as more interacting, then these closer one. Such effect affects the shape of large galaxies, for example and the MOND theory takes account into it. This theory suggests, the gravitational force decrease with distance by more slowly, then Newtonian theory predicts and this effect keeps the giant galaxies more compact, so all stars inside them are rotating as a single body. </p>
<p>The decreasing of intensity of standard candle supernovae at the distance is related to such phenomena too. In more dense enevironment, the intesity of supernovae explosions will get more and more subtle, which effectivelly means, the older supernovae appears stronger and closer, then really are.</p>
<p>Surprisingly enough, albeit subtle, the expansion of matter with respect to vacuum is directly observable, too. By latest optical measurements, the iridium prototype of meter expands slightly (<a href="http://www.physorg.com/news64.html)" rel="nofollow">http://www.physorg.com/news64.html)</a>. It means, all the distances will elongate slightly at the future, which can be interpreted as a dilatation of time, which disappears gradually from our universe.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Jerry</title>
		<link>http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/comment-page-1/#comment-12170</link>
		<dc:creator>Jerry</dc:creator>
		<pubDate>Fri, 26 Oct 2007 16:05:03 +0000</pubDate>
		<guid isPermaLink="false">http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/#comment-12170</guid>
		<description>Another paper, another challenge:

http://arxiv.org/PS_cache/arxiv/pdf/...710.3896v1.pdf

Ellis et al
&quot;We analyze the mean rest-frame ultraviolet (UV) spectrum of Type Ia Supernovae (SNe Ia) and its dispersion using high signal-to-noise Keck-I/LRIS-B spectroscopy for a sample of 36 events at intermediate redshift (z=0.5) discovered by the Canada-France-Hawaii Telescope Supernova Legacy Survey (SNLS)...

Although the mean SN Ia spectrum has not evolved significantly over the past 40% of cosmic history, precise evolutionary constraints are limited by the absence of a comparable sample of high quality local spectra. Within the high-redshift sample, we discover significant UV spectral variations and exclude dust extinction as the primary cause by examining trends with the optical SN color. Although progenitor metallicity may drive some of these trends, the variations we see are much larger than predicted in recent models and do not follow expected patterns.&quot;</description>
		<content:encoded><![CDATA[<p>Another paper, another challenge:</p>
<p><a href="http://arxiv.org/PS_cache/arxiv/pdf/...710.3896v1.pdf" rel="nofollow">http://arxiv.org/PS_cache/arxiv/pdf/&#8230;710.3896v1.pdf</a></p>
<p>Ellis et al<br />
&#8220;We analyze the mean rest-frame ultraviolet (UV) spectrum of Type Ia Supernovae (SNe Ia) and its dispersion using high signal-to-noise Keck-I/LRIS-B spectroscopy for a sample of 36 events at intermediate redshift (z=0.5) discovered by the Canada-France-Hawaii Telescope Supernova Legacy Survey (SNLS)&#8230;</p>
<p>Although the mean SN Ia spectrum has not evolved significantly over the past 40% of cosmic history, precise evolutionary constraints are limited by the absence of a comparable sample of high quality local spectra. Within the high-redshift sample, we discover significant UV spectral variations and exclude dust extinction as the primary cause by examining trends with the optical SN color. Although progenitor metallicity may drive some of these trends, the variations we see are much larger than predicted in recent models and do not follow expected patterns.&#8221;</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: L Riofrio</title>
		<link>http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/comment-page-1/#comment-10171</link>
		<dc:creator>L Riofrio</dc:creator>
		<pubDate>Sat, 06 Oct 2007 08:05:55 +0000</pubDate>
		<guid isPermaLink="false">http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/#comment-10171</guid>
		<description>There is ample reason to question whether the Universe is accelerating.  It seems to violate the First Law of Thermodynamics.</description>
		<content:encoded><![CDATA[<p>There is ample reason to question whether the Universe is accelerating.  It seems to violate the First Law of Thermodynamics.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Jerry</title>
		<link>http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/comment-page-1/#comment-10127</link>
		<dc:creator>Jerry</dc:creator>
		<pubDate>Fri, 05 Oct 2007 13:39:13 +0000</pubDate>
		<guid isPermaLink="false">http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/#comment-10127</guid>
		<description>Realizing that the distant population of supernova &#039;type Ia&#039; is not &#039;in family&#039; with local events is just the first step. The next step is to go back to 1994, when it was assumed (without spectral detail) that the distance population were identical to the brightest local events. We have to take the current crop of hypernova back to 1994 with us, and determine how similar the distant events observed in 1994 were to these brighter, longer burning nova we now know exist.

The real crux of the matter is this: If Riess &amp; Co. were comparing local supernova with distant hypernova, the proof of time dilation in the distant sample is lost - it is in fact nullified; at least as an astrophysical proof of a relativist concept. 

The next step is to look very hard at the Goldhaber &amp; Permutter papers between 1999 and 2002. The &#039;stretch factor&#039;, the single parametric used to scale the light curve width and magnitude; is clearly no longer applicable to this complex family of events. Why then, didn&#039;t the error analysis reveal a bias, this increase in absolute magnitude with increasing distance which is now becoming quite evident? The evidence was hidden by this same parametric assumption; that the light curve widths were time dilated, and in making the &#039;correction&#039;, the magnitude of more distant events has been scaled down by shortening the light curves. 

It may take another generation of scopes to fully test the hypothesis contained in the last three paragraphs, but this is the only reasonable interpretation I can find for why Goldhaber&#039;s supernova appeared to behave so uniformly; yet today they do not.</description>
		<content:encoded><![CDATA[<p>Realizing that the distant population of supernova &#8216;type Ia&#8217; is not &#8216;in family&#8217; with local events is just the first step. The next step is to go back to 1994, when it was assumed (without spectral detail) that the distance population were identical to the brightest local events. We have to take the current crop of hypernova back to 1994 with us, and determine how similar the distant events observed in 1994 were to these brighter, longer burning nova we now know exist.</p>
<p>The real crux of the matter is this: If Riess &amp; Co. were comparing local supernova with distant hypernova, the proof of time dilation in the distant sample is lost &#8211; it is in fact nullified; at least as an astrophysical proof of a relativist concept. </p>
<p>The next step is to look very hard at the Goldhaber &amp; Permutter papers between 1999 and 2002. The &#8217;stretch factor&#8217;, the single parametric used to scale the light curve width and magnitude; is clearly no longer applicable to this complex family of events. Why then, didn&#8217;t the error analysis reveal a bias, this increase in absolute magnitude with increasing distance which is now becoming quite evident? The evidence was hidden by this same parametric assumption; that the light curve widths were time dilated, and in making the &#8216;correction&#8217;, the magnitude of more distant events has been scaled down by shortening the light curves. </p>
<p>It may take another generation of scopes to fully test the hypothesis contained in the last three paragraphs, but this is the only reasonable interpretation I can find for why Goldhaber&#8217;s supernova appeared to behave so uniformly; yet today they do not.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Phil Hughes</title>
		<link>http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/comment-page-1/#comment-10075</link>
		<dc:creator>Phil Hughes</dc:creator>
		<pubDate>Thu, 04 Oct 2007 22:16:16 +0000</pubDate>
		<guid isPermaLink="false">http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/#comment-10075</guid>
		<description>Sorry. Drop the period...
http://arxiv.org/PS_cache/astro-ph/pdf/0701/0701912v2.pdf</description>
		<content:encoded><![CDATA[<p>Sorry. Drop the period&#8230;<br />
<a href="http://arxiv.org/PS_cache/astro-ph/pdf/0701/0701912v2.pdf" rel="nofollow">http://arxiv.org/PS_cache/astro-ph/pdf/0701/0701912v2.pdf</a></p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Phil Hughes</title>
		<link>http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/comment-page-1/#comment-10074</link>
		<dc:creator>Phil Hughes</dc:creator>
		<pubDate>Thu, 04 Oct 2007 22:10:25 +0000</pubDate>
		<guid isPermaLink="false">http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/#comment-10074</guid>
		<description>For those without access to APJ, a PDF can be obtained from arXiv: http://arxiv.org/PS_cache/astro-ph/pdf/0701/0701912v2.pdf.</description>
		<content:encoded><![CDATA[<p>For those without access to APJ, a PDF can be obtained from arXiv: <a href="http://arxiv.org/PS_cache/astro-ph/pdf/0701/0701912v2.pdf." rel="nofollow">http://arxiv.org/PS_cache/astro-ph/pdf/0701/0701912v2.pdf.</a></p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Astrolink [International Edition] &#187; Blog Archive &#187; Astrosphere for October 4th, 2007</title>
		<link>http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/comment-page-1/#comment-10061</link>
		<dc:creator>Astrolink [International Edition] &#187; Blog Archive &#187; Astrosphere for October 4th, 2007</dc:creator>
		<pubDate>Thu, 04 Oct 2007 18:42:48 +0000</pubDate>
		<guid isPermaLink="false">http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/#comment-10061</guid>
		<description>[...] Were older supernovae brighter? It could mess up our ability to measure distance in the Universe. Pamela has the details. [...]</description>
		<content:encoded><![CDATA[<p>[...] Were older supernovae brighter? It could mess up our ability to measure distance in the Universe. Pamela has the details. [...]</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Andrew Fisher</title>
		<link>http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/comment-page-1/#comment-10054</link>
		<dc:creator>Andrew Fisher</dc:creator>
		<pubDate>Thu, 04 Oct 2007 16:22:04 +0000</pubDate>
		<guid isPermaLink="false">http://www.starstryder.com/2007/10/03/type-1a-supernoave-a-non-standard-candle/#comment-10054</guid>
		<description>Thanks for digging into that article for us, I was afraid I was going to have to grab a subscription, or at least find it at the campus library. I also heartily approve of your copious use of within error bars(within error bars. ;))</description>
		<content:encoded><![CDATA[<p>Thanks for digging into that article for us, I was afraid I was going to have to grab a subscription, or at least find it at the campus library. I also heartily approve of your copious use of within error bars(within error bars. <img src='http://www.starstryder.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> )</p>
]]></content:encoded>
	</item>
</channel>
</rss>
