Comments on: New Technique for Finding Intermediate Mass Black Holes http://www.universetoday.com/2008/01/30/new-technique-for-finding-intermediate-mass-black-holes/ Space and astronomy news Sun, 8 Nov 2009 10:14:11 -0600 http://wordpress.org/?v=2.8.5 hourly 1 By: Johnny Blues http://www.universetoday.com/2008/01/30/new-technique-for-finding-intermediate-mass-black-holes/comment-page-1/#comment-10172 Johnny Blues Thu, 31 Jan 2008 13:20:22 +0000 http://www.universetoday.com/2008/01/30/new-technique-for-finding-intermediate-mass-black-holes/#comment-10172 Totaly agreed David Madison, Sr. The 1% estimate of Post Nova Xray supernova could greatly alter proximity measurements in much of the universal age, speed and distance estimates. Now, do we have the data to identify the non-Type 1a nova previously misdentified? Totaly agreed David Madison, Sr. The 1% estimate of Post Nova Xray supernova could greatly alter proximity measurements in much of the universal age, speed and distance estimates. Now, do we have the data to identify the non-Type 1a nova previously misdentified?

]]> By: charles http://www.universetoday.com/2008/01/30/new-technique-for-finding-intermediate-mass-black-holes/comment-page-1/#comment-10168 charles Thu, 31 Jan 2008 13:05:52 +0000 http://www.universetoday.com/2008/01/30/new-technique-for-finding-intermediate-mass-black-holes/#comment-10168 There is already a mechanism that can potentially disrupt our standard candle theory. It is the combination or collision of two subcritical size white dwarfs resulting in a supernova from a star which achieved a mass in excess of 1.4 solar masses - the magic number for type Ia. This is likely to be rather rare, but it seems to be an explaination for at least one moderately recent SN that was apparently a Ia yet seemed a bit too bright for the distance. If this is on the order of 1% or less, it probably will not severely affect measurements, but if somehow it was more in the 10% or greater it could really affect them. There is already a mechanism that can potentially disrupt our standard candle theory. It is the combination or collision of two subcritical size white dwarfs resulting in a supernova from a star which achieved a mass in excess of 1.4 solar masses – the magic number for type Ia. This is likely to be rather rare, but it seems to be an explaination for at least one moderately recent SN that was apparently a Ia yet seemed a bit too bright for the distance.

If this is on the order of 1% or less, it probably will not severely affect measurements, but if somehow it was more in the 10% or greater it could really affect them.

]]> By: David Madison, Sr. http://www.universetoday.com/2008/01/30/new-technique-for-finding-intermediate-mass-black-holes/comment-page-1/#comment-10163 David Madison, Sr. Thu, 31 Jan 2008 12:47:52 +0000 http://www.universetoday.com/2008/01/30/new-technique-for-finding-intermediate-mass-black-holes/#comment-10163 The supernova mechanism is so unusual that we should not confuse it with a Type 1a. Those always explode with the same energy because they always have the same mass. This one will not. The Type 1a is useful because it tells us exactly how far away the object lies. If a supernova looks like a Type 1a, but does not have its energy, then we need to reevaluate our distance estimates based largely on these standard candles. It might even affect our understanding of the expansion of the universe. The supernova mechanism is so unusual that we should not confuse it with a Type 1a. Those always explode with the same energy because they always have the same mass. This one will not.

The Type 1a is useful because it tells us exactly how far away the object lies. If a supernova looks like a Type 1a, but does not have its energy, then we need to reevaluate our distance estimates based largely on these standard candles. It might even affect our understanding of the expansion of the universe.

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