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Cosmic Microwave Observations Yield More Evidence of Primordial Inflation
Physics Today | July 2001 | Bertram Schwarzchild

Posted on 09/14/2001 2:23:44 PM PDT by RadioAstronomer

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To: B Knotts
I want to know if it is a result of physcal or muonetary policy. And is Greenspan really God?
21 posted on 09/15/2001 1:54:04 AM PDT by Anthem
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To: longshadow
Do you know if this instrument has been launched yet, and when it is scheduled to start producing useful data?

Launched successfully and should reach L2 and start data collecting at the end of the month. It'll take nine months to get a complete full sky survey. MAP will be real good for temperature sensitivity, but only mediocre when compared to Maxima and Boomerang for angular resolution.

22 posted on 09/15/2001 2:53:41 AM PDT by Moonman62
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To: Physicist
To my eye, the chi-squared per degree of freedom seems considerably less than one.

That's my favorite pick-up line ;-)

23 posted on 09/15/2001 2:54:57 AM PDT by Moonman62
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To: Moonman62
Launched successfully and should reach L2 and start data collecting at the end of the month. It'll take nine months to get a complete full sky survey. MAP will be real good for temperature sensitivity, but only mediocre when compared to Maxima and Boomerang for angular resolution.

Excellent.

Thanx.

24 posted on 09/15/2001 7:44:42 AM PDT by longshadow
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To: longshadow
Thanks for the heads up. This is good stuff. I should be keeping on my cosmology more, that is for sure.
25 posted on 09/16/2001 3:49:22 PM PDT by ThinkPlease
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To: ThinkPlease
Thanks for the heads up. This is good stuff. I should be keeping on my cosmology more, that is for sure.

We're counting on folks such as yourself, "RadioAstronomer," and "Physicist" to explain the details of things like Inflationary Cosmology to the "man in the street" who wanders into these threads from time to time. I'll field the simpler question or two from time to time, but I leave the "heavy lifting" to you guys.

We're are just glad that folks like you drop in occasionally; it is a tremendous resource the FR readers to have you guys around.

26 posted on 09/16/2001 4:02:05 PM PDT by longshadow
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To: longshadow
7 - thanks for the physics for the ignorant explaination. You saved a lot of questions.
27 posted on 09/16/2001 4:44:42 PM PDT by XBob
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To: XBob
7 - thanks for the physics for the ignorant explaination. You saved a lot of questions.

You're most welcome. I wasn't sure if my response would answer your questions, or just create a whole new set of questions. I defer to the really knowledgeable guys like "Physicist," "RadioAstronomer," and "ThinkPlease" on the really deep, detailed, or complex issues.

That said, I hope you were paying close attention; there'll be a pop-quiz next period!

28 posted on 09/16/2001 6:41:30 PM PDT by longshadow
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To: RadioAstronomer
I'll have to think about that for a bit.

I'll try to dig up the paper itself; I'm sure it will say what the chi-squared actually is.

I base my estimate on the expectation that, if the errors are correctly estimated, somewhat more than a third of the data points will be more than one sigma away from the curve. In the above plot, only three or four data points are so aberrant out of 20.

29 posted on 09/16/2001 7:08:40 PM PDT by Physicist (sterner@sterner.hep.upenn.edu)
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