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Buzz Bloom
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In the spring 2016 issue of the Johns Hopkins Magazine, there is a non-technical article (in graphic novel format) about a new instrument, dubbed CLASS, which is intended to detect "pinwheel patterns" caused by gravitational waves originating in the inflation era acting on the CBR. If these patterns are found, it will be strong observational evidence that the inflation era actually happened.
The instrument was built by a JHU team of professors and students, and was then shipped and has recently arrived at its site in the Atacama Desert in the Chilean Andes. It is expected to become operational later this year. The leader of the team is Charles Bennett who was also a principal member of the WMAP team.
I am hopeful that one or more PF participants can answer a few questions for me.
1. What would the the conjectured pinwheel patterns actually look like? Are they spiral? If so, why?
2. In reading about the WMAP project's mapping of the CBR,
I found that the angular resolution of WMAP ranged between
What does current theory about inflation and its GWs predict concerning the required angular resolution to detect the pinwheel patterns? At what average angle would the center of pinwheel spirals be from each other?
Regards,
Buzz
The instrument was built by a JHU team of professors and students, and was then shipped and has recently arrived at its site in the Atacama Desert in the Chilean Andes. It is expected to become operational later this year. The leader of the team is Charles Bennett who was also a principal member of the WMAP team.
I am hopeful that one or more PF participants can answer a few questions for me.
1. What would the the conjectured pinwheel patterns actually look like? Are they spiral? If so, why?
2. In reading about the WMAP project's mapping of the CBR,
I found that the angular resolution of WMAP ranged between
0.93 deg at 22GHz and < 0.23 deg at 90GHz.
Presumably this resolution was not sufficient to detect the conjectured CBR pinwheel patterns.What does current theory about inflation and its GWs predict concerning the required angular resolution to detect the pinwheel patterns? At what average angle would the center of pinwheel spirals be from each other?
Regards,
Buzz
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