We've found 8 Cosmic Microwave Background tests

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Blake Terry
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Pat Coker
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Patricia Smith
77 terms
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Astronomy Mid Term Final – Flashcards 62 terms
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Candace Young
62 terms
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Suzette Hendon
6 terms
Cosmic Microwave Background Hydrogen And Helium
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Rae Jordan
97 terms
Cosmic Microwave Background Protons Neutrons Electrons
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Patricia Harrah
34 terms
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Astronomy Chapter 23 Sorting Task – Flashcards 9 terms
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Margaret Bruce
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Compared to when the cosmic microwave background was first released, the radiation of the cosmic microwave background today is __________.
fainter and has most of its photons at longer wavelengths
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If observations had shown that the cosmic microwave background was perfectly smooth (rather than having very slight variations in temperature), then we would have no way to account for___________.
how galaxies came to exist
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Which statement about the cosmic microwave background is not true?
It is the result of a mixture of radiation from many independent sources, such as stars and galaxies.
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The idea of dark matter arose to explain gravitational effects observed in galaxies and clusters of galaxies. However, studies of the early universe (especially the cosmic microwave background and of chemical abundances) also tell us something about dark matter. What do they tell us?
They add further support to the idea that dark matter really exists and is made of non-ordinary (nonbaryonic) matter, such as WIMPs
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photons of cosmic microwave background released
Sometime after the first five minutes
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cosmic microwave background (CMB) radiation
Isotropic microwave radiation from every direction in the sky having a 2.73-kelvin (K) blackbody spectrum. The CMB is residual radiation from the Big Bang.
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The cosmic microwave background refers to
The leftover radiation from the Big Bang, last emitted at the end of the era of nuclei, and redshifted into the microwave part of the electromagnetic spectrum.
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Cosmic Microwave Background Radiation
the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about 2.725 kelvin
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The cosmic microwave background is the highly redshifted radiation of the early Big Bang.
Cosmic microwave background radiation (CMB)
The CMB is electromagnetic radiation in the microwave region that fills the universe. It has a blackbody spectrum corresponding to a temperature of about 2.7K. It is the remnant of the high temperatures at the time of the Big Bang and provided one of the strongest pieces of evidence in favor of the Big Band model.
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