Question
In: Physics
The cosmic microwave background CMB is a primordial glow of electromagnetic radiation which comes to us...
The cosmic microwave background CMB is a primordial glow of electromagnetic radiation which comes to us with almost equal intensity from every direction in the sky. The CMD shows a characteristic pattern of very finite bright and dim patches with a typical patch separation of 1° we would like to patch a telescope that can resolve these bright and dim patches distinguish two sources in the sky separated by 1°
suppose that we build our telescope to measure the CMB at frequency of 120 GHz is what diameter almost to the telescope circular aperture I have an order to just barely solve these features
Solutions
genius_generous answered 2 years agoRelated Solutions
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16. The cosmic microwave background radiation (CMB) is radiation that bathes the Universe from every direction,...
16. The cosmic microwave background radiation (CMB) is radiation
that bathes the Universe from every direction, and appears to be
emitted by a blackbody at a temperature of 2.7 Kelvins. This
radiation
a. comes from stars.
b. comes from supernovae.
c. is the redshifted glow of the hot young universe, appearing
much cooler today.
d. consists of cosmic rays emitted by dying stars.
We often say that the cosmic microwave background radiation (CMB, or CBR) is a direct viewing...
We often say that the cosmic microwave background radiation
(CMB, or CBR) is a direct viewing of the Big Bang. But actually,
the temperature of this black-body radiation (3 degrees K) is
insanely low for the Big Bang. Why is it so low, when the Universe
started out so hot? And why do we say now that the CMB represents
light from about 400,000 years after the Big Bang, rather than the
Big Bang itself?
Look up the term Cosmic Microwave Background Radiation. Discuss a conclusion obtained from the Cosmic Microwave...
Look up the term Cosmic Microwave Background Radiation. Discuss
a conclusion obtained from the Cosmic Microwave Background
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1. The Cosmic Microwave Background and Prizewinning Cosmology (a) How can we see the CMB if...
1. The Cosmic Microwave Background and Prizewinning
Cosmology
(a) How can we see the CMB if the photons were released 14
billion years ago? Shouldn't those photons be billions of light
years away by now?
(b) Who was awarded the 2006 Nobel Prize for Physics? What was
the prize for-- what were the results, and how were they
obtained?
(c) Why are these results from part (b) important?
1. The Cosmic Microwave Background and Prizewinning Cosmology (a) How can we see the CMB if...
1. The Cosmic Microwave Background and Prizewinning
Cosmology
(a) How can we see the CMB if the photons were released 14
billion years ago? Shouldn't those photons be billions of light
years away by now?
(b) Who was awarded the 2006 Nobel Prize for Physics? What was
the prize for-- what were the results, and how were they
obtained?
(c) Why are these results from part (b) important?
What is the cosmic microwave background (CMB)? What significant event after the Big Bang is related...
What is the cosmic microwave background
(CMB)?
What significant event after the Big Bang is related to
the appearance of the CMB, and when did that event
happen?
Was the CMB always radiating in the microwave part of
the spectrum?
What is cosmic inflation, and what are the problems
that inflation resolves?
What is Olber's paradox, and what is its
resolution?
What is the cosmic microwave background and what role does it play in cosmology?
What is the cosmic microwave background and what role
does it play in cosmology?
What is the origin of the Cosmic Microwave Background? What is this evidence for? We observe...
What is the origin of the Cosmic Microwave Background? What is
this evidence for?
We observe many irregular galaxies in the universe. What is the
likely cause of irregular galaxies? What properties would we expect
to see in an irregular galaxy?
Why are the spiral arms of spiral galaxies so bright compared
to the rest of the galaxy? What are the arms thought to be?
What will the temperature of the cosmic microwave background be when the average distances between galaxies...
What will the temperature of the cosmic microwave background be
when the average distances between galaxies are 1.7 times as large
as they are today? (Hint: The peak wavelength of photons in the
background will then also be 1.7 times as large as it is
today.)
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