rmal radiation
Q: Because the galaxies are moving away from us, the light they emit is shifted toward the shorter,…
A: Question: Because the galaxies are moving away from us, the light they emit________________
Q: (b) Draw the shape of the Milky Way for a spaceship with a velocity of 20%, 50%, and 90% of the…
A:
Q: You observe a faint galaxy and find that a spectral line normally found in the visible part of the…
A: The wavelength at which we see absorption lines are unique in themselves. This was used by…
Q: how do deep images by the Hubble Space Telescope confirm the bottom-up theory of galaxy formation?
A: The bottom up model, also known as Hierarchal Clustering s the most accepted way for galaxy…
Q: how might you be misled if you studied only the brightest galaxies in a cluster?
A: There are some of the observations which may mislead if you studied only the brightest galaxies in…
Q: Explain how the temperature of hot gas can be used to find out about the gravitational pull of a…
A: Given: The hot gas temperature which is used to find the gravitational pull To find: The explanation…
Q: Find the distance to a galaxy whose redshift reveals that it's re- ceding from us at 2.5×104 km/s.
A: As per the Hubble expansion, the universe is expanding. This was observed from the galaxies moving…
Q: If a galaxy has an apparent radial velocity of 4000 km/s and the Hubble constant is 70 km/s/Mpc, how…
A: Hubble's law states that galaxies move away from Earth with a velocity proportional to their…
Q: Which galaxies are moving the fastest away from us?
A: Our nearest galaxy is Milky way.
Q: How did Harlow establish the sun's position in the galaxy and the galaxy's size?
A: Given How did Harlow establish the sun's position in the galaxy and the galaxy's size, as following…
Q: Which of the following types of electromagnetic radiation would be the most useful for studying deep…
A: Which types of electromagnetic radiation would be most useful for studying deep into the core of our…
Q: If the active core of a galaxy contains a black hole of 106 M, what will the orbital period be for…
A: The expression for the orbital period, T=2πrv =2πrGMr =2πr32GM
Q: The very first "image" of a black hole, at the centre of galaxy M87, was recently taken by the Event…
A: Given: The wavelength of the hydrogen line is λ = 21 cm The diameter of the earth is D = 12742 km…
Q: If a very distant galaxy looks overall "blue" to astronomers, from this they can conclude that: O…
A: A region with many young stars appears blue in color. High-mass stars live fast and die young, using…
Q: Calculate the total starlight intensity reaching earth for an infinitely large (static) universe.…
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Q: If the active core of a galaxy contains a black hole of 10° Mo, what will the orbital period be for…
A: This problem can be solved using the formula for circular velocity and then dividing the distance by…
Q: A galaxy's distance from us is measured to be 49 Mpc. Using the same value of the Hubble constant,…
A: Given:distance of the galaxy, d = 49 Mpcstandard value for hubble's constant is, H = 70…
Q: Fourteen years ago, a quasar was found to be located 8 billion light years away. If the age of the…
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Q: If an O-type star and our galaxy were at the same distance, which would have a greater magnitude? a)…
A: Given: The O-type star and our galaxy at same distance. The apparent magnitude decreases with the…
Q: why are the shells visible around some elliptical galaxies significant?
A: The shell structures in the elliptical galaxies indicates the extremely low surface brightness and…
Q: 8. If a galaxy has an apparent radial velocity of 2000 km/s and the Hubble constant is 72 km/s/Mpc,…
A: Using Hubble's law we can solve this
Q: What kinds of objects lie in the halo of a spiral galaxy?
A: Given :- Spiral galaxy and what kinds of objects lie in the halo of it.
Q: What does the redshift of the galaxies tell us about their motion with respect to the Earth?
A: The displacement of the spectrum of an astronomical object toward longer wavelength (red) due to the…
Q: how many Galaxy are there in all?
A: The huge collection of gas, dust, and billions of stars and their stars, which are held together by…
Q: What is the mechanism for the energy output of quasars?
A: Quasars are high luminosity objects in the galaxy, having very high masses (ranging from millions to…
Q: How do we know andromeda galaxy is moving towards us?
A: Andromeda Galaxy is the closest galaxy to Milky Way at 2.5 million light-years. Unlike other…
Q: If active core of a galaxy contains a black hole of 10^6 M, what will the orbital period be for…
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Q: What does the direction of the magnetic field depend on In lectromagnetism?
A: In electromagnetic field the magnetic field is depend on the flow of current.
Q: Briefly discuss and compare the three general types of galaxies.
A: We need to discuss and compare the three general types of galaxies.
Q: If a galaxy is 100,000,000 parces away and has absolute magnitude of -20.0 what is the galaxies…
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Q: 3 Billion Light-years 2 Billion 2 Billion Light-years Light-years 2.5 Billion 2.5 Billion…
A: Introduction: Hubble's law is the observation that galaxies are moving away from the Earth at speeds…
Q: le of our g
A: Given: To explain the sharpley determines the sun and galaxy size as,
Q: How do galaxies form?
A: Two leading theories describe how the first galaxies were created. One says galaxies were born when…
Q: The Andromeda Galaxy is 2 million light years away from the Milky Way. How far away is the…
A: A light year is the distance travelled by the light in a year
Q: How do we know galaxies are moving away from us?
A: Electromagnetic radiations are affected by the Doppler shift. When the source is in relative motion…
Q: 4) Calculate the redshift of a galaxy with a recessional velocity of 0.68c. (
A: When a celestial object is moving away from the observer the light observed from the object will…
Q: What is Superstring theory?
A: Unification of the particles and the fundamental forces of nature into one theory is known as the…
Q: Is the NGC 4440 galaxy observable from the Calar Alto Observatory?
A: Calar Alto Observatory Calar Alto, a 2,168-meter-high (7,113-foot) mountain in the Sierra de Los…
Q: Through the use of various measurement techniques, it has been found that most galaxies are rapidly…
A: Through the use of various measurement techniques, it has been found that most galaxies are rapidly…
Q: how far away is the galaxy
A:
Q: What is at the center of the Milky Way Galaxy?
A: Required: What is at the center of the Milky Way Galaxy?
Q: What evidence has been found that suggests a black hole at the center of our galaxy?
A: The centre of every galaxy is a matter of great curiosity for astronomers. Blackhole is the object…
Q: The Perseus-pices supercluster of galaxies is 64 Mpc from Earth. How long (in years) does it take…
A: Given: Perseus-pices supercluster separation from earth→D=64 Mpc Standard conversion: 1…
Is the source of light from the jets of an active galaxy from thermal radiation or chemical emission spectrum?
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