Supermassive black holes at the center of galaxy are believed to be produced Answer. O by the death of supermassive stars by mergers of many solar mass black holes during the process of galaxy formation soon after the creation of the universe
Q: Estimate the age of the Universe, in years, using an outdated value of 99.90 km/s/Mpc for Hubble’s…
A: Outdated value is, 99.9 km/s/Mpc So, the age of universe is calculated as, Age= 1Outdated value
Q: rmal radiation
A: Given: An active galaxy is explained as,
Q: You have discovered a galaxies which is extremely red. Based on the redshift of this galaxy, you…
A: This problem is based on the Hubble’s law. According to this law, we have the following expression.…
Q: What do you mean by weakly interacting massive particles, or WIMPs,?
A: Given, Weakly interacting massive particles (WIMP)
Q: 21) If the Hubble's constant for a universe is 25 km/s/Mly. Calculate the distance to a galaxy that…
A: Edwin Hubble discovered through observation that the Universe is expanding. Galaxies are moving away…
Q: The overall composition of the universe is Select one: Oa. 2% ordinary matter, 98% exotic dark…
A: To provide Composition of the universe.
Q: What is the radius of a 235.00m length of gold wire whose resistance is 0.32 KΩ
A: Given data L=235 mR=320 Ω
Q: A starburst galaxy produces only 50 new stars per year. (True or false)
A: A starburst galaxy is known for its high rate of star formation in comparison to the other galaxies.…
Q: Describe a quasar.
A: Quasar is an extremely luminous active galactic nucleus. inside quasar there is a supermassive black…
Q: (b) Draw the shape of the Milky Way for a spaceship with a velocity of 20%, 50%, and 90% of the…
A:
Q: Imagine that an observed distant galaxy is measured to have a distance of 40 Mpc by a Type Ia…
A:
Q: Calculate the redshift associated with a galaxy with a recessional velocity of 0.916c.
A: The change in frequency when observer and source are in relative motion is called the Doppler…
Q: Consider a universe in which the Hubble constant has been measured to have the value H0 = 50…
A: Hubble's law gives the idea that the universe is continuously expanding, and that galaxies are…
Q: In galaxy clusters, most of the galaxies appear to be elliptical galaxies because O They formed…
A: Galaxy clusters, most of the galaxies appear to be elliptical galaxies because......... Given:…
Q: 21) If the Hubble's constant for a universe is 15 km/s/Mly. Calculate the distance to a galaxy that…
A: As per the observations made by Edwin Hubble, it was seen that the galaxies were moving away from…
Q: Cepheid-stars, which are examples of “Standard Candles", are useful to astronomers as indicators of…
A: Solution: Cepheid variable stars and Type Ia supernovae are the most valuable standard candles.…
Q: Distance to Andromeda galaxy is around 2.538 Mly. Calculate its recessional velocity.
A: Our universe is constantly expanding, It was observed by Edwin Hubble when he saw the galaxies…
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: The redshift of a galaxy is observed to be 0.5. Calculate the recessional velocity of the galaxy.
A: When a light source moves away from the observer the wavelength will shift towards the red region of…
Q: What Hubble constant corresponds to an approximate age of the universe of 1010 y? To get an…
A:
Q: what are some fundamental properties of late type galaxies that our theories of galaxy formation…
A: All those galaxies which are included under Spiral and Irregular Galaxies are termed as Late Type…
Q: which galaxies are poorest in gas and dust? Which have the fewest bright stars?
A: Elliptical galaxies contains primarily old stars and they do not have much gas and dust. The…
Q: If you find a galaxy that contains globular clusters that are 2" in diameter, how far away is the…
A: Given Data The diameter of cluster is:D=25 pc=7.714×1017 m The globular cluster is:θarcsecond=2…
Q: At what redshift will the Lya line (2o = 1215°A) be centered in the Johnson-Cousins U band? (Quasars…
A: From the redshift formula, we have 1+z=λobsλemitz=redshiftλobs=obserevd…
Q: How do gamma-ray bursts provide insights into the most energetic events in the universe?
A: Gamma-ray bursts (GRBs) are extremely energetic explosions that have been observed in distant…
Q: We know that dark matter must exist in galaxies. If not, many of the stars in a galaxy would:
A: dark matter is the approximate 85% part of the universe. it affects the movement of the celestial…
Q: Sombrero Galaxy is classified as a: Sb Sa Irregular galaxy, we cannot see any spiral…
A: Sombrero galaxies are referred to spiral galaxy.
Q: Assume that the number density of stars in the Milky Way is 0.14 pc-3. (e) There are 10" stars…
A: Given, Number density of star is, ρ = 0.14 pc-3 Total number of stars in galaxy, N=1011 Let d is the…
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: Certain spiral galaxy is 10.6 Mpc away from us. How fast in km/s is this galaxy moving away from us?…
A: Given, Distance of Galaxy is = 10.6 Mpc The value of Hubble constant = 71 km/s/Mpc We need to…
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 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: Galaxy A is measured to have a smaller cosmological redshift than Galaxy B. Which galaxy is farther…
A: Redshift: It is stated as the change in the frequency of the light and is used to study the position…
Q: How many of you have been caught in a massive traffic jam on the NJ Turnpike or interstate only to…
A: please see the next step for solution
Q: Calculate the Schwarzschild radius for Milky Way.
A: To calculate schwarzschild radius of milky way
Q: Assume that the orbital speed of a star is measured at a distance of 15 kpc from he center of our…
A:
Q: ring galaxies often have nearby companions. What does that suggest?
A: The origin of ring galaxies is often debated. Some scientists believe that ring galaxies have formed…
Q: le of our g
A: Given: To explain the sharpley determines the sun and galaxy size as,
Q: Certain spiral galaxy is 8.6 Mpc away from us. How fast in km/s is this galaxy moving away from us?…
A: Write the given values with the suitable variables. d=8.6 MpcH0=69.1 km/s/Mpc Here, d is the…
Q: Why do we not see quasars near our galaxy?
A: Introduction: The word quasar stands for quasi-stellar radio source because the signals came from…
Q: Calculate the Hubble time for a universe with a Hubble constant of 60 km-s-1-Mpc-1.
A: Edwin Hubble observed that the galaxies were moving away from us. He calculated their recession…
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: 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…
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