What evidence can you cite that our galaxy has a galactic corona?
Q: A globular cluster is located 4.57 kpc interior to the Sun's orbit and 7.93 kpc below the disk of…
A:
Q: If a quasar is 1,240 times more luminous than an entire galaxy, what is the absolute magnitude of…
A: Hey dear I have solved the question . Have a look
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: suppose a galaxy is What is the recessional velocity of this galaxy?
A: We have to evaluate the recessional velocity of the galaxy Speed of light = 3 x 108 m/s = 3 x 105…
Q: If you assume that a globular cluster 2 arc minutes in diameter is actually 27 pc in diameter, how…
A: The expression for the distance from small angle formula, Angular diameter206265=linear…
Q: If a standard passenger aircraft can fly at 0.37 km/s (828 mph), how long (in yr) would it take to…
A:
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: If a galaxy contains a supernova that at its brightest has an apparent magnitude of +15, how far…
A: Given The apparent magnitude of the supernova, mv =+15The absolute magnitude of the supernova, Mv…
Q: A galaxy cluster has a recessional velocity of 19,000 km/s. Using the best estimate for Hubble's…
A: To calculate the distance of the distant galaxies in megaparsecs (Mpc) Hubble’s law is used. If the…
Q: If a globular cluster contains 1 million stars and is 25 pc in diameter, what is the average…
A: The diameter of the globular cluster is d= 25 pc. Number of stars contain by the open clusters n= 1…
Q: If a galaxy contains a supernova that at its brightest has an apparent magnitude of +15, how far…
A: The magnitude-distance formula be defined as, d=10mV-MV+55 Where, MV be defined as the absolute…
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: 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: Describe the cluster method for measuring a galaxy’s mass.
A: Cluster Method (or) Lensing cluster Mass Estimation: We know that the gravitational lensing is one…
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: Spiral Galaxy with 3 differences each and 2 similarities.
A:
Q: If the Sun is 4.6 billion years old, how many times has it orbited the Milky Way galaxy?
A:
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: Why do you think the Andromeda galaxy has four times the stars as the Milky Way, yet is only…
A: One of the important attribute for the galaxies are that its Galactic halo which is an extended ,…
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: If we plot the apparent brightnesses of stars in a globular cluster versus their surface…
A: Given, If we plot the apparent brightness of stars in a globular cluster versus their surface…
Q: Because of interstellar dust, astronomers can see at most about 5 kpc into the disk of the galaxy at…
A: Stars create elements inside them through fusion. These will get slowly ejected as the star die.…
Q: Milky Way galaxy has about 5 x 10° solar masses of gas in total. If 13 solar masses of that gas is…
A: Thousands of stars, dust particles, and gas fill the Milky Way. Observing it from the top or bottom…
Q: If a galaxy contains a supernova that at its brightest has an apparent magnitude of +12, how far…
A: Given:The apparent magnitude of the supernova,mv=12Theabsolute magnitude of the supernova,Mv=-17Find…
Q: 13-5. The reason that massive neutrinos were considered as a candidate for solving the miss- ing…
A: 5) The density of photons and neutrinos is 500 photons/cm3. It is required to find the individual…
Q: If a quasar is 1,980 times more luminous than an entire galaxy, what is the absolute magnitude of…
A:
Q: If the sun is 4.6 billion years old, how many times has it orbited the Milky Way? (The sun is 8,300…
A:
Q: If active core of a galaxy contains a black hole of 10^6 M, what will the orbital period be for…
A:
Q: you assume that a globular cluster 4 arc minutes in diameter is actually 27 pc in diameter, how far…
A:
Q: A two-arm spiral density wave is moving through the Galactic disk. At the 8-kpc radius of the Sun's…
A:
Q: If a galaxy has an apparent radial velocity of 2,319 km/s and the Hubble constant is 70 km/s/Mpc,…
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: If a quasar is 1,360 times more luminous than an entire galaxy, what is the absolute magnitude of…
A: The absolute magnitude of the Milky Way galaxy is mA = - 21 FB/FA = 1360 Let mB = absolute…
Q: Why are interstellar lines so narrow?
A: Spectral lines are formed due to electrons making transitions between the energy levels inside the…
Q: why does the galaxy shown below have so much dust in its disk? How big do you suppose the halo of…
A: A halo is an extended, almost spherical component of a galaxy which extends beyond the main, visible…
Q: If astronomers were to find they have made a mistake and our solar system is actually 7.8 (rather…
A: Let m be defined as the mass of the sun, and M be defined as the mass of the galaxy. Since the sun…
Q: how far away is the galaxy
A:
Q: Assume that an average globular cluster is 25 pc in diameter. If you observe a galaxy that contains…
A: For the small angle, the approximation is, sin θ≅ tan θ ≅ θIf the angle θ is expressed in…
Q: What is at the center of the Milky Way Galaxy?
A: Required: What is at the center of the Milky Way Galaxy?
Q: (a) Rank the following components of the interstellar medium in order of the wavelengths at which…
A: (a). Components of the interstellar medium are detected due to the interaction between photons of…
Q: If a galaxy contains a supernova that at its brightest has an apparent magnitude of +18, how far…
A:
Q: Assume that a typical galaxy contains about 200 billion stars and that there are more than 150…
A: Given, a typical galaxy contains about 200 billion stars and that there are more than 150 billion…
Step by step
Solved in 2 steps
