Describe the cluster method for measuring a galaxy’s mass.
Q: What color is the center of this galaxy and why?
A: The supermassive black hole is the centre of the galaxy is located at inside the bright white patch…
Q: The hydrogen Balmer line has a wavelength of 486.1 nm. It is shifted to 552 nm in a galaxy's…
A: The red shift of hydrogen is, 1+z=λ2λ1z=552486.1-1 =0.1356
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: What is Type of cluster and What is application area of cluster ??
A: Clusters are larger than groups, but there is no much difference between the two. The type of…
Q: What are the challenges of determining the structure of the Milky Way? Dark matter absorbs light…
A: 1. Dark matter does not absorb, reflect or emit light.
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: If a group of galaxies is revolving around its center at 240 miles/sec how fast is it moving in…
A: Let the galaxy's speed be denoted by v. The speed of the galaxies is 240 miles per second.
Q: We know that there are small particles (called dust) in the galaxy which dim the light coming from…
A: A galaxy is a large assembly of stars, gas, and dust, held together by gravity.
Q: 21-centimeter radiation observations of the galaxy reveal a. the location of neutral hydrogen…
A: Correct Option is "a"
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: 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: igure 2: Left: A picture of a nearby galaxy taken with an ultraviolet telescope. Right: A picture of…
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Q: solar masses. (Hint: Use the formula for circular velocity, V. = VS"; make sure you convert relevant…
A: Given Data: The orbital velocity of a globular cluster is, ve=417 km/s The distance from the centre…
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: 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: The Virgo galaxy Cluster Much smaller than the Local Group. Contains 35 galaxies.…
A: the Virgo cluster forms the heart of the larger Virgo supercluster that comprises approximately…
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: Among the globular clusters orbiting a distant galaxy, one is moving at 534 km/s and is located 14…
A: Given data: Speed of the globular clusters around the galaxy is, v= 534 km/s= 534000 m/s Distance of…
Q: classification helped Darwin understand how creatures evolve. How has classification helped you…
A: Our universe contains million number of stars. These stars continuously emit light radiation, heat…
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: 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: Advanced Physics Discuss briefly how i) the value of rotation parameters of the galaxy can be…
A: Advanced Physics Discuss briefly how i) the value of rotation parameters of the galaxy can be…
Q: I Take the diameter AB of the Earth's orbit as 3 x 10 km and consider a star S at a distance d, such…
A: solution of the question 1 figure is attached to this problem
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: Write down the Doppler formula for light as an equation. Explain each letter's meaning. Then…
A: Light travels without any medium, so unlike sound for light, the Doppler shift for light that…
Q: n this picture shown, the differences of light spectra of different galaxies compared to a…
A: Spectral lines occur due to the absorption of particlular wavelength of light which is…
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: If a quasar is 1,980 times more luminous than an entire galaxy, what is the absolute magnitude of…
A:
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: If a galaxy has an apparent radial velocity of 2,319 km/s and the Hubble constant is 70 km/s/Mpc,…
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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: 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 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: The surface brightness profiles of spiral galaxy disks follow the Sersic formula with n = 1. How…
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Q: The image below combines visual (blue) with radio (red) to show the galaxy radio astronomers call…
A: The presence of large radio lobes is manifest from the red portion of the image. Also the presence…
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: how far away is the galaxy
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Q: Which of the following best describe the reasons we have to infer that a supermassive blackhole…
A: Actually the blackhole is a very higher density object . According to the general theory of…
Q: Which of the following is not correct regarding Cepheid variable stars. They can be measure out…
A: Cepheid variables are not main sequence stars. Rather, they are stars that are in the helium burning…
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: A galaxy at redshift z has an infrared luminosity of LIR. What is the approximate star formation…
A:
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