alaxy? Explain.
Q: Assume that we have measured the distance to a close by galaxy, with apparent magnitude m1 = 6, to…
A: I HOPE THIS HELPS YOU 🙏.PLEASE GIVE STUDENT RATING----> IF YOU FOUND IT HELPFUL.
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: Why do the spiral arms of our galaxy move around the center of the galaxy? a) Spiral arms do not…
A: Normal spirals have arms that emanate from the nucleus, while barred spirals have a bright linear…
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: Indicate whether the following statements are true or false. (Select T-True, F-False. If the first…
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Q: What are the three main types of galaxies, and what are the peculiarities? What type is the Milky…
A: There are three main types of galaxies. They are, spiral galaxies, elliptical galaxies, and…
Q: = 2. Using a Hubble constant of Ho 70 km/s/Mpc, find the distance to the galaxy cluster that moves…
A: Distance to the galaxy cluster is 92.8571 Mpc or 3.029×108light years. Explanation:Hubble's law…
Q: In the image below you see two interacting galaxies; one is nearly face -on and the other is nearly…
A: The shape of the galaxies says the evidence of the tidal disruption.
Q: why do you have to know the distance to a galaxy to find its mass?
A: The orbital motion of stars explains the masses of galaxies. The stars in a heavier galaxy exhibit…
Q: The Andromeda Galaxy is a member of the Local Group of galaxies. It is approaching us. Does this…
A: Given Andromeda galaxy is member of the local group of galaxies approaching us. Hubble law Hubble…
Q: If we find a galaxy that is moving away at 72,000 km/s, what does Hubble’s law tells us about the…
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Q: Find the equivalent of Kepler's three laws of motion if the gravita- tional force were to behave…
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Q: If the active core of a galaxy contains a black hole of 10°M, (1 million solar masses), what will…
A: mass of black hole, M=106 MΘ=106*2*1030=2*1036 Kg radius of orbit,r=0.33 Au=0.33*1.5*1011=0.495*1011…
Q: For each of the following parts, find the most possible type of object by considering the…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: If the active core of a galaxy contains a black hole of 106 Me, what will the orbital period be for…
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Q: Perhaps the most fundamental problem in all of astronomy is the determination of distance to the…
A: "The Hubble Law relates the recessional speed of distant objects (measured with the Doppler Effect)…
Q: If a galaxy is 9.1 Mpc away from Earth and recedes at 511 km/s, what is H0 (in km/s/Mpc)? 2. What…
A: Note: As per the policy, only the first question will be solved. If you want the solution for other…
Q: Explain why galaxies can have different shapes. please explain briefly and clearly
A: Reason why galaxies have different shapes : When we gaze up into the night sky, we can see stars…
Q: he Milky Way's
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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: 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: 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: Which of the following is an accurate statement about quasars?
A: ANS: They are abnormally massive, luminous stars at the cores of ancient galaxies.
Q: 6. If a spiral galaxy is 20' in diameter and you measure its distance to be 1 Mpc, what is its…
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Q: 2. Suppose an absorption line in a spectrum of light from a very distant galaxy is 5015 Angstroms.…
A: Write the expression for the Dopler’s effect and solve for the speed (v) of the separation, that is…
Q: Describe the age and temperature of stars that make up spiral galaxies and their location.
A: A galaxy can be bombarded by other, smaller galaxies. Even if a galaxy is isolated, internal…
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: Suppose you want to observe the molecular gas in a galaxy with redshift z using the rotational…
A: Suppose you want to observe the molecular gas in a galaxy with redshift z using the rotational…
Q: The surface mass density of the disk of a galaxy is given in the provided image. Σ0 is the central…
A: The total mass of the disk can be calculated by integrating the surface mass density over the entire…
Q: The surface brightness profiles of spiral galaxy disks follow the Sersic formula with n = 1. How…
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Q: Are the galaxies red-shifting or blue-shifting? Explain. (You may find the big-bang theory helpful).…
A: This problem can be solved using the Hubble's Law.
Q: Globular clusters revolve around the Galaxy in highly elliptical orbits. Where would you expect the…
A: A globular cluster is densely packed group of stars bound together by gravity. These clusters are…
Q: Which one of these types of galaxies do you expect to have the largest star formation activity?…
A: A galaxy which has high relative flux density, which shows it has a dense region that helps in more…
Q: For a circular velocity profile of the type (r) = ar¹ ar1/9, where a is a constant and r is the…
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Q: In the reading, you were told that there were roughly 10,000 galaxies in the image of the Hubble…
A: Given: one image of hubble ultra deep field is roughly 10 square arcminutes. Number of galaxies in…
How astronomers determine the distance of a galaxy? Explain.
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- Looking for ___ hrThe type of galaxy that consists almost entirely of old stars and is thus less blue (more yellow and reddish) than the other types is [Select] and our Milky Way Galaxy is a [Select] barred spiral elliptical irregular F3 [Select] जी 4 4») Q Search DII de in % 5 spiral all of these galaxy types consist mostly of very old stars A 2 LO F7 & 7 PrtScn 8 Home P EndPlease solve page 3 and 4 using the table below NGC NO. Galactic Longitude (deg) Galactic Latitude (deg) Distance from Sun (kpc) Distance (polar view) (kpc) NGC NO. Galactic Longitude (deg) Galactic Latitude (deg) Distance from Sun (kpc) Distance (polar view) (kpc) 1904 227 -30 13 1 1 6402 21 15 9 9 4590 300 36 10 8 6626 8 -6 6 6 5024 333 80 18 3 6637 2 -10 9 9 5272 42 79 10 2 6656 10 -8 3 3 5904 4 47 7 5 6681 3 -12 9 39 6093 353 20 10 9 6356 7 10 15 15 6121 351 16 2 2 6284 358 10 15 15 6171 3 23 6 5 6838 57 -5 4 4 6205 59 41 8 6 6864 20 -26 21 19 6218 16 26 5 5 6981 35 -33 17 14 6254 15 23 4 4 7078 65 -27 10 9 6266 354 7 7 7 7089 53 -36 12 10 6273 357 9 9 9 7099 27 -47 8 5…
- A galaxy's rotation curve is a measure of the orbital speed of stars as a function of distance from the galaxy's centre. The fact that rotation curves are primarily flat at large galactocen- tric distances (vrot(r) ~ constant) is the most common example of why astronomer's believe dark matter exists. Let's work out why! Assuming that each star in a given galaxy has a circular orbit, we know that the accelera- tion due to gravity felt by each star is due to the mass enclosed within its orbital radius r and equal to v?/r. Here, ve is the circular orbit velocity of the star. (a) Show that the expected relationship between ve and r due to the stellar halo (p(r) xr-3.5) does not produce a flat rotation curve. (b) Show that a p(r) ∞ r¯² density profile successfully produces a flat ro- tation curve and must therefore be the general profile that dark matter follows in our galaxy.Figure 2 shows the "rotation curve" of NGC 2742. It plots the “radial velocity (V)" (how fast material is moving either toward or away from us) that is measured for objects at different distances (R = radius") from the center of the galaxy. The center of the galaxy is at 0 kpc (kiloparsecs) with a speed of 9 km/sec away from us. (These velocities have been corrected for the observed tilt of the galaxy and represent true orbital velocities of the stars and gas.) 200 100 U4779 -100 As you can see, one side of the galaxy is moving with a negative velocity (spinning toward us), while the other side has a positive velocity (spinning away from us). Using Newton's gravity equation, we will be able to determine the gravitational mass of the entire galaxy and how the mass varies versus distance from the galaxy's center. -200 -8 8 -4 Radius (kpc) Read the following text carefully and follow the instructions: Select five radii spaced evenly from 0-10 kpc across the galaxy. Your selections should…what is the difference between an E0 galaxy and an E1 galaxy?
- What objects did Harlow Shapley use to figure out the extent of the Milky Way Galaxy and the location of its center? A. thick clouds of cold hydrogen giving off 21-cm radiation B. globular clusters C. HIl regions D.dust clouds E. gamma-ray burstsThe Sun is located in a. the center of the Milky Way Galaxy b. the bulge of the Milky Way Galaxy c. the halo of the Milky Way Galaxy d. the disk of the Milky Way GalaxySuppose you have obtained spectra of several galaxies and have measured the observed wavelength of the H-Alpha line (rest wavelength = 656.3 nm) to be Galaxy 1: 658.1 nm. Galaxy 2: 667.1 nm. Galaxy 3: 677.6 nm. Calculate the radial velocity of each of these galaxies.