The Tully-Fischer method relies on being able to relate the mass of a galaxy to its rotation velocity. Stars in the outer-most regions of the Milky Way galaxy, located at a distance of 50 kpc from the galactic centre, are observed to orbit at a speed vrot determine the mass in the Milky Way that lies interior to 50 kpc. Express your answer in units of the Solar mass. = 250 km s-1. Using Kepler's 3rd Law,
Q: the
A: The galaxy with stars bulged at the center surrounded by a disc with arms is called a spiral galaxy.…
Q: Suppose that the outer stars of a galaxy have an orbital velocity of 150 km/s. If the radius of the…
A: Given data: rgalaxy=4 kpcv=150 km/s Need to determine the orbital period of the outer stars.
Q: An important part of the lifecycle of galaxies like the Milky Way is the self regulation of…
A: Required : The correct choice.
Q: The traditional theory of the formation of our galaxy CANNOT explain a. the existence of the disk…
A: a. The existence of the disk of the galaxy
Q: The sun is about 8 kpc from the center of the galaxy. A kpc or kiloparsec is equal to a. 10…
A: A kpc or kiloparsec is equal to the 1000 parcec Here, In the option this value is not given
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: Let us assume that our galaxy consists of 2.5 × 1011 stars each of one solar mass. How long will a…
A: Mass of the galaxy is
Q: If a standard passenger aircraft can fly at 0.27 km/s (604 mph), how long (in yr) would it take to…
A: The problem is based upon distance time relation. We know that distance is the length. For very…
Q: A given star orbits the center of its galaxy at an average speed of v_star, at a distance of r_star…
A: Given, Velocity of star,vS=200km/s=200×103m/sRadius of star,RS=9 kpc=9×3.086×1019mVelocity of…
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: 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: Indicate whether the following statements are true or false. (Select T-True, F-False. If the…
A: T T T F T T
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: 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: If the active core of a galaxy contains a black hole of 106 Me, what will the orbital period be for…
A:
Q: What is the name for the spherical cloud of thinly scattered stars and globular clusters that…
A: Given : What is the name for the spherical cloud of thinly scattered stars and globular clusters…
Q: Assume that the Milky Way has a central bulge of uniform density with a radius R. Also assume that…
A: 1) In the rotation velocity profile of the galaxies, the velocity of the stars outside the bulge…
Q: the sun has an orbital speed of about 220kms^-1 around the centre of the galaxy , whose distance is…
A: orbital speed of sun = 220 kms= 220000 msdistance = 28000 light years
Q: How often (in years) does a planetary system form in our galaxy?
A: Number of stars in our galaxy = 3 x 1011 stars time to consider = 1010 years rate of star formation…
Q: Suppose that stars were born at random times over the last 1010 years. The rate of star formation is…
A: Given that, The total number of stars in the Milky way is N=8×1011 And the stars were born at random…
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: Suppose you observe a star orbiting the galactic center at a speed of 1100 km/s in a circular orbit…
A:
Q: 1.004 1.002 1.000- 0.998 0.996 0.994 0.992 0.990 10 20 30 40 50 t-2458543 [BJD] From the data,…
A: A: Orbital period of the planet can be estimated from the plot. B: The orbital distance of the…
Q: Observations of the central region of the galaxy M87 indicate that stars which are 60 light years…
A:
Q: n(r) = nge where r represents the distance from the centre of the Galaxy, Ro is the distance of the…
A: (a)As we have to find the maximum distance by the help of the relation of absolute and apparent…
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: If a galaxy is 8.9 Mpc away from Earth and recedes at 497 km/s, what is H, (in km/s/Mpc)? km/s/Mpc…
A:
Q: hat are the characteristics of an E7 Galaxy? What about E0 galaxy? Explain.
A: E is the letter by which Elliptical galaxies represented. These elliptical galaxy are label as En…
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: How many atomic nuclei (diameter = 1 × 10¬1 cm) would it take to stretch from one end of the known…
A: diameter of atomic nuclei (d) = 10-13 cm = 10-15 m distance of one end of universe to its other end…
Q: The first stars to form in our galaxy a. had circular orbits. b. had highly elliptical…
A: Population 1 stars are the newer and younger stars.
Q: If you find a galaxy that is the same size and mass as our Milky Way Galaxy, what orbital velocity…
A: Mass of our galaxy (M1): 4.0 X 1011 M Semi-major axis of the orbit (a): 51 kpc
Q: You observe a star orbiting in the outer parts of a galaxy. The distance to this galaxy is known,…
A:
Q: If a galaxy contains a supernova that at its brightest has an apparent magnitude of +21, how far…
A: Apparent magnitude mV = + 21 Absolute magnitude MV = - 17
Q: 2. The diameter of our Milky Way is roughly - 105 ly(light-year). Planet X at the edge of our Milky…
A:
Q: 3) A supernova of luminosity 1 billion solar luminosities is used as a standard candle to measure…
A: The luminosity of supernova is given as, LSn=1 billion solar luminosities=1×109LS, The distance…
Q: You observe a star orbiting in the outer parts of a galaxy. The distance to this galaxy is known,…
A: Given, Distance, R=19kpcR=19×3.08×1019mR=58.52×1019m Speed, v=382×103m/s The velocity of the star is…
Q: The lower limit of the mass of the galaxy is a. 100 solar masses. b. 100,000 solar…
A: A lower mass limit is provided because of the timing argument. The timing argument states that all…
Q: A star in the Milky Way that is about 60 percent of the way out from the center of the galaxy has an…
A: Answer: Detail solution in below.
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: 13-4. The Sun is moving with speed 2.5 X 105 m/s in a circular orbit about the center of the Galaxy.…
A: Given data: speed of sun, v = 2.5 x 105 m/s To find: i) Time period…
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: 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: Suppose there exists a hypothetical galaxy with mass MG around the center of which a solar system…
A: Given, Mass of Galaxy = 1× 10 40 kg Mass of solar system = 2× 1028 kg Radius = 2.5 × 1020 m We need…
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