If a galaxy has a redshift of 0.35 and the hydrogen line has a wavelength of 486.3 nm, what will be the wavelength coming out of the galaxy as seen from Earth?
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: The Centaurus supercluster of galaxies is 52 Mpc from Earth. How long (in years) does it take light…
A: Given that The Centaurus supercluster of galaxies is 52 Mpc from Earth. then we have to determine…
Q: An 800 nm spectral line when observed from a galaxy is shifted to 920 nm. Calculate the redshift.
A: Redshift is the process by which light from moving sources is shifted to longer wavelengths.…
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: The spectral lines of various elements are detected in light from a galaxy in the constellation Ursa…
A: The equation for red shift is, λobs=λ1-vc
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: 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: If a galaxy is 9.0 Mpc away from Earth and recedes at 488 km/s, what is H0 (in km/s/Mpc)? km/s/Mpc…
A: The question above has been given from Hubble's law. This law is also known as the Hubble-Lemaitre…
Q: A galaxy is observed receding from Earth with a speed of 2800 km/s. If the Hubble constant is 22…
A:
Q: Galaxy will emit synchrotron radiation as a sun forms
A: The star forming region of a Spiral Galaxy will emit synchrotron radiation as a sun forms in the…
Q: Galaxy B moves away from galaxy A at 0.519 times the speed of light. Galaxy C moves away from galaxy…
A:
Q: Given the redshift of a galaxy is 0.440 the observed wavelength is 480 nm. What is the actual…
A: When the source of electromagnetic radiation is moving away from the observer the radiation will…
Q: If a galaxy is 9.2 Mpc away from Earth and recedes at 475 km/s, what is H0 (in km/s/Mpc)?
A:
Q: What is the recession speed of a galaxy cluster which is 50Mpc away from Earth? Is the light from…
A: Hubble Law It state that distant galaxies are moving away from our earth with a recession…
Q: All Radio Galaxies have the following number of plasma jets and lobes a) 2 b) 5 c) 1 d) 4…
A: Radio galaxies have two plasma jets and lobes.
Q: 5.4 In a negatively curved universe containing only matter (2, < 1, K = -1), show that the present…
A: Given, the universe contains only matter and Ωo<1 So scale factor will be a=12ΩoΩo-1coshθ-1…
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: A Type la supernova explodes in a galaxy at a distance of 8.70 x 10' light-years from Earth. If…
A: Given value--- Hubble constant = 68.1 km/s/Mpc . distance of galaxy from Earth = 8.70 × 107 light…
Q: If we knew that a distant galaxy were 8.56 x 1021 meters away from earth, what velocity could we…
A: The velocity of a distant galaxy can be calculated using Hubble's Law. Hubble's Law states that the…
Q: If a very distant galaxy looks overall "blue" to astronomers, from this they can conclude that: O…
A: A region with many young stars appears blue in color. High-mass stars live fast and die young, using…
Q: Suppose that a galaxy has 109 M⊙ of neutral HI gas with a temperature of about 10 K. Estimate the…
A: Given Data: The mass of the galaxy is, M = 109 M Temperature about 10k The luminosity of the 21cm…
Q: The time for a galaxy to cross from one side of a cluster to the other is called the crossing time.…
A: We are given the velocity of galaxy. We are also given the diameter of cluster. This diameter is…
Q: Based on Figure 1 below, which galaxies are moving away from us the fastest? Velocity (km/sec) 2000…
A: first option is correct
Q: If a quasar is 1,980 times more luminous than an entire galaxy, what is the absolute magnitude of…
A: Given: Luminous Intensity of Entire Galaxy,IA=ILuminous Intensity of Quasar,IB=1980IA=1980IAbsolute…
Q: A galaxy with a spherically symmetric distribution of matter has a mass density profile of the type…
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: The density profile of a galaxy's extended dark matter halo is given in the provided image. r0 and…
A:
Q: What kinds of objects lie in the halo of a spiral galaxy?
A: Given :- Spiral galaxy and what kinds of objects lie in the halo of it.
Q: A galaxy is found to be receding at a velocity of 3.0 x 104 km-s-1. Calculate the distance to the…
A: Edwin Hubble discovered through observation that the Universe is expanding. Galaxies are moving away…
Q: Consider that the absolute luminosity of the disk of the Milky Way, in the blue band, is L_B=…
A: Given The total luminosity of the galaxy = 2.3×1010 LB Sun The absolute magnitude…
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: What are the types of galaxies?
A: Required : The types of galaxies.
Q: how many Galaxy are there in all?
A: The huge collection of gas, dust, and billions of stars and their stars, which are held together by…
Q: If a galaxy is 8.9 Mpc away from Earth and recedes at 510 km/s, what is H0 (in km/s/Mpc)?
A: The Hubble constant can be calculated by v=H0d Where v is velocity in km/s Ho is Hubble constant in…
Q: A galaxy is moving away from Earth. The "blue" hydrogen line at 434 nm emitted from the galaxy is…
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Q: alaxy? Explain.
A: Given: To explain the how astronomers find the distance of the galaxy is given as,
Q: The Andromeda Galaxy is 2 million light years away from the Milky Way. How far away is the…
A: A light year is the distance travelled by the light in a year
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: Pretend that galaxies are spaced evenly, 7.0 Mpc apart, and the average mass of a galaxy is 1.0 ✕…
A: The average density of matter in the universe is given by
Q: Based on comparison with the Moon, it can be calculated that Andromeda would have to have a diameter…
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Q: What is the magnitude of the merger of two galaxies which have the magnitudes m1 and m2?
A:
Q: If a galaxy is 9.0 Mpc away from Earth and recedes at 510 km/s, what is H? What is the Hubble t
A: Hubble's law states that galaxies are moving away from Earth and the farther they are faster they…
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: Astronomers are studying the supermassive black hole (SMBH) of an AGN with a mass of 108 Mo. The…
A: Given : Red shift of SMBH = 0.05 Velocity of dispersion = 300 km/s…
Q: The redshift measurements of spectra from magnesium and iron are important in understanding distant…
A: Given, For Kα (n=2)For Lα(n=3)Rydberg Constant,R∞=1.097373×107/m We know the Moseley equation, For K…
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