The spectra of the cores of Seyfert galaxies contain emission lines of highly ionized atoms that are   a. split from the strong electric fields.   b. blueshifted.   c. split from the strong magnetic fields.   d. broadened.   e. all of the above.

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: 3. The formula for Hubble's Law using the velocity v is valid only for velocities much smaller than…

A: Given data: Redshift z=4.89. The recessional velocity is given as,  v=cz+12-1z+12+1 Here, c is the…

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 satellite that found the ripples in the cosmic background that led to galaxies is     the…

A: The satellite that found the ripples in the cosmic background that led to galaxies is the Cosmic…

Q: Where is the bulk of the mass concentrated in the region depicted here? 133 Anten Milky Way.. SMC…

A: The above pic is the pic of the local group, which consists of    The Milky Way  The Andromeda…

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: 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: The approximate diameter of the disk of the Milky Way is   a. 8.0 A.U.   b. 8.0 light-years.   c.…

A: To determine diameter of the disk of the milky way

Q: What started the clumping of matter in the early universe that eventually became the seeds of…

A: The force that is carried by the field of virtual astronomical particles in the quantum field is…

Q: Explain how the Hubble law allows you to estimate the distances to galaxies.

A: According to Hubble's law, the velocity of galaxy with respect to earth is directly proportional to…

Q: The large black hole at the center of our galaxy is estimated to be a. 3.7 solar masses. b.…

A: Given : Asked to choose the correct option for the mass of the large black hole present at the…

Q: Suppose you wanted to measure the distance to an elliptical galaxy around 5 Mpc away using variable…

A: Given: To measure the distance in an elliptical galaxy having 5 Mpc used as the variable stars. To…

Q: What are the types of galaxies?

A: Required :   The types of galaxies.

Q: True or False: Dwarf elliptical galaxies and giant ellipticals probably formed in entirely different…

A: To find true or false: Dwarf elliptical galaxies and giant ellipticals probably formed in entirely…

Q: Which of the following might you expect to be an additional consequence of the fact that galaxies…

A: Given Which of the following might you expect to be an additional consequence of the fact that…

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: 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: The luminosity of a Seyfert galaxy nucleus varies in a time-scale of 6 days. What could be the…

A:

Q: In the deep space between galaxies, the number density of atoms is as low as 106 atoms/m3, and the…

A:

Q: 8. Milky Way The Sun is a star in the Milky Way galaxy. When viewed from the side, the galaxy looks…

A: Diameter is Thickness is Note:Speed of light is Find:(a) The diameter and thickness in (b) The…

Q: What type of galaxy is NCG 1317? a. E5 b. SBa c. S0 d. Sa

A: