A galaxy shaped as a disk with no arms is called a(n) Elliptical galaxy Irregula

Question

A galaxy shaped as a disk with no arms is called a(n) Elliptical galaxy Irregular galaxy S0 galaxy Ring galaxy Barred spiral galaxy Giant spirals are the largest galaxies in the Universe. True False The velocity dispersion method can be used to find the _______ of a galaxy. _______ Rich galactic clusters ______. are very spread out, without a defined center contain a wide variety of galaxy types and sizes contain gas that is rich in metals are composed of mostly elliptical galaxies are rare, because galaxies are usually isolated in space

Explanation / Answer

STEP 1

Lenticular galaxies (denoted S0) are often confused with elliptical galaxies, however they are rather different. They look as smooth and regular as Ellipticals, however they have a disk and a bulge (Ellipticals do not have a disk). They are basically spiral galaxies with NO arms.

The answer is S0 galaxy

STEP 2

IT is false . The giant spirals are not the largest galaxy in universe

The giant galaxy cluster, Abell 2029, houses galaxy IC 1101 at its core. At 5.5 million light years across, over 100 trillion stars and the mass of nearly a quadrillion suns, it's the largest known galaxy of all. Still, IC 1101 beats them all, extending for 5.5 million light years.

SPEP 3

The velocity dispersion methods can be used to find out the cluster’s mass of galaxy

In astronomy, the velocity dispersion () is the statistical dispersion of velocities about the mean velocity for a group of objects, such as an open cluster, globular cluster, galaxy, galaxy cluster, or supercluster. By measuring the radial velocities of its members, the velocity dispersion of a cluster can be estimated and used to derive the cluster's mass from the virial theorem. Radial velocity is found by measuring the Doppler width of spectral lines of a collection of objects. The more radial velocities one measures, the more accurately one knows their dispersion. A central velocity dispersion refers to the of the interior regions of an extended object, such as a galaxy or cluster.

STEP4

Rich galactic clusters are very spread out without a definite center

The answer is a

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.