How do spiral and elliptical galaxies differ in terms of the presence or absence of disk and halo components?

How do spiral and elliptical galaxies differ in terms of the presence or absence of disk and halo components. The major difference between spiral and elliptical galaxies is that elliptical galaxies lack a significant disk component, although both types have the halo component.

How elliptical irregular and spiral galaxies differ from each other?

Spiral and barred spiral galaxies are subclassified by how tightly wound the spiral arms appear. Elliptical galaxies don’t show any structure, but have a smooth ellipsoidal shape, appearing as a large spherical or elliptical ball of stars. Irregular galaxies are those with no defined shape.

How does the evolution of spiral galaxies differ from the evolution of elliptical galaxies?

While spiral galaxies are bright, elliptical galaxies are dim. Spiral galaxies are hotbeds of star formation, but elliptical galaxies aren’t nearly as prolific because they contain less gas and dust, which means fewer new (and brighter) stars are born.

What is the major difference between elliptical galaxy in a spiral galaxy?

Spiral galaxies have a flat disk like shape and a bulging center with spiral arms consisting the disk. Elliptical galaxies are ellipsoids with no clearly visible internal structure. Spiral galaxies have a very dense nucleus and a region of stars bulging outwards from the disks and, therefore, called the central bulge.

Why are the spiral galaxies bluer than the elliptical galaxies quizlet?

An elliptical galaxy lacks a disk component. elliptical. Why do spiral galaxies appear blue in color? Their light output is dominated by hot, massive blue stars.

How is the spiral galaxies and irregular galaxies similar?

They have a distinctive shape with spiral arms in a relatively flat disk and a central “bulge”. They have a bulge and halo, like spiral galaxies, but don’t have the flat disk of stars. The stars in ellipticals tend to be older. Irregular galaxies have no identifiable shape or structure to them.

What is the difference between a barred spiral galaxy and a normal spiral galaxy?

Spiral galaxies They are divided into two parallel classes: normal spirals and barred spirals. The normal spirals have arms that emanate from the nucleus, while barred spirals have a bright linear feature called a bar that straddles the nucleus, with the arms unwinding from the ends of the bar.

What is the difference between spiral galaxies and barred spiral galaxies?

Spiral galaxies The normal spirals have arms that emanate from the nucleus, while barred spirals have a bright linear feature called a bar that straddles the nucleus, with the arms unwinding from the ends of the bar.

Which type of galaxy spiral or elliptical do you think is more likely to have planets that harbor life explain your answer in a few sentences?

giant elliptical galaxies
Sifting through this data set we found that giant elliptical galaxies, which have a rounded shape rather than spiral arms like our Milky Way, win the “most-likely-to-be-habitable” title.