Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

Seyfert galaxies are____ spiral galaxies with unusually luminous nuclei extremel

ID: 290094 • Letter: S

Question

Seyfert galaxies are____

spiral galaxies with unusually luminous nuclei

extremely luminous objects with high redshifts only

elliptical galaxies with very broad emission lines

explained by the double-exhaust model

glowing green gases due to excitation from energy from an active core

a.

spiral galaxies with unusually luminous nuclei

b.

extremely luminous objects with high redshifts only

c.

elliptical galaxies with very broad emission lines

d.

explained by the double-exhaust model

e.

glowing green gases due to excitation from energy from an active core

Explanation / Answer

Seyfert galaxies are spiral galaxies with unusually luminous nuclei

Explanation:

Seyfert galaxies are defined by any galaxy having an active luminous core/nuclei