Part A Where in a spiral galaxy would you be most likely to find an O-type star?
ID: 293137 • Letter: P
Question
Part A Where in a spiral galaxy would you be most likely to find an O-type star? (Remember that O-type stars are the hottest of the main- sequence stars.) O In between spiral arms O In a spiral arm O Outside the visible galaxy O Near the galactic center Submit Request Answer Part B Which of the following statements best describes the motions of stars in a spiral galaxy? O Stars orbit the galactic center faster than the spiral arms themselves O Stars orbit the galactic center more slowly than the spiral arms themselves. O Stars typically do not move at all in a spiral galaxy. O Stars orbit the galactic center at the same rate as the spiral arms themselves.Explanation / Answer
1)
a) - In between the spiral arms
O type stars are formed in the regions of the active star making or formation, these regions are spiaral arms of the galaxy, or a number of galaxies, these are formed and illuminated in such a way that it can light up of the surrounding matter thats why the colouration of the galaxy spirals.
2)
d)- Stras orbit the galactic cente at the faster rate than the spiral arms themselves-
Stars can rotate around the spiral galaxy and the speed of the rotation changes with the presence of star in inside or outside of the corontation radius, beyond this radius the speed of the stars are higher than the spiral arms of the galaxy and vice versa and below this radius the orbit velocity is less.