In: Physics
Which of the following is not found in the Milky Way Galaxy's spiral arms?
(a)O and B stars
(b)young star clusters
(c)emission nebulae
(d)globular clusters
(e)dust lanes
Globular clusters are not located in the spiral arms of the milky-way galaxy.
Explaination:
(a)O-tye and B-type stars are typically located in the regions of active star formation such as a spiral arms of a spiral galaxy.
(b)when stars are born ,they devolop from large clouds of molecular gas.These stars form a cluster which usually found in the arms of our spiral milky-way galaxy.
(c) Bright emission nebulae and hot , young stars are usually present in the spiral arms of spiral galaxy.Emision nebulae are the sites of recent star formation .
(d)Globular clusters are old clusters of stars that have remained in the gravitationally bound system .They are found in the spherical halo of the milky-way galaxy .Hence they are distributed above , below and level with the plane of flat,disk shaped milky-way.
(d)Dust lanes are also located in the spiral arms of the milky-way galaxy .
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