A star has a spectrum with lines indicating the presence of ionized helium. This star should be classified as a(n) _____ type st

Question

katrin2010 [14]

3 years ago

9

A star has a spectrum with lines indicating the presence of ionized helium. This star should be classified as a(n) _____ type st

ar.
O
A
G
M

Physics

2 answers:

Oduvanchick [21] · Answer 1 · 2021-11-17T08:55:58+03:00

Oduvanchick [21]3 years ago

4 0

It should be o,not 100% sure tho

scoundrel [369] · Answer 2 · 2021-11-17T10:49:01+03:00

Answer:

A star has a spectrum with lines indicating the presence of ionized helium. This star should be classified as a(n) <u>O</u> type star.

Explanation:

Helium is a noble has. Its formation and ionization requires high temperature which is possible only in core of stars. Stars classified based on temperatures. Type O stars have very high temperatures (more than 30,000 K). At these temperatures, Helium gets ionized. Thus, the spectrum of O-type stars indicates the presence of ionized helium more than the neutral.