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It's used to determine the magnetic field strength of stars. That's not really a "why", though. I suppose the "why" would be "because they want to know the magnetic field strength of stars".

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Q: Why is the zeeman effect used by astronomers?
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Differences between anomalous zeeman effect and normal?

normal zeeman effect occurs in strong magnetic field while anamolous zeeman effect occur in weak magnetic field


What does zeeman effect mean?

The splitting of single spectral lines of an emission or absorption spectrum of a substance into three or more components when the substance is placed in a magnetic field. The effect occurs when several electron orbitals in the same shell, which normally have the same energy level, have different energies due to their different orientations in the magnetic field. A normal Zeeman effectis observed when a spectral line of an atom splits into three lines under a magnetic field. An anomalous Zeeman effectis observed if the spectral line splits into more than three lines. Astronomers can use the Zeeman effect to measure magnetic fields of stars. Compare Stark effect.


Sunspots are known to be magnetic phenomena because?

Sunspots are known to be magnetic phenomena because of the Zeeman effect. The Zeeman effect has been found in sunspots.


What is a Zeeman slower?

A Zeeman slower is a system which allows the cooling of atoms to temperatures of a few kelvins, based on the principle that a magnetic field can change the resonance frequency of an atom using the Zeeman effect.


For what did Pieter Zeeman receive a Nobel Prize?

Pieter Zeeman was a Dutch scientist who won the Nobel Prize for physics in 1902 with his partner Hendrik Lorentz. They discovered the Zeeman effect, a physics principle.


What is the zeeman effect?

The Zeeman effect is the splitting of single spectral lines into three or more in the presence of a magnetic field.


What has the author Ted Hadeishi written?

Ted Hadeishi has written: 'Zeeman atomic absorption spectrometry' -- subject(s): Atomic absorption spectroscopy, Zeeman effect


Why splitting of spectral lines take place in magnetic field?

The Zeeman Effect


What is stark and zeeman effect?

Benazir bhutto ki pudhi chatna chata hoon


Describe about zeeman and stark effect?

zeeman efeect is splitting of a single spectral line into multiple ones in the pressence of a magnetic filed and stark effest ,the same only takes place in an electrical field.


When was Michaël Zeeman born?

Michaël Zeeman was born in 1958.


When did Michaël Zeeman die?

Michaël Zeeman died in 2009.