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Based on the observed red shifts in the spectral lines of distant galaxies astronomers conclude that?
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The spectral lines from distant galaxies do not match spectral lines on Earth due to?
wavelength shift
The spectra of most galaxies show redshifts this means that their spectral lines are what?
shifted towards the red end of the spectrum
What do astronomers use to study the property of the stars?
Some astronomers study how matter behaves using particle accelerators.
What is Vega spectral class?
The spectral class is A0Va.
What is the spectral class of Antares?
Antares has a spectral class of M1LB.
Based on the observed red shifts in the spectral lines of distant galaxies?
Astronomers conclude that the universe is expanding, because wavelengths are increasing.
The spectral lines of elements when observed in distant galaxies show a shift towards?
The red end of the spectrum.
The spectral lines from distant galaxies do not match spectral lines on Earth due to?
wavelength shift
How much do astronomers use spectral analysis to classify stars?
a lot
Spectral lines are of particular importance in astronomy because?
For one reason, astronomers can figure out what stars are composed of by looking at their spectral lines.
The spectra of most galaxies show redshifts this means that their spectral lines are what?
shifted towards the red end of the spectrum
What has the author Gustavo Ramon Bruzual-Alfonzo written?
Gustavo Ramon Bruzual-Alfonzo has written: 'Spectral evolution of galaxies'
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.
The spectra of most galaxies show redshifts this means that their spectral lines?
have wavelengths that are longer than normal:)
How do astronomers determine the composition of distant celestial objects?
Spectroscopy is the systematic study of spectra and spectral lines. Spectral lines are used to provide evidence about the chemical composition of distant objects. So the answer to your question is through spectroscopy.. not spectrometry like the previous editor posted.
When astronomers look for evidence of hydrogen gas in the spectra of the Sun the planets and nearby stars the positions of the spectral features or lines due to hydrogen are different or the same?
They are the same.
What do astronomers use to study the property of the stars?
Some astronomers study how matter behaves using particle accelerators.
