Bright Quasar at z = 1.92

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Another bright quasar at z = 2.19

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This quasar is even further at redshift Z = 2.733

Spectrum: DESI spectral viewer

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You can see that the magnesium line is off the chart to far redshifted for this spectrograph.

Even higher redshift z = 2.962

Spectrum: DESI spectral viewer

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z = 2.978

Spectrum: DESI spectral viewer

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High redshift quasar z = 3.164

This one the Lyman Alpha emission has shifted all the way past yellow with a wavelength greater than 500 nm.

Spectrum: DESI spectral viewer

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im glad you started this thread. Quasars are so interesting to me. Such incredible power they have.

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Yes Quasars are really cool. :smiley:

A local quasar z<0.1 with an optical and infrared spectrum

Spectrum

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On SIMBAD it says it is an Active Galaxy candidate, so it is barely active. I guess this is because the Nitrogen line is broadened but not the other lines.

Here is an intermediate redshift z = 0.8 Quasar

With spectrum

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