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Three spectra of Quasars at redshifts >4.3

robin_astro
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robin_astro

robin_astro

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These spectra were recorded using my specially modified ALPY200 faint object spectrograph. My spectra are in red overlaid on spectra from the literature in grey.

The main peak is the Lyman alpha line, normally in the UV at 1216 Angstrom but here cosmologically redshifted into the red region of the visible spectrum. (The light travel time is over 12 billion years)

More details on this page on the BAA website

https://britastro.org/observations/observation.php?id=20210411_134753_85f4b3ebf4faaefe

Cheers

Robin

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Edited by robin_astro
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