
It has been determined that white dwarfs, which are the remnants of sun-like stars, can take on different colors thanks to the elements in their atmosphere.
In the research conducted by astrophysicists from the University of Warwick, it was determined that the white dwarf star named WDJ1330+6435, 65 light years away from the Earth, shines in a pale green color.
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The color of most stars is limited to shades such as orange, white or blue, depending on temperature. White dwarfs are the remnants left after Sun-like stars have completed their lives.
According to CNN International, astrophysicist Mark Hollands from the University of Warwick, the lead author of the study, said in a statement to the channel that the color of most stars changes depending on temperature and is limited to a few tones such as orange, white or blue.
'IT MAY BE A PLANETARY SYSTEM'
Hollands noted that white dwarfs, which are "dense stellar remnants" left behind after Sun-like stars end their lives, can shine in various colors.
Stating that white dwarf stars may take on different colors over time as a result of their interactions with helium gas and other chemical elements in their atmosphere, Hollands stated that the presence of elements such as iron, magnesium and sodium, which are generally found in rocks, on the surface of the stars may indicate that a planetary system existed around these stars in the past.
151 OF THEM WERE EXAMINED
Hollands, who examined 151 known white dwarf stars approximately 65 light years away from the Earth within the scope of the research, pointed out that the elements that must be present on the surface of the white dwarf star for it to appear green must be calcium, sodium and lithium.
Hollands noted that the white dwarf star examined in the research and named "WDJ1330+6435" contains rocky materials rich in sodium in its atmosphere, and this element causes the color of the star to turn pale green as it absorbs light in yellow, orange and red wavelengths.
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