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Yellow Hypergiant

All articles tagged with #yellow hypergiant

Giant Star WOH G64 Shifts Hue, Hinting at Impending Supernova
space-and-astronomy1 month ago

Giant Star WOH G64 Shifts Hue, Hinting at Impending Supernova

Astronomers say the star WOH G64 in the Large Magellanic Cloud has transformed from a red supergiant into a yellow hypergiant (a change tied to observations starting in 2014), is shedding its outer layers, and is heating up—signs that it may be nearing its explosive end. At about 1,500 solar radii, it remains one of the universe’s largest stars, is younger than 5 million years, and new research in Nature Astronomy argues the star could be heading toward a supernova in its relatively short life arc.

via ZME Science|
#astronomy#red-supergiant#space
Giant Star WOH G64 Shifts to Yellow Hypergiant, Foreshadowing a Supernova
science1 month ago

Giant Star WOH G64 Shifts to Yellow Hypergiant, Foreshadowing a Supernova

Astronomers report that the star WOH G64 in the Large Magellanic Cloud has transitioned from a red supergiant to a yellow hypergiant, with ongoing mass loss and heating—a potential sign it is nearing a supernova. The change may result from interactions with a companion or a pre-supernova wind, representing a short-lived but crucial phase in the evolution of a very massive star.

via SciTechDaily|
#red-supergiant#science#stellar-evolution
Giant Star Turns Yellow, Hinting at a Possible Supernova
science2 months ago

Giant Star Turns Yellow, Hinting at a Possible Supernova

Astronomers monitoring the red supergiant WOH G64 in the Large Magellanic Cloud report a rapid evolution into a yellow hypergiant, with a temperature rise of about 1,000 C and significant shrinking. This rare color and size change may signal an impending supernova, though researchers offer two possible explanations—binary interaction with a companion or a prior eruptive episode—and the star’s exact fate remains uncertain.

via Gizmodo|
#astronomy#binary-star#cosmic-changes
Gigantic Star WOH G64 Poised for Cosmic Catastrophe
science3 months ago

Gigantic Star WOH G64 Poised for Cosmic Catastrophe

Astronomers say WOH G64, a red supergiant in the Large Magellanic Cloud about 165,000 light-years away and roughly 30 solar masses with a radius over 1,500 suns, is likely transitioning toward a yellow hypergiant after shedding outer layers; this may lead to a spectacular end in a supernova or direct collapse into a black hole, with the fate expected to unfold over hundreds to thousands of years in cosmic time.

via Yahoo|
#large-magellanic-cloud#red-supergiant#science
Astronomers watch a 1,540-solar-radius star flip from red to yellow, hinting at a possible supernova
astronomy3 months ago

Astronomers watch a 1,540-solar-radius star flip from red to yellow, hinting at a possible supernova

Astronomers tracking the star WOH G64 in the Large Magellanic Cloud have observed it change from a red supergiant into a rare yellow hypergiant, a dramatic and unusually slow transformation that could mark the star’s evolution toward a core-collapse supernova or direct black-hole formation. The object, about 28 solar masses and roughly 1,540 times the Sun’s size, may be part of a binary system, with interactions potentially influencing its path to death. While this hints at a possible explosive finale, the final fate remains uncertain and would likely occur on timescales of hundreds to thousands of years rather than within our lifetime; the findings were reported in Nature.

via Space|
#astronomy#large-magellanic-cloud#red-supergiant