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1. Supergiant - Wikipedia
wikipedia.org
Link: https://en.wikipedia.org/wiki/Supergiant
Description: Temperature. There are supergiant stars at all of the main spectral classes and across the whole range of temperatures from mid-M class stars at around 3,400 K to the hottest O class stars over 40,000 K. Supergiants are generally not found cooler than mid-M class. See more
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2. Supergiant Stars | Facts, Information, History & Definition
nineplanets.org
Link: https://nineplanets.org/supergiant-stars/
Description: WEBJun 11, 2020 · The temperature range of supergiant stars spans from around 3,450 K to 20,000 K. Supergiant stars can have masses from …
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3. Red supergiant - Wikipedia
wikipedia.org
Link: https://en.wikipedia.org/wiki/Red_supergiant
Description: OverviewEvolutionClassificationPropertiesDefinitionClustersExamplesSee alsoRed supergiants develop from main-sequence stars with masses between about 8 M☉ and 30 or 40 M☉. Higher-mass stars never cool sufficiently to become red supergiants. Lower-mass stars develop a degenerate helium core during a red giant phase, undergo a helium flash before fusing helium on the horizontal branch, evolve along the AGB while burning helium in a shell around a dege…
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4. Supergiant star | Massive, Luminous, Bright | Britannica
britannica.com
Link: https://www.britannica.com/science/supergiant-star
Description: WEBLearn about the different types of stars categorized according to their mass and temperature - red dwarfs, red giants, supergiants, white, and brown dwarf stars. …
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5. Astronomers accurately measure the temperature of red …
sciencedaily.com
Link: https://www.sciencedaily.com/releases/2021/02/210228114313.htm
Description: WEBFeb 28, 2021 · Summary: Red supergiants are a class of star that end their lives in supernova explosions. Their lifecycles are not fully understood, partly due to difficulties …
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6. Chemical signatures of iron predict red supergiant temperature
phys.org
Link: https://phys.org/news/2021-03-chemical-signatures-iron-red-supergiant.html
Description: WEBMarch 1, 2021. Chemical signatures of iron predict red supergiant temperature. by University of Tokyo. The red supergiant appears as a red starburst between two orange …
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7. How to accurately measure the temperature of red …
stackexchange.com
Link: https://astronomy.stackexchange.com/questions/41749/how-to-accurately-measure-the-temperature-of-red-supergiants
Description: WEBMar 2, 2021 · The original article by Daisuke Taniguchi and team is called Effective temperatures of red supergiants estimated from line-depth ratios of iron lines in the YJ bands, 0.97-1.32 μm but is not available (yet). …
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8. Supergiant temperatures and linear radii from near-infrared
oup.com
Link: https://academic.oup.com/mnras/article/394/4/1925/1201867
Description: WEBApr 8, 2009 · 1 INTRODUCTION. Supergiants are the signposts that call out the extremes of the land of stellar existence in many regards – mass, composition, nucleosynthesis, …
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9. Sensing Suns: Astronomers Accurately Measure the …
scitechdaily.com
Link: https://scitechdaily.com/sensing-suns-astronomers-accurately-measure-the-temperature-of-red-supergiant-stars/
Description: WEBFeb 28, 2021 · For the first time, astronomers developed an accurate method to determine the surface temperatures of red supergiants. Credit: © 2021 Daisuke Taniguchi Despite the fact red supergiants are …
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10. Measuring the temperatures of red giants is actually pretty tricky
phys.org
Link: https://phys.org/news/2021-03-temperatures-red-giants-pretty-tricky.html
Description: WEBMar 15, 2021 · Iron inside the red giants absorbs some of the light emitted by the star at different wavelengths, and the researchers found that by taking the ratio of the strength …