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en.wikipedia.org/wiki/Stellar_evolution

Stellar evolution is the process by which a star changes over the course of time. Depending on the mass of the star, its lifetime can range from a few million .... Slightly more massive stars do expand into red giants, but their helium cores are not ... When a star exhausts the hydrogen in its core, it leaves the main sequence and ...

www.reference.com/science/star-grow-larger-after-exhausts-its-core-hydrogen-a0497a2786f82351

The reason that stars swell in size after exhausting their hydrogen cores is that the stars begin fusing helium, according to the University of Michigan. The helium  ...

astro.swarthmore.edu/astro1/reading/Bennett_Ch17_pt2.pdf

carbon core after the core helium is ... stars grow larger and redder when they exhaust their core hydrogen, and during ... the more massive star (which exhausts its core hydrogen sooner} ... I How does a star's mass affect nuclear. fUSIOfl?

www.brainscape.com/flashcards/chapter-17-homework-14-star-stuff-4552701/packs/6200817

How do the properties of long-lived stars compare to those of short-lived ... Long- lived stars begin their lives with more mass and a larger amount of hydrogen fuel. .... What happens when a main-sequence star exhausts its core hydrogen fuel ... The main source of energy for a star as it grows in size to become a red giant is ...

www.proprofs.com/quiz-school/story.php?title=astronomy-chapter-twelve

Molecular clouds do not have enough material to form such massive stars. B. They would ... Why does a star grow larger after it exhausts its core hydrogen? A.

relativity.liu.edu/steve/teaching/spring09/Chapt13_lecture.pdf

Gravity holds a star together while the pressure of its ... Fusing hydrogen into helium in its core, the Sun will ... shrink and grow hotter as the ... After one billion years, the red ... once again transform into a red giant, but only bigger .... When a main-sequence star exhausts its fuel, the core drops .... Massive stars do not stop.

map.gsfc.nasa.gov/universe/rel_stars.html

Apr 16, 2010 ... After a low mass star like the Sun exhausts the supply of hydrogen in its ... Hydrogen burning continues in a shell around the core and the star evolves into a red giant. When the Sun becomes a red giant, its atmosphere will envelope the ... If the progenitor mass is larger, then the resultant core is so heavy ...

staff.on.br/jlkm/astron2e/AT_MEDIA/CH20/CHAP20AT.HTM

... events that occur after a Sun-like star exhausts the supply of hydrogen in its core. ... part the star does not experience sudden, large-scale changes in its properties. ... becomes larger and more hydrogen-deficient as the star continues to shine. ... The star continues to brighten and grow as it ascends the red-giant branch to ...

www.studystack.com/flashcard-1375929

Which element is the dead end for cores of the most massive stars? ... Why does a star grow larger after it exhausts its core hydrogen? Hydrogen fusion in a shell  ...