Why does a star's life expectancy depend on its mass?
Q: All stars start their lives with the same basic composition. What determines their differences? O…
A: Mass they formed with
Q: Life on Earth wouldn't be possible without supernovae. Why?
A:
Q: Why are metals less abundant in older stars than in younger stars?
A: Answer: The metals which basically are non hydrogen and helium material are produced or created in…
Q: of a star occur
A: Possible stages of a star that occurs are as follows:
Q: The mass-luminosity relation describes the mathematical relationship between luminosity and mass for…
A: L/Lo = (M/Mo )3.5 here the luminosity is to be found in terms of Lo M = 4Mo
Q: Determine the mean molecular mass of a star for both the scenario of being completely neutral and…
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Q: How do the temperature and size of a Sun-sized star fluctuate over the course of its life?…
A: Immediate Assistance : You cannot wait for help if you require quick aid. Because it also implies…
Q: Which stars are associated with a planetary nebula? black holes, neutron star's, white dwarf or main…
A: Required : What are planetary nebula associated with.
Q: This star has a mass of 3.3 MSun. What is the main sequence lifetime of this star? You may assume…
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Q: For each type of stellar explosion, identify its progenitor star
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Q: What is the life expectancy (in years of a 19M main-sequence Star? What is the life expectancy (in…
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Q: Calculate the luminosity of an 8 solar mass star.
A: The luminosity of a star is the amount of energy that it radiates per second. It can be considered…
Q: What critical event must occur in order for a protostar to become a star?
A: A very young star that is yet gathering mass from the parent molecular cloud is called a protostar.…
Q: The percentage of helium used immediately during a star’s helium flash phase is
A: It is a very brief phase
Q: Why massive stars are short lived?
A: A massive star has a shorter life spanthan an average star because of fasterhydrogen fuel…
Q: When two stars are in the same star system, they can affect each other’s evolution. Two stars in the…
A: Two stars in the same system might evolve at a different pace, depending on their distances in the…
Q: What causes a star to move off the main sequence?
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Q: If the hottest star in the Carina Nebula has a surface temperature of 51,000 K, at what wavelength…
A: Concept: "The Wien's displacement law states that the wavelength carrying maximum energy is…
Q: .
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Q: Sirius, the brightest star in the sky, is a main sequence star, as is the Sun, but Sirius has a…
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Q: Why does the orbital period of a binary star depend on its mass?
A: A binary system is formed when two massive astronomical objects start orbiting each other around a…
Q: Calculate the absolute magnitude of a star at a distance of 6 pc with an apparent magnitude of 3.
A: The apparent magnitude and absolute magnitude are two terms used to define the brightness of a star.…
Q: What is the life expectancy of a 16-solar-mass star?
A: Stars are formed due to the gravitational collapse of interstellar gases which contain mostly…
Q: Why is it, that a star which uses up the hydrogen in its core, swells to enormous size and changes…
A: Required : Why does a star which uses up the hydrogen swells to enormous size and changes color.
Q: How massive have to be a main-sequence star in order to survive for at least 15 billion years?
A: The objective of this question is to determine the mass of a main-sequence star that would allow it…
Q: Consider the following question: How many times bigger than the sun would a cool star (4000K) have…
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Q: Why do old stars have less metal compared to new ones?
A: As per the Big Bang theory, the universe expanded from an initial high-density state. In the…
Q: The main-sequence age of a star of 1M⊙ is about 1010 years. What is the main-sequence age of a star…
A: Answer the following question is
Q: Sun-like star transitions into a Red Giant __________. Group of answer choices after the planetary…
A: Solution Given dataSun like star transitions into a Red Giant ..........Which option is correct…
Q: Why do stars tend to form in groups?
A: Space is filled with an interstellar medium that consists of gas and dust particles. The density…
Q: Explain why massive stars evolve faster?
A: Stars are formed in the interstellar medium. The interstellar medium contains hydrogen and helium…
Q: Zebulon is a binary star system composed of a 10 M sun main sequence star and a 1 M sun red giant.…
A: Zebulon is a binary star system composed of a 10 M sun main sequence star and a 1 M sun red giant.
Q: the Sun?
A: Given: To explain the star which is white supergiant star also brightest and hottest than the Sun…
Q: mass
A: The evolution is affected by mass exchange in the binary. The higher mass Star use to be the lower…
Q: Consider three main sequence stars: Star A is 14,500 K, Star B is 2,900 K, and Star C is 5,500 K.…
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Q: A main sequence star of mass 25 M⊙has a luminosity of approximately 80,000 L⊙. a. At what rate DOES…
A: Given information: The mass of the star (m) = 25M⊙ The luminosity of the star (L) = 80000L⊙ part a):…
Q: Betelgeuse is a nearby supergiant that will eventually explode into a supernova. Let's see how…
A:
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Solved in 3 steps
- How much energy would be released if a star with a mass of 25 Msun and a radius of 10 Rsun detonates as a supernova explosion in 1 second? (Hint: think about the definition of binding energy). Express your answer in terms of solar luminosities.Describe how energy generated in the core of a 1-solar-mass star gets to the star's surface.Note: The answer should be typed. Asap
- A red giant star has a temperature of 3900 K and a luminosity of 13600 LSun. How many times bigger is this star than the Sun? Hint: You need the surface temperature of the sun for this problem. Use the value in the book, 5800K.A certain star has a temperature twice that of the Sun and a luminosity 64 times greater than the solar value. What is its radius, in solar units?Which statement is most logical? a First stars are thought to have been more massive than Sun because the materials used to make clouds were more abundant at the beginning b First stars are thought to have been more massive than Sun because the temperatures of the clouds that made them were higher because they consisted entirely of hydrogen and helium c First stars are thought to have been more massive than Sun because star-forming clouds were much denser early in time d First stars are thought to have been more massive than Sun because the clouds that made them were much more massive
- The hottest star in the Orion Nebula has a surface temperature of 40,000 K. At what wavelength does it radiate the most energy?What is the mass of a star with a main-sequence lifetime of 6 billion years?Consider two stars on the main sequence, A and B. Star A has a mass of 4 M⊙. Star B has a mass of 0.8 M⊙. By what factor is the luminosity of star A greater than the luminosity of star B?