D Question 9 Which of the following stages of stellar evolution creates and ejected balloon of material called a planetary nebula? Hydrogen Fusion O Multiple Shell Fusion
Q: Which of the following is least reasonable regarding novae and supernovae? Group of answer choices…
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Q: bsorption lines produced by interstellar gas a. are wider than the lines from stars because the…
A: Introduction: The gas between stars is mostly hydrogen and helium scattered at varying densities…
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A: Our Galaxy is pervaded by a diffuse mixture of gas and dust that occasionally becomes denser,…
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A: White dwarf is one of forms of a star in its life span. Whenever a star exhaust of its fuel, it…
Q: What is a neutron star? Group of answer choices A neutral star A compact star composed mainly of…
A: The problem is based on the concept of the neutron star. It is a celestial object of a very small…
Q: 3) indicate which locations in the H-R diagram correspond to places where the evolution is slow.…
A: Using the H-R diagram shown the places where the evoultion has been slow is identified.
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A: If a stellar remnant is in between 0.4 and 1.4 solar masses, the resulting object will be a white…
Q: A star is observed with a surface temperature of 3,000 K and a luminosity of 100,000 solar…
A: Given , Temperature = 3000 K Solar Luminosity = 100,000 Now , mass and luminosity are related by…
Q: Which of the following statements about Supernova 1987A is FALSE? a. it exploded relatively close…
A: Supernova is a cosmological event. When a star reaches to its end time of it's life, then it gets…
Q: A group of graduate students, bored during a cloudy night at a the observatory, begin to make bets…
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Q: What are the approximate spectral type, temperature, absolute magnitude number, and luminosity of…
A: Required : Spectral type, absolute magnitude, temperature and luminosity of star E.
Q: For a main sequence star with luminosity L, how many kilograms of hydrogen is being converted into…
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Q: The period–luminosity relation is useful in determining a. the mass of a star for which the…
A: Period-luminosity relation :- According to this…
Q: The Messier Catalog is a. a listing of all the stars within the Local Bubble b. a list of all the…
A: The Messier catalog is a list of 110 commonly found objects in the night sky that can be easily…
Q: The gas and dust cocoon surrounding young stars a. is blown away when the young stellar surface…
A: In the initial stage of star formation i.e protostar phase the young star is surrounded by dust and…
Q: What kind of star is most likely to become a white-dwarf supernova? A. a star like our Sun B. a…
A: There are gas and dust particles in outer space when their mass increases they will start attracting…
Q: Which of the following is least reasonable regarding the mass of stars? Group of answer choices…
A: Stars are of different sizes and they have their own set of characteristics based on multiple…
Q: Brown dwarfs are ____. a. stars with a very thick dust sphere around them, so they appear “brown”…
A: Required : Correct option.
Q: Of the following types of stars, the one that has never been and can never be a giant star is a a.…
A: a. Red dwarf stars
Q: The average density of the sun is 1. 4 g/cm3 What do you expect the density to be at 0.25 of Rsun?…
A: Given: The average density of the sun is ρs = 1.4 g/cm3 The radius of the sun is R = 6.9634 x 105 km…
Q: A turnoff point corresponding to the oldest star cluster would occur at what spectral…
A: Turnoff point in HR diagram is the point where the star leaves the main sequence branch
Q: Globular clusters contain no stars more massive than the Sun. Which of the following seems like the…
A: First, we are aware that no stars more massive than the Sun can be found in globular clusters. Any…
Q: Once carbon builds up in the Sun's core, astronomers expect our Sun to first become a red giant,…
A: Our sun is an average mass star in the main sequence. The life cycle of average main sequence star…
Q: What is the free-fall time of a 10 MSun main-sequence star? O 100 hours 10 hours O 1 hour O 0.1…
A: The problem is based upon free fall of a star. Here the given star is having the mass 10 times the…
Q: 2GM What is the escape velocity (in km/s) from the surface of a 1.1 Mo neutron star? From a 3.0 M.…
A: Escape velocity is the speed that is sufficient for a body to escape from a gravitational center of…
Q: 1. A planetary nebula has an angular diameter of 76 arc seconds and a distance of 5100 ly. What is…
A: 1.Small angle Formula:D=αd2.06×105where, D is the linear diameterα is the angular diameter=76 arc…
Q: When a mass is transferred through the inner Lagrangian point in a binary system toward a white…
A: Option A is correct answer
Q: You discover a binary star system in which one member is a 15 solar-mass main-sequence star and the…
A: Required : The correct option.
Q: Stars found on the main sequence of a Hertzsprung-Russell diagram share certain features not shared…
A: The correct answer is:(e) Stars on the main sequence of a Hertzsprung-Russell diagram all generate…
Q: Based on what you know about main-sequence stars, select all of the correct statements from the…
A: Required : Correct statements .
Q: A turnoff point corresponding to the youngest star cluster would occur at what spectral…
A: The turnoff point of a star is the point where it leaves the main sequence of the HR diagram after…
Q: How high or low a star is on the main sequence is dictated primarily by ... Select one: A. its…
A: Answer: A high or low a star is on the main sequence is dictated primarily is discussed below:
Q: Select all of the statements about the main sequence stage in the life of a star that are TRUE:…
A: The statements about the main sequence stage in the life of a star that are TRUE: All stars spend…
Q: The sun will eventually cease fusing nuclei in it interior and will then be dead what general term…
A: When the fusion in the core of sun ceases but still illumines due to helium carbon transformation,…
Q: Based on what you learned about stellar evolution, select all of the correct statements from the…
A: 1. Correct: From the studies, it has been found that the period of some Cepheid variables actually…
Q: Assume that when a certain main sequence star becomes a giant gas, its luminosity increases from L…
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Q: he energy in the Sun currently is provided by a process that combines two hydrogen atoms to form one…
A: Option C is the right answer Nuclear fusion.
Q: As a cluster of stars begins to age, which type of star in the cluster will move off the main…
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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: Place the following events in the formation of stars in the proper chronological sequence, with the…
A: The question can be solved as follows
Q: What keeps a neutron star from collapsing? a. the thermal pressure resulting from nuclear fusion in…
A: What keeps a neutron star from collapsing?Choose the correct option.
Q: Stars are born in a. reflection nebulae. b. dense molecular clouds. c. HII regions. d.…
A: Option (B): Dense molecular cloud.
Q: Indicate whether the following statements are true or false (Select T-True, F-False. If the first is…
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Q: Match each statement with the appropriate item (If the first corresponds to B and the next 4 to C,…
A: (1) When a main sequence star runs out of hydrogen fuel, nuclear fusion ceases and the star starts…
Q: he triple-alpha process a. controls the pulsations in Cepheid variable stars. b. is the…
A: Introduction: The triple-alpha process is a set of nuclear fusion reactions by which three helium-4…
Q: List the following 5 terms in order through a stars life cycle (starting with the sun), through the…
A: When a star like the Sun forms, it is hot and glows. This phase is called the red giant phase. After…
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