a)What is a neutron star? B)How are they formed? C)Will our Sun become a neutron star? Why or why not?
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a)What is a neutron star? B)How are they formed? C)Will our Sun become a neutron star?
Why or why not?
a)
A neutron star is a core which is formed from the collapsed super giant stars which had a total mass in between 10 and 25 times the solar mass.
A neutron star has approximately 20 km in diameter with huge magnetic field strength. The temperature of the core is around 1012 kelvin.
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- The white dwarf that remains when our Sun dies will be mostly made of A. helium. B. carbon. C. neutrons. D. hydrogen. Is the answer B? Thanks!List the following 5 terms in order through a stars life cycle (starting with the sun), through the remainder of its lifetime: a. Black dwarf b. Planetary nebula c. Red giant d. Star (Sun) e. White dwarfWhy are we unlikely to find Earth-like planets around halo stars in the Galaxy? A. Halo stars formed in a different way from disk stars. B. Planets around stars are known to be extremely rare. C. Halo stars formed in an environment where there were few heavy elements to create rocky planets. D. Halo stars do not have enough mass to hold onto planets. Is the answer C? Since halo stars are formed early when the galaxy consisted of mainly hydrogen and helium, there are no heavier elements available to create Earth-like planets so just halo stars are formed? Thanks!
- The Local Bubble is: a. a region of low density intersteller gas extending several hundred LY around the Sun b. a region around any exploding star where material is expanding from the explosion c. the region around very hot stars where hydrogen is ionizedIf a star is to eventually form a stellar black hole at any point in its life cycle what must happen? A. Gravity must be strong enough to compress all its material to be smaller than its schwartzchild radius B. it must pass by a supermassive black hole and tidal forces will do the rest C. Gravity must expand it so it can over power the nuclear forces that compress it and keep it from exploding by giving off all its heat D. A star will always have the same mass and radius and the only black holes that exist are ones that have existed shortly after the big bang1: Briefly explain what are neutron stars and then estimate the escape velocity of a neutron star.
- Describe each of the following in detail, indicating their respective origins and the differences between them: Nova, Supernova type 1, Supernova type II.(Astronomy) Neutron Star Escape Velocity. What is the escape velocity at the surface of a 2.80-solar-mass neutron star that has a typical radius for this type of star? Express your answer in units of km/s.Which of the following most correctly explains why we have not yet observed any white dwarfs derived from M stars: Group of answer choices Most M stars end up as neutron stars or black holes. The lifetime of M stars is longer than the age of the universe. Most M stars are located near the edge of the universe, beyond the visible horizon. Most M stars are members of a binary system, and the white dwarf would be obscured by the glare of the more massive companion. White dwarfs are too dim to be observed with currently available techniques.
- What is the escape velocity (in km/s) from the surface of a 1.1 M neutron star? From a 3.0 M neutron star?Which of the following is the most reasonable statement regarding a neutron star? Group of answer choices It consists mostly or entirely of neutrinos. The most common component of a neutron star is hydrogen. The star will turn into white dwarf. All its electrons have been combined with protons. It consists of neutrons and protons floating in a sea of electrons.