Why would a neutron star have such a strong magnetic field?
Q: Calculate the gravitational redshift of radiation of wavelength 550 nm (the middle of the visible…
A: The gravitational redshift is given by the formula, z=11-2GMc2r-1 where, G is the gravitational…
Q: Taking the distance to the Crab pulsar to be 2000 pc and the bolometric magnitude at maximum…
A: The Crab Pulsar is described as a young neutron star. The star is the central star in the Crab…
Q: Life on Earth wouldn't be possible without supernovae. Why?
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Q: true or false A supernova core with a mass 2X that of the Sun produces a Black Hole
A: The Sun need to be concerning 20X additional large to finish its life as a black hole. Stars that…
Q: The expanding bubble of hot gas shown in the figure, which has been inflated by the light from a…
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Q: Why is it possible for repeated nova explosions to occur in the same binary system?
A: A binary star system is one in which two stars are bound to each other through gravity. They will…
Q: A nova is an event, not a stellar object. (True or false)
A: It is True. A nova is a transient astronomical event that causes the sudden appearance of a bright,…
Q: Determine the radius of a neutron star with a mass of 2 solar masses.
A: Neutron stars are formed when massive stars die. A star is formed due to the balance between…
Q: If the accretion disk around a neutron star has a radius of 2 × 105 km, what is the orbital velocity…
A: Neutron stars are formed when massive stars collapse under their own gravity. They are very…
Q: How does the presence of degenerate matter in a star trigger the helium flash?
A: As per the Pauli Exclusion Principle not more than two electrons inside an atom can have the same…
Q: e la supernova?
A: To trigger a type la supernova one of the two stars must be a white dwarf . The other star is often…
Q: Explain how supernovae produce neutron stars and pulsars.
A: Neutron stars are city size stellar objects with a mass of about 1.4 times that of the Sun.When…
Q: What would a dead star of 2.5 solar masses be?
A: In massive stars the density and temperature of the core gain as much amount of heat to fuse the…
Q: Why primordial black holes are thought to be extinct?
A: Black holes are formed due to the gravitational collapse of massive stars when the fusion inside the…
Q: What is the escape velocity at the surface of a typical neutron star?
A: In celestial mechanics, the escape velocity is defined as the minimum velocity required by a…
Q: Why do you expect neutron stars to have a powerful magnetic field?
A: Neutron stars are small stellar objects with a mass of about 1.4 solar mass. They are formed when…
Q: How many neutrons are in a 2.8-solar-mass neutron star? Assume the star’s mass is entirely neutrons…
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Q: Determine the surface gravity on a neutron star. Assume the star has a mass 50% bigger than the…
A: mass of Sun = 1.98 * 1030 Kg mass of neutron star = mass of sun + 50%mass of sun = 1.5 * 1.98 *…
Q: Why massive stars are short lived?
A: A massive star has a shorter life spanthan an average star because of fasterhydrogen fuel…
Q: A neutron star has a radius of 11.5 km and a mass of about 1.35M Calculate the density of this…
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Q: Why do you expect neutron stars to have a more powerful magnetic field than a white dwarf?
A: A neutron star consists of ions along with neutrons which are responsible for radiation in the form…
Q: What would your mass be if you were composed entirely of neutron star material of density 3 × 1010…
A: Neutron stars are formed when massive stars die due to gravitational collapse. The gravity will fuse…
Q: Assume that you observe both of these stars in a galaxy 10 million light-years away. How bright is…
A: 1) Distance of both stats from observer, d = 10 million light years d = 10 x 106 ly d = 107 ly 1…
Q: Suppose that a neutron star has a radius of 10 km and a temperature of 1,000,000 K. How luminous is…
A: The luminosity of a star is defined as the total amount of electromagnetic energy released by a star…
Q: Vega has Mv = 0.5. How large is Mbol? Calculate the luminosity of Vega. Remember that Mbolo = 4.75.…
A: Given information": The absolute visible magnitude of Vega (Mv) = 0.5 The Spectral class of Vega is…
Q: Calculate the redshift caused by a neutron star with a radius of 11 km and mass of 5.2 x 1030 kg.
A: As per general relativity when a photon leaves a gravitational well its wavelength will increase…
Q: Why do you expect neutron stars to spin rapidly?
A: Neutron stars are formed when stars with 4 to 8 solar mass die. When such a star runs out of fuel…
Q: Where do the γ bursts come from?
A: Gamma-ray bursts are one of the top unsolved mysteries in astrophysics, alongside such burning…
Q: What is the surface gravity on the surface of White Dwarf of 1 Solar Mass? What about a Neutron Star…
A: Mass of white dwarf = m =1 solar massRadius of White Dwarf = rWDRadius of Neutron star = rNSRadius…
Q: a)What type of supernova is most luminous in light? (b) What kind of star results in such an…
A: a) Supernova is an astronomical event take place when a white dwarf star exploded. When the white…
Q: Why did astronomers conclude that pulsars actually could not be pulsating stars?
A: Pulsars are defined as highly magnetized rotating neutron stars. They are capable of releasing beams…
Q: Why do millisecond pulsars spin so fast?
A: Millisecond Pulsars are formed when accretion of matter takes place from a companion star to an old…
Q: What would a dead star of 1.1 solar masses be
A: White dwarfs are remnants of dead stars. White dwarfs are very dense and the mass of a white dwarf…
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: If a neutron star has a radius of 15 km and rotates 748 times a second, what is the speed of the…
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Q: Why would astronomers naturally assume that the first discovered millisecond pulsar was relatively…
A: When a massive star collapses the gravitational force is so strong the protons and electrons inside…
Q: If a circular accretion disk around a 1.4 M. neutron star has a radius of 8.00 x 10° km as measured…
A: Given data: Mass of the Neutron star is, M= 1.4 Ms Where, Ms - Mass of the sun Therefore, Mass of…
Q: A star collapses onto a neutron star. If its original radius is 7x105 km, by what factor will its…
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Q: All millisecond pulsars are now, or once were, members of b nary star systems. (T/F)
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Q: In a neutron star, the core is: Group of answer choices primarily iron and silicon. no longer…
A: By the data of many theory , the scientist find that the cores of neutron stars with a mass 7/5…
Q: If a neutron star has a radius of 10 km and rotates 716 times a second, what is the speed of the…
A: When a massive star dies the gravitational collapse creates so much force that protons and electrons…
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- If neutron stars are hot, why aren't they very luminous?Why is there an upper limit to the mass of neutron stars?Calculate the gravitational redshift of radiation of wavelength 550 nm that is emitted from a neutron star having a mass of 5.8 x 1030 kg and a radius of 10 km. Assume that the radiation is being detected far from the neutron star.
- What are the main products of the fusion reactions that take place in low mass main sequence stars?If a circular accretion disk around a 1.4 M, neutron star has a radius of 1.00 x 105 km as measured from the center of the neutron star to the edge of the disk, what is the orbital velocity (in km/s) of a gas particle located at its outer edge? (The mass of the Sun is GM 1.99 x 1030 kg. Hint: Use the circular orbit velocity formula, V, = ; make sure to express quantities in units of meters, kilograms, and seconds.) km/sHow can a neutron star in a binary system generate X-rays?