Show that the radius of a neutron star decreases as the number of neutrons increases. Does this make sense? Shouldn’t the radius increase with more neutrons?
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: to what density must the matter of a 20M☉ star be compressed in order for the star to dissapear…
A: Given Data The mass of the matter is:M=20Mo The mass of the sun is:Mo=1.99×1030 kg To find: The…
Q: The temperature of the CMB today is T=2.725 K. Calculate the temperature of the CMB at redshift…
A: Given T = To = 2.725 K z = 2000 Temperature of CMB at redshift 'z' is given by T = To (1+z)
Q: Given a 10 Jy source with an occupying 15'' in the sky, at a distance of 1.1 Mpc, observed at 1.4…
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Q: What is the answer for sub-item (b in the picture) if the radius of the neutron star is 94.881 km? (
A: Given data : Radius of sun , r = 94.881 Km = 94.881×103 m To find : Find average density of sun if…
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: What is the heaviest element likely to be produced in fusion processes in stars?
A: iron is the heaviest element stars can make.
Q: What connection does the Cold War have with neutron stars and black holes?
A: The formation of neutron star and black hole is same way. That is due to supernova. When supernova…
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: What is the maximum kinetic energy of photoelectrons ejected from sodium by the incident radiation…
A: Given that-Wavelength of incident radiation is 450 nmThe photoelectric equation,hf=ϕ+ K.Ehere, ϕ is…
Q: when seeing an object at large distance
A: Given as, Eα1at
Q: Will the Higgs-Boson particle create a black hole and destroy the Earth
A: No, it will not create a black hole and certainly not big enough to destroy the earth.
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: 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: What is the percentage difference mass loss between a Helium nucleus and 4 protons? My math came…
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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: What is the distance in parsec to pulsar 0628-28 using 400 and 600 MHz frequencies? The dispersion…
A: GIven for pulsar 0628-28, dispersion measure DM is 124.5We have to determine distance in parsec to…
Q: A Type la supernova explodes in a galaxy at a distance of 8.70 x 10' light-years from Earth. If…
A: Given value--- Hubble constant = 68.1 km/s/Mpc . distance of galaxy from Earth = 8.70 × 107 light…
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: What is thought to cause the higher-energy gamma-ray bursts, which do not appear to repeat?
A: Gamma rays are short wavelength electromagnetic spectrum. The gamma-ray photons are the most…
Q: f a star is to eventually form a stellar black hole at any point in its life cycle, what must…
A: a star spends most of its lifetime as a main-sequence star. when it consumes all of its hydrogen…
Q: Contrast the internal structures and properties of neutron stars with white dwarf and main sequence…
A: To explain: 1) Process which balances the inward pull in white dwarf and neutron star 2) Estimating…
Q: How does a gravitational red-shift differ from a Doppler red shift?
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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: Calculate the Eddington limit for star of 10³0 Msun.
A: In a star, the radiation pressure is constantly pushing away matter while gravity is pulling it in.…
Q: Convert the average mass density in gm/cm-3 of a M = 0.5 Msun R = 0.015 Rsun white dwarf to the…
A: Given that For white dwarf star given that M = 0.5 Msun R = 0.015 Rsun We know that mass of sun…
Q: How can forces be unified?
A: According to the Big Bang Theory, a single force existed at the beginning of time. As the Universe…
Q: The hypervelocity star S5HVS1 has a redshifted Hβ line (rest wavelength of 486.135 nm) observed at…
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Q: when we on Earth see a pulsar, why does it seem to blink on and off?
A: Most nucleon stars square measure ascertained as pulsars. Pulsars square measure rotating nucleon…
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: Calculate the deflection of light caused by the gravity of a star of mass 8M sun and radius 4Rsun.
A: The general theory of relativity suggests that the spacetime around a large gravitational source…
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: What phenomena can neutron stars supports?
A: Neutron stars are incompletely upheld against additional breakdown by neutron decadence pressure, a…
Q: What is the most fascinating feature of the standard model
A: The Standard Model of particle physics is a hypothesis that classifies all known constituent…
Q: If Betelgeuse is a M2 type star, what is the approximate temperature of the star in K?
A: Introduction - It is a supergiant star and the distance of this star from the sun is approximately…
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: A star collapses onto a neutron star. If its original radius is 7x105 km, by what factor will its…
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Q: Why would a neutron star have such a strong magnetic field?
A: Neutron star is basically consists of about 80% of neutrons, 10% of electrons and 10% of protons.…
Q: If the gravitational attraction is important in a neutron star where the neutrons are close…
A: Here, we look at the reason why gravitational force is strong in a neutron star but not in a…
Q: Chart the evolutionary process of a high mass star on the H–R diagram from ZAMS to death.
A: Required to draw: The evolution of high mass stars from Zero Age Main Sequence (ZAMS) to Death: We…
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):…
Show that the radius of a neutron star decreases as the number of neutrons increases. Does this make sense? Shouldn’t the radius increase with more neutrons?
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- What keeps a neutron star from collapsing into a black hole?In a neutron star, the core is: Group of answer choices primarily iron and silicon. no longer rotating. made of compressed neutrons in contact with each other. constantly expanding and contracting. electrons and protons packed so tightly they are in contact.If a neutron star has a radius of 10 km and rotates 716 times a second, what is the speed of the surface at the neutron star's equator as a fraction of the speed of light?
- Suppose black holes radiate their mass away and the lifetime of a black hole created by a supernova is about 1067 years. How does this lifetime compare with the accepted age of the universe? Is it surprising that we do not observe the predicted characteristic radiation?What happens on the surface of a neutron star to produce bursts of X rays?If neutron stars are hot, why aren't they very luminous?
- Why is there an upper limit to the mass of neutron stars?Why the Neutron stars do not collapse further?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 evidence can you cite that pulsars are neutron stars?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.2) How does the mean density of a 1.5 Mo neutron star compare to a carbon nucleus? Assume the carbon nucleus has a radius r=3 x 10–15 m.