Why is there an upper limit to the mass of neutron stars?
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: Although neutron star mergers have been observed, what is the source of most of the gravity waves…
A: Gravitational waves can be generated by many different events such as the merger of Binary Neutron…
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: 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: In binary star systems where a main-sequence star is transferring mass to a white dwarf star, which…
A: Required : The correct option
Q: Describe the evolution of a very low mass start a red dwarf, birth to death
A: Answer Low mass stars in their dating stages shed their outer layers transfer most of their mass…
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: 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: 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: How many neutrons are in a 2.8-solar-mass neutron star? Assume the star’s mass is entirely neutrons…
A:
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 haven't we detected any Primordial black holes?
A: Primordial black holes or PBH are black holes that formed soon after the birth of the universe. The…
Q: Assume a neutron star has a mass of about 1.2 times the mass of the Sun and a radius of 7…
A: Given: Mass of neutron star = 1.2 times mass of sun. Radius of neutron star = 7 km. Diameter of…
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: A neutron star has a radius of 11.5 km and a mass of about 1.35M Calculate the density of this…
A:
Q: If you weigh 675 N on the earth, what would be your weight on the surface of a neutron star that has…
A: weight = 675 N msun = 1.99 x 1030 kg G = 6.67×10−11 N⋅m2 /kg2 g = 9.8 m/s2 d=23.0 km r = 11.5 km =…
Q: In a nova, why is the shell of hydrogen on the white dwarf consumed explosively rather than…
A: White stars are formed when stars that do not have enough mass to form neutron stars or black holes…
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: Pulsating variable stars are normal stars experiencing brief period instability lasting only a few…
A: A variable star is a star whose brightness as seen from Earth (its apparent magnitude) fluctuates.
Q: Most stars exist as a binary system fission reactor quasar…
A:
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: 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: 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: Type 1a supernovae are not: The result of exceeding the Chandrasehkar limit. Produced…
A: Required :: Type 1a supernovae are not:
Q: If a neutron star has a radius of 15 km and rotates 748 times a second, what is the speed of the…
A:
Q: A star collapses onto a neutron star. If its original radius is 7x105 km, by what factor will its…
A:
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: Suppose the 50 turn coil in the figure below lies in the plane of the page and originally has an…
A:
Q: Suppose a quasar is shining with a luminosity L. What is the approximate minimal mass of the black…
A: Solution: Given A quasar is shining with a luminosity L L = 1×1012 LSun We have to determine…
Q: What is the Eddington luminosity of a quasar with a mass of 1 billion Msun ?
A: Eddington luminosity or Eddington limit is the maximum luminosity that can be achieved by a star in…
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: How does a white dwarf differ from a neutron star? (Select all that apply.) A white dwarf is less…
A:
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…
Step by step
Solved in 3 steps
- Suppose that a neutron star has a radius of 13 km and a temperature of 7,000,000 K. How luminous is it?If neutron stars are hot, why aren't they very luminous?Assume that the mass of the core of a star that just went Supernova type II is $2.5 \mathrm{M}_{\odot}$ before and after the collapse, while the Radius changes from $10^3 \mathrm{~km}$, before the collapse, to 12 km , after the collapse respectively.(a) What is the change in potential energy of the core between the two stages before and after the collapse?(b) Knowing that the luminosity of the Sun is $4 \times 10^{26} \mathrm{~W}$ how many years would it take the Sun to release the same amount of energy?
- (Astronomy) PSR1913+16 Problem I. Are the two stars in PSR 1913+16 pulsars, neutron stars, or a combination of the two?How many neutron stars are estimated to be in the Milky Way galaxy? 10 2000 30,000 100 million 100 billionDescribe each of the following in detail, indicating their respective origins and the differences between them: Nova, Supernova type 1, Supernova type II.
- 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.RR Lyrae stars have essentially the same luminosity curve, with periods of up to 1 day. False True 47If 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/s