In a nova, why is the shell of hydrogen on the white dwarf consumed explosively rather than steadily?
Q: Why does a type Ia supernova explode? in two sentences.
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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: 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: A supernova remnant is now 3.65 pc in radius and is expanding at 4,850 km/s. Approximately how many…
A: Given, Radius of remnant of supernova = 3.65 pc = 1.116×1014km Rate of expanding = 4850 km/s
Q: If an X-ray binary consists of a 17-solar-mass star and a neutron star orbiting each other every…
A: The expression for the Kepler’s third law is as follows: MA+MB=a3p2 1
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: person weigh on the surface of this star?
A: Mass of sun, m Mass of star, M=1.8×m Radius of Sun, r Radius of star, R=0.06×r Given, weight of a…
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: If a circular accretion disk around a 1.4 M neutron Star has a radius of 5.00 x 10^5 km as measured…
A: Orbital velocity
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: 7. If a car was on the highway and was trying to pass another ar and went from a speed of 60 m/s to…
A: Given : vo = 60 m/s v = 75 m/s t = 3 seconds
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: fill in missing word a) One difference between a type I and type II supernova is the formation of…
A: Few sentences are given and we need to fill in the blanks.
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: Q7// a- Estimate the density of a white dwarf if it has a solar mass packed into a sphere with…
A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…
Q: If the accretion disk around a neutron star has a radius of 8 ✕ 105 km, what is the orbital velocity…
A: Given Data: The radius of the neutron star is r = 8 x 105 km. As we know that the mass of the…
Q: What is the luminosity, in solar units, of a brown dwarf whose radius is 0.1 solar radii and whose…
A: Luminosity of a star or an object is the total amount of energy radiated per second by that object.…
Q: a supernova remnant is now 2.95 pc in radius and is expanding at 3,850 km/s. approximately how many…
A: Given information: The radius of the supernova remnant (D) = 2.95 pc = 2.95 (3.1×1013 km) = 9.145…
Q: 2. (a) Find the virial mass of a cluster for which the rms radial velocity dispersion is 5 km/s and…
A: Because of how clusters are prepared, they remain as tiny particles in the course of an experiment…
Q: Given the density of a pulsar, an extremely dense rotating star made of neutrons, is about 1011…
A: The density of a material defines how closely spaced the material has been packed. If the material…
Q: If the accretion disk around a neutron star has a radius of 8 ✕ 105 km, what is the orbital velocity…
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Q: In a Type Ia supernova, the cause of the violent outburst is: 1) the sudden emission of a shell…
A: A supernova is the explosion of a star that happens during the final evolutionary stages of a…
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: The present-day density of the sun is about 1.4 g/cm3. The volume of a sphere is 4/3πr3. The density…
A: Given:ρsun=1.4g/cm3ρstar=ρsunxRsunRstar3volume of sphere =4/3πr3to find:ρsun when Rsun=50 times…
Q: Why don't red dwarfs become giant stars?
A: Red dwarf stars or M-type stars are small stars with a mass of 0.08 to 0.6 times the mass of the…
Q: A 1.8 M neutron and a 0.7 M white dwarf have been found orbiting each other with a period of 28…
A: Kepler’s third law for binary stars
Q: Calculate the Kepler speed grazing the surface of a) a white dwarf, b) a neutron star. Give your…
A: Concept: To determine the Kepler Speed we need to calculate the escape velocity. The Formula to…
Q: We learned in class that, when stars collapse under their own gravity, they conserve angular…
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Q: The exponential drop in the brightness of supernova 1987A was due to the decay of 56Ni (t1/2 = 6.1…
A: Given: The reaction of decay is given as, Ni56t1/2=6.1 days→Co56t1/2=77.1 days→Fe56
Q: A white dwarf in a binary system has a radius of 7000 km and a mass equal (minus an infinitesimal…
A: Step 1:Given:The mass of the white dwarf: m=1.4MsunThe initial radius of the star: R1=7000 kmThe…
Q: supernova remnant is now 4.75 pc in radius and is expanding at 1,600 km/s. Approximately how many…
A: Given 1 pc = 3.1 × 1013 km 1 year = 3.2 × 107 s Radius of supernova remnant = 4.75 × 3.1 × 10 13 km…
Q: What is the difference between type I and type II supernovae
A: To determine Difference between type I and type II supernovae
Q: A supernova remnant is now 3.05 pc in radius and is expanding at 1,100 km/s. Approximately how many…
A: Given, The radius: r=3.05 pc=3.05×3.1 × 1013 km 1 pc =3.1 × 1013 kmor, r=9.455 ×…
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: 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: What is the size of a typical white dwarf? Group of answer choices 1.0 solar radii 0.5 solar…
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Q: Generally speaking, a low-mass star ends up as a white dwarf while a high-mass explodes. Why/How…
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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: If a 1.40 MSun neutron star has a radius of 10.0 km, what is the radius (in km) of a 2.15 MSun…
A: A 1.40 MSun neutron star has a radius of 10.0 km, what is the radius (in km) of a 2.15 MSun neutron…
Q: During the collapse of a supernova explosion, calculate the change in gravitational potential hergy…
A: During explosion of supernova, the gravitational potential energy of the core is lost, hence the…
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 supernova remnant is now 3.85 pc in radius and is expanding at 3,350 km/s. Approximately how many…
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Q: Say that a white dwarf has about the same radius as the earth and about the same mass as the sun.…
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Q: A star collapses onto a neutron star. If its original radius is 7x105 km, by what factor will its…
A:
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