A 2MO core of a star contracts after using its nuclear fuels. Explain why we can be sure that the star will no become a white dwarf.
Q: Why does a type Ia supernova explode? in two sentences.
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Q: Choose the correct statements from the following list referring to white dwarfs. (Give ALL correct…
A: Answer: A,B,D,E,F Summary: Star collapses inward on itself after running out of the fuel. White…
Q: Consider a close binary system composed of a white dwarf, a giant star, and an accretion disk. Which…
A: Given Data: Let us consider the given closed binary system composed of a white dwarf , a giant star…
Q: Two stars are in a closely orbiting binary system. The smaller star (a K-type main sequence star)…
A: The correct option. Following the mass transfer, which of the following is now true of the main…
Q: What provides the main support against the inward force of gravity in a main sequence star? What…
A: A white dwarf is very dense star. Its mass is comparable to the mass of the Sun while it size is…
Q: Explain what happens during a supernova, what features it produces, and the process of…
A: Hwy dear have a look
Q: If a neutron star has a radius of 9.12 km and a temperature of 3.63 x 106 K, how luminous is it in…
A: 1)Using stefan's lawP = σ A T4Where P is the power σ is the stefan's constant A is the area of…
Q: Trappist 1 a small red dwarf (M*=0.089) with R*=0.12, L*=0.000553 and T=2566. What in AU's is the…
A: The Stefan-Boltzmann law states that the luminosity of the star:L=4πR2σT4………(1)where,R is the radius…
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: If a 1.40 Msun neutron star has a radius of 10 km, what is the density (in kg/cm³) of a 1.52 Msun…
A: Consider the neutron star is in a perfect sphere. The expression to solve for the density of the…
Q: A supernova occurs 140,000 light years from Earth, where a neutron star of mass 1.6 solar masses and…
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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: 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: With a 14 solar mass star example. Describe how its position on an H-R diagram will change as it…
A: A star with 14 solar masses is categorized as a B1 type star. When a significant amount of the…
Q: A G0 III star with a mass of about 1 M⊙ sits on the horizontal branch. Horizontal branch stars are…
A: Given information: The mass of the star (M) = 1 M⊙ The luminosity of the star (L) = 100 L⊙ The…
Q: 1. The neutrino flux from SN 1987A was estimated to be 1.3 x 1014 m-2 at the location of Earth. If…
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Q: White dwarfs have a temperature of 100×103 K. Calculate the maximum wavelength of a White dwarf.
A: A white dwarf is a stellar core remnant that is highly dense and made of electron-degenerate matter.…
Q: The stars in a binary system are a 4 MO main sequence star and a 1 MO red giant. Explain why this…
A: A binary star system is formed when two stars come close enough to form an orbit around its…
Q: 8) Calculate the luminosity of a star that has a radius of 3Rs and a temperature of 2Tsum-
A: The luminosity of a star or a galaxy is defined as the energy radiated by the star or galaxy.…
Q: 3. a) Explain how it is possible for the core of a red giant to contract at the same time that its…
A: a) The core of a red giant contracts due to depleted fuel, while nuclear fusion in surrounding…
Q: A Type la supernova is observed and achieves an apparent magnitude of m 19.89 at peak brightness.…
A: Given Apparent magnitude, m=19.89 Absolute magnitude, M=-19 We know, m-M=5log(d10) where d is the…
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: C and D
A: The luminosity of sun is known. This is the energy released per second. We then find the number of…
Q: Matter accreting onto a white dwarf is generating 1025 W of thermal X-ray emission. What is the…
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Q: C and D
A: We are given the luminosity of sun. This is the energy released per second by sun. We know that 4…
Q: We learned in class that, when stars collapse under their own gravity, they conserve angular…
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Q: Two stars are in a binary system. One is known to have a mass of 0.700 solar masses. If the system…
A: We know that-1 Solar mass=1.988×1030 kgMass of star 1, m1= 0.7×1.938×1030= 1.3916×1030 kgMass of…
Q: Consideration of the total energy in a radio lobe of an AGN implies that the energy is distributed…
A: Explanation -: The scaling of the magnetic field with observed luminosity (Las) in the…
Q: 7. Let's characterize a typical neutron star. (a) Compute its luminosity in units of the solar…
A: The neutron star has a surface temperature of 106 K and a radius of 7 km One solar luminosity is…
Q: Indicate whether the following statements are true or false. (Select T-True, F-False. If the…
A: Indicate whether the following statements are true or false A) White dwarfs are small dense objects…
Q: Which statement is most logical? a Once gravity overcomes thermal pressure, nebulae cloud turns…
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Q: 3. Calculate the radius of a 12,000 K white dwarf with a luminosity of 0.0004 solar luminosities.…
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Q: Describe the spectra for a spectroscopic binary for a system comprised of an F-type and L-type star.…
A: Given Describe the spectra for a spectroscopic binary for a system comprised of an F-type and L-type…
Q: What keeps a neutron star from collapsing? a. the thermal pressure resulting from nuclear fusion in…
A: What keeps a neutron star from collapsing?Choose the correct option.
Q: What do these three nebulae have in common? NOTE: There are multiple correct answers. Select all…
A: (1) As we know that Nebulae are made of dust and gases mostly hydrogen and helium. (2) The dust and…
Q: D5
A: Given that:-Luminosity, L=78.4×1026 WattRadius, r=1.2×106 km=1.2×106×103 m=1.2×109 mLuminosity,…
Q: Indicate whether the following statements are true or false (Select T-True, F-False. If the first is…
A:
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: The radius of the nebula is about 0.401 light-years. The gas is expanding away from the star at a…
A: Given that, r=0.401 light year1 light year=9.46×1015 mr=0.401×9.46×1015=3.79×1015 mThe particle at…
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