Suppose that a neutron star has a radius of 10 km and a temperature of 1,000,000 K. How luminous is it?
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A: L/Lo = (M/Mo )3.5 here the luminosity is to be found in terms of Lo M = 4Mo
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A: Spectral type A has wavelength ranging from 290-390 nm. They have very strong hydrogen lines.
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Q: The density of Sirius B is 2×106 g/cm3 and its mass is 1.95×1030 kg. What is the radius of the white…
A: The given data are: ρ=2×106 g/cm3=2×109 kg/m3m=1.95×1030 kg Here, ρ and m represent the density and…
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A: Solution attached in the photo
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Q: A newly discovered bright star has a luminosity of 78.4×1026 W. What is its temperature if it has a…
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Q: .
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Q: White Dwarf Size II. The white dwarf, Sirius B, contains 0.98 solar mass, and its density is about 2…
A: It is given that, M=0.98 solar mass=0.98×1.989×1030 kg=1.95×1030 kgρ=2×106 g/cm3=2×106×103…
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A: In this question we have to describe the life of a 0.5, 1.0 and 3.0 solar mass stars.
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A: The statement that is true among the options provided is:"A smaller diameter star can never have a…
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A: Given: Tstar = 9600 KRstar =2.2 RsunTsun=5778 KMstar = 3.3 Msun
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Q: Suppose a star has a luminosity of 7.0x1026 watts and an apparent brightness of 4.0x10-12 watt/m?.…
A: Given: The luminosity is 7x1026 W. The apparent brightness is 4x10-12 W/m2.
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: If a neutron star has a radius of 13 km and a temperature of 9.0 x 10° K, how luminous is it?…
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Q: will take a moment to compare how brightly a white dwarf star shines compared to a red giant star.…
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