If a contracting protostar is five times the radius of the sun and has a temperature of only 2000 K, how luminous will it be?
Q: At what wavelengths do stars of surface temperates 20 000 K, 10 000 K, and 3000 K have their peak…
A: Given temperatures as below :- Temperature (T) = 20000 K. Temperature (T) = 10000 K. Temperature (T)…
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Q: If a contracting protostar is seven times the radius of the Sun and has a temperature of only 2030…
A: The luminosity (L) of the contracting protostar relative to the sun be defined as, LL⊙=RR⊙2TT⊙4…
Q: d²p GMp %3D dt2 (a² + p2)3/2* 2. Suppose that p < a, that is, the star is deep inside the cluster.…
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A: Immediate Assistance : You cannot wait for help if you require quick aid. Because it also implies…
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A: Required : What are planetary nebula associated with.
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A: Required : Spectral type, absolute magnitude, temperature and luminosity of star E.
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A: Hydrogen burning stars are those stars which burns hydrogen as their dominant fuel. Horizontal…
Q: What critical event must occur in order for a protostar to become a star?
A: A very young star that is yet gathering mass from the parent molecular cloud is called a protostar.…
Q: If a contracting protostar is three times the radius of the Sun and has a temperature of only 3000 K…
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Q: Suppose a protostar has a luminosity of 157,341 Lo and a surface temperature of 4,540 K (Kelvins).…
A: Given: Luminoscity of protostar, 157341 LS Surface temperature of protostar, 4540 K Surface…
Q: If the Sun expanded to a radius 10 times its current size and its temperature decreased by 55%, how…
A: Given Radius of sun increased by 10 times Temp decreased buy 55% Tf = 0.45 Ti
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A: Given two clusters A and B on the H-R diagram (which is a plot between the luminosity and…
Q: At what wavelengths do stars of surface temperates 20 000 K, 10 000 K, and 3000 K have their peak…
A:
Q: What is the free-fall time of a 10 MSun main-sequence star? O 100 hours 10 hours O 1 hour O 0.1…
A: The problem is based upon free fall of a star. Here the given star is having the mass 10 times the…
Q: If a contracting protostar is eight times the radius of the Sun and has a temperature of only 2190…
A: The relation between the radius and luminosity of two stars is as follows: LLSun=RRSun2TTSun4…
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A: Given:ρsun=1.4g/cm3ρstar=ρsunxRsunRstar3volume of sphere =4/3πr3to find:ρsun when Rsun=50 times…
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A: Concept: "The Wien's displacement law states that the wavelength carrying maximum energy is…
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A: A Globular cluster is a cluster of old stars, only a few years younger than the Universe itself…
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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: If the Sun expanded to a radius 160 times its current size and its temperature decreased by 55%, how…
A: SOlution: Given that Rnew = 160R Tnew = (1-0.55)T Tnew = (0.45)T
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A: The energy radiated by a star per second is known as its luminosity and is directly proportional to…
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A: As we know that the unit growth rate is equal to M⊙yr Here, M⊙ is the mass of the sun and we have…
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A: Interstellar medium is the medium between matter and radiation. The matter are gases (gas cloud),…
Q: What are the on the axes of a Hertzsprung-Russell diagram? (b) Name one thing you can tell about a…
A: Hertzsprung-Russell Diagram plots the temperature of the start against their luminosity (or) colour…
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A: In the H-R diagram we see that stellar masses decrease downward along the main sequence. At the…
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A: It is required to describe how we can get an idea about the life cycle of a star.
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: What is the relationship between the color of a reflection nebula and the color of the star that…
A: A nebula is a collection of cosmic dust, hydrogen, and other molecular clouds. They act as a region…
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