What are the two possibilities for the final state of a close, massive binary system?
Q: In a binary star system, the average separation between the stars is 4.0 AU, and their orbital…
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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: 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: What are the approximate spectral type, temperature, absolute magnitude number, and luminosity of…
A: Required : Spectral type, absolute magnitude, temperature and luminosity of star E.
Q: where do hydrogen-buring stars spend most of their time on the H-R Diagram? Is it the main sequence,…
A: Hydrogen burning stars are those stars which burns hydrogen as their dominant fuel. Horizontal…
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 two stars orbit in a such a way that the big star is 4 AU from the center of the mass and the…
A: Given:distance of larger star from COM, ra = 4 AUdistance of smaller star from COM, rb = 12 AUtotal…
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: How is the turnoff point on the H-R diagram of a cluster related to the cluster’s age?
A: Given:- The turnoff point on the H-R diagram of a cluster related to the cluster’s age Explain:- How…
Q: How is the shape of a black hole, the material around it, and the release of high-powered jets…
A: Question : How is the shape of a black hole, the material around it, and the release of…
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: 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: Consider two different clusters with approximately the same turnoff luminosity. Cluster A has a main…
A: Given two clusters A and B on the H-R diagram (which is a plot between the luminosity and…
Q: a) What is a binary star system? (b) describe briefly two methods for showing that a system is a…
A: (a) A binary star system is a system of two stars orbiting each other around a common center. Binary…
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: Globular clusters contain no stars more massive than the Sun. Which of the following seems like the…
A: First, we are aware that no stars more massive than the Sun can be found in globular clusters. Any…
Q: What is the total mass of a visual binary system if the average separation of the stars is 8 AU and…
A: A binary system is formed when two astronomical objects come close enough to start orbiting each…
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: We learned in class that, when stars collapse under their own gravity, they conserve angular…
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Q: The luminosity of a Seyfert galaxy nucleus varies in a time-scale of 6 days. What could be the…
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Q: How large is our supermassive black hole in terms of the size of the Earth’s orbit? (Divide the…
A: The Schwarzschild equation for the radius of the event horizon around a black hole is given by the…
Q: why are Cepheid variable stars good distance indicators? What about supernovae?
A: Named after delta-Cephei, Cepheid Variables are the most important type of variable because it has…
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: 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: 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…
Q: Arrange these statements in order according to the Nebular theory 1. X Heating interstellar cloud…
A: Answer is 1.Nearby cataclysmic explosion of supernova occurred 2. Interstellar cloud…
Q: 50,000 20,000 Surface Temperature (C) Would the surface temperature of the stars classified as white…
A: Surface temperature of white dwarfs is around 20000K And for giant it is 2500 to 4000K
Q: A star orbiting Sagittarius A* is orbiting 970 AU from a 4 million MSun object. How fast (in km/s)…
A: The centripetal force is the force that keeps the planet or the star revolving around a central…
Q: Given two stars in a binary star a total distance of 16 AU apart and an orbital period of 4 years…
A: Two Masses in the universe attract each other by a gravitational force. This force is directly…
Q: If an X-ray binary consists of a 10-solar-mass star and a neutron star orbiting each other every…
A: from the equation relating the period of orbit P and the semi-major axis of orbit a, we have…
Q: Finally estimate the lifetime of an M0 spectral type star if the total mass of the star is M =…
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Q: A distant Nebula is now 2.35 pc in radius and is expanding at 1100 km/s. Approximately when did the…
A: The rate of expansion of the Nebula is given by the formula,…
Q: According to the unified model of active galactic nuclei, a ___________________ is observed if the…
A: Supernova and hypernova are not galaxies.
Q: Question. Consider a spherical giant molecular cloud, of mass 2e30 kg and radius 3.09e16 m. What is…
A: Given: The mass of the giant cloud is M = 2 x 1030 kg The radius of the giant cloud is R = 3.09 x…
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…
Q: How do the spectra of H II regions differ from the spectra of reflection nebulae? Why?
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Q: If an X-ray binary consists of a 16 solar mass star and a neutron Star orbiting each other every…
A: Kepler’s third law for binary stars
Q: An equal-mass binary star system (M₁ = M₂) has an orbital period of 6 months and a semimajor axis of…
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Q: Why are Cepheid variables important? O Cepheids variables are pulsating stars whose pulsation…
A: Cepheid stars: These kinds of stars have the property to compress and expand within a short time…
Q: Part 2 of 2 Use the small angle formula to calculate the linear diameter of the globular cluster.…
A: Given angular diameter = 20 arc minutes
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