Determine the radius of a neutron star with a mass of 2 solar masses.

Q: Suppose the Sun was part of a binary star system with a period of 15 years and an average separation…

A: Given data Time period ,T=15 years=15×3.154×107 sec Radius, r=10 AU=1.496×1012 m

Q: Two stars are in a binary system. One is known to have a mass of 0.700 solar masses. If the system…

A:

Q: Supernova A is farther away than supernova B. The brightness of supernova A will be ________ than…

A: The brightness of supernova and its distance from the observer are related as

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: The mass-luminosity relation describes the mathematical relationship between luminosity and mass for…

A: L/Lo = (M/Mo )3.5  here the luminosity is to be found in terms of Lo  M = 4Mo

Q: A pulsating variable star with a period of 10 days would be a Cepheid having an absolute magnitude…

A: Pulsating variable star are made by expansion and contractions in the outer layers of any stars. Due…

Q: This star has a mass of 3.3 MSun. What is the main sequence lifetime of this star? You may assume…

A:

Q: A star is observed with a surface temperature of 3,000 K and a luminosity of 100,000 solar…

A: Given , Temperature = 3000 K Solar Luminosity = 100,000  Now , mass and luminosity are related by…

Q: If a star is located at 62.5 pc and has an apparent magnitude of 6 what is it absolute magnitude?

A: The brightness of a star is determined by its composition and distance from the Earth. There are two…

Q: Put the steps of the life cycle of a star in order.

A: Required :  Steps involved in star cycle.

Q: Calculate the luminosity of an 8 solar mass star.

A: The luminosity of a star is the amount of energy that it radiates per second. It can be considered…

Q: What would a dead star of 2.5 solar masses be?

A: In massive stars the density and temperature of the core gain as much amount of heat to fuse the…

Q: The red supergiant star in Orion is called Betelgeuse, and its distance is 130 pc. What is the…

A: Parallax is the defined as the apparent shift in the position of any star (or other object) against…

Q: What is the maximum luminosity for star of 5.76×1010 Msun.

A: In hydrostatic equilibrium, the radiation pressure and gravitational force will balance each other.…

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: A neutron star has a radius of 11.5 km and a mass of about 1.35M Calculate the density of this…

A:

Q: Consider two stars on the main sequence, A and B. Star A has a mass of Мо Star B has a mass of 0.2…

A: Solution attached in the photo

Q: When two stars are in the same star system, they can affect each other’s evolution. Two stars in the…

A: Two stars in the same system might evolve at a different pace, depending on their distances in the…

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: Consider two stars on the main sequence, A and B. Star A has a mass of 9. Мо Star B has a mass of…

A: Solution attached in the photo

Q: Consider an M-dwarf star of mass 0.1M⊙ and luminosity 10−3L⊙. When the star joins the main sequence…

A: Luminosity of the star is defined as the power emitted by the star. Power is simply the energy…

Q: Suppose that a neutron star has a radius of 10 km and a temperature of 1,000,000 K. How luminous is…

A: The luminosity of a star is defined as the total amount of electromagnetic energy released by a star…

Q: What is the mass of a star with a main-sequence lifetime of 4 billion years? 17 X solar masses

A: According to stellar theories & observations the average lifetime of main-sequence stars has…

Q: .

A:

Q: You've just discovered a new X-ray binary, which we will call Hyp-X1 ("Hyp" for hypothetical). The…

A:

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: Calculate the absolute magnitude of a star at a distance of 6 pc with an apparent magnitude of 3.

A: The apparent magnitude and absolute magnitude are two terms used to define the brightness of a star.…

Q: What is the size of a typical white dwarf? Group of answer choices   1.0 solar radii   0.5 solar…

A:

Q: describing the various stages in the life of a 1.0 solar mass star, 0.5 solar mass star, and a 3.0…

A: In this question we have to describe the life of a 0.5, 1.0 and 3.0 solar mass stars.

Q: A star has a distance of 40 pc. What is the parallax of the star?

A: The distance of a star and its parallax are related as,   d=1/p, where, d= distance in parsecs, and…

Q: What would a dead star of 1.1 solar masses be

A: White dwarfs are remnants of dead stars.  White dwarfs are very dense and the mass of a white dwarf…

Q: The main-sequence age of a star of 1M⊙ is about 1010 years. What is the main-sequence age of a star…

A: Answer the following question is

Q: A supernova remnant is now 3.85 pc in radius and is expanding at 3,350 km/s. Approximately how many…

A: