Q7// a- Estimate the density of a white dwarf if it has a solar mass packed into a sphere with approximately 10² Ro
Q: Why does a type Ia supernova explode? in two sentences.
A:
Q: What is the average density of a neutron star that has the same mass as the sun but a radius of only…
A: Given, Radius of neutron star R= 93.106 km
Q: a. In which cluster(s) would you not expect to find a white dwarf? List all that apply. b. You…
A: for the white dwarf : If the star has a mass less than 1.44 of the sun's mass, it becomes a white…
Q: Effective Temperature (K) 25,000 10,000 -10 6,000 3,000 10 102 A +10- D 10-2 +15 B A 104 M F…
A: The Hertzsprung Russell diagram is used to plot the temperature of stars with their luminosity.…
Q: After a supernova explosion, the remaining core will collapse to form a neutron star if the mass of…
A: After a supernova explosion, the remaining core will collapse to form a neutron star if the mass of…
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: An AGN is emitting with a luminosity of 2×1040W. The AGN's brightness varies by 10% on a time scale…
A: GivenAn AGN is emitting with a luminosity of 2×1040W. The AGN's brightness varies by 10% on a time…
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 is the average density of the neutron star that has the same mass as the sun but a radius of…
A:
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: What is the escape velocity at the surface of a typical neutron star?
A: In celestial mechanics, the escape velocity is defined as the minimum velocity required by a…
Q: The chemical abundance of population I stars a. indicates that they were formed before the…
A: Population I star consist of sun and tend to be hot, young, luminous and focused in the spiral…
Q: If the accretion disk around a neutron star has a radius of 8 ✕ 105 km, what is the orbital velocity…
A: Given Data: The radius of the neutron star is r = 8 x 105 km. As we know that the mass of the…
Q: What is the average density of a neutron star that has the same mass as the sun but a radius of only…
A: Given, mass of sun = mass of neutron star = 1.989 ×1030 kg radius = 84.66 km
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: GM What is the orbital period of a bit of matter in an accretion disk that is located 3 x 105 km…
A: Time period was found to be 526 seconds So answer to fill in blank is 526. Detailed solution is…
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: 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: 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: 1. The neutrino flux from SN 1987A was estimated to be 1.3 x 1014 m-2 at the location of Earth. If…
A:
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: Convert the average mass density in gm/cm-3 of a M = 0.5 Msun R = 0.015 Rsun white dwarf to the…
A: Given that For white dwarf star given that M = 0.5 Msun R = 0.015 Rsun We know that mass of sun…
Q: What stops the production of energy in the evolution of a high mass star?
A: Required: We need to find what stops the production of energy in the evolution of a high mass star.…
Q: A 2MO core of a star contracts after using its nuclear fuels. Explain why we can be sure that the…
A: A white dwarf is the final cycle of stars like our Sun. By the end cycle of stars, they will…
Q: What is the average density of the neutron star that has the same mass as the sun but a radius of…
A: Density is defined as mass per unit volume. Consider the neutron star is spherical in shape having…
Q: 1. A planetary nebula has an angular diameter of 76 arc seconds and a distance of 5100 ly. What is…
A: 1.Small angle Formula:D=αd2.06×105where, D is the linear diameterα is the angular diameter=76 arc…
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: Why don't red dwarfs become giant stars?
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: 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…
A:
Q: The place on the H–R diagram where contracting protostars first become visible is a. the…
A: The place on the H–R diagram where contracting protostars first become visible is the birth line.
Q: Assume a neutron star has a mass of about 1.2 times the mass of the Sun and a radius of 7…
A: Given , massm of neutron star=1.2 x mass of Sun . =1.2 x 1.989x1030 kg…
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: What is the surface gravity on the surface of White Dwarf of 1 Solar Mass? What about a Neutron Star…
A: Mass of white dwarf = m =1 solar massRadius of White Dwarf = rWDRadius of Neutron star = rNSRadius…
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