How long will a 7 solar mass balck hole live?
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A: The diameter of planetary nebula is given as, D=4.6 pc. Then, the radius of planetary nebula is…
Q: What do you mean by weakly interacting massive particles, or WIMPs,?
A: Given, Weakly interacting massive particles (WIMP)
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A: Given: Zero Age Main Sequence is beginning point of the main sequence of the star. The radius at…
Q: Calculate the expected life span of a 16 solar mass star
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Q: The Hydra super cluster is at a distance of about 800 MParsec. What is the recessional velocity?
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Q: If a giant molecular cloud is a distance of 27 pc away from Earth and drifts at a speed of 27 km/s…
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Q: Explain why the sky is blue and how that relates to reflection nebulae.
A: Dispersion. Despersion is a phenomena in which when light passes beteen 2 particle it disperses.
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Q: A molecular cloud is 22 pc in diameter and is located 303 pc from Earth. What is its angular size on…
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Q: If a giant molecular floyd is 73 pc in diameter and a shock wave can sweep through it in 9 million…
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Q: A red giant loses a solar mass in 150,000 years via a superwind. After 0.9 million years, it has a…
A: Dear student, as per the Qn-+A guidelines I will answer the first question only. Please, ask the…
Q: Neutron Star Accretion Disk. If the accretion disk around a 2.25-solar-mass neutron star has a…
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Q: Suppose the Hubble constant were not 22 but 12.1 km/s per million light-years. Then what would the…
A: Write the expression for the volume of the sphere. Write the expression for the mass. Here, ρ is…
Q: I'm doing a debate about Kalam cosmological. I need to have an example of something out of nothing…
A: Answer:- Atomic physics, Nuclear Physics, Relativistic Physics , Quantum physics, Thermodynamic and…
Q: We observe a star that is dstar away. How much extinction would there need to be (i.e., what must…
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Q: How does the extreme temperature sensitivity of the CNO cycle affect the structure of stars?
A: As a result of the extreme temperature dependence of CNO burning, those stars that are dominated by…
Q: What is Big Bang theory?
A: Astronomers have given several theories and facts for the galaxies moving away from our galaxy.…
Q: Calculate the approximate lifetime of a 60 solar mass O star (1 million solar luminosities, 50% of…
A: The Lifetime of a Star:- The lifetime of a star is defined by the equation: τs=τo×MMo-2.5…
Q: A red giant loses a solar mass in 250,000 years via a superwind. After 0.8 million years, it has a…
A: The original mass f the red giant is 12.7 MSun.
Q: Interstellar extinction dims starlight by about 1 magnitude per 1000 pc. What fraction of photons…
A: The apparent visual magnitude of star is changed by 1 magnitude, produces a flux ratio of fifth…
Q: Calculate the time required for a 1 solar mass blackhoe to completely radiate its energy.
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Q: 1 There are 200000 AU radius clouds will form a star of 10 solar masses and the 150000 AU radius…
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Q: Both the CNO cycle and the proton–proton chain combine 4 H nuclei to produce 1 He nucleus. Would…
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Q: Why do bigger stars burn out quicker(have a shorter lifespan
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Q: Imagine sensors at the L1 point observe an X4 solar flare and fast moving 'halo' CME. What sort of…
A: Given : To explain the change seen on the energetic protons on the Earth when a solar flare and a…
Q: what is a star? define neclear fusion? how does nuclear fusion keep the star keep burning ?
A: Star : In basic we can say that star is a very large ball of bright glowing hot matter in space, and…
Q: 1.004 1.002 1.000- 0.998 0.996 0.994 0.992 0.990 10 20 30 40 50 t-2458543 [BJD] From the data,…
A: A: Orbital period of the planet can be estimated from the plot. B: The orbital distance of the…
Q: (Astronomy) Orbital Period. What is the orbital period of a bit of matter in an accretion disk…
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Q: We observe a star that is dstar away. How much extinction would there need to be (i.e., what must 7…
A: A star is observed that is at a distance away.We need to find the value of the extinction required…
Q: The average luminosity density of stars in the uni- verse is nL = 2 x 108 Lo Mpc 3. In the presently…
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Q: There are 200000 AU radius clouds will form a star of 10 solar masses and the 150000 AU radius…
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Q: How long (in years) will a 0.06Msun main sequence star live? (The solar lifetime is 11 billion…
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Q: suppose a planetary nebula is 2.8 pc in diameter, and doppler shifts in its spectrum show that the…
A: Given information: The diameter of the nebula (D) = 2.8 pc = 2.8 (3.1×1013 km) = 8.68 ×1013 km The…
Q: A halo CME is observed moving away from the Sun. Should we expect this CME to impact Earth?…
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Q: Can i get help with this three questions about solar masses : 1.What is the significance of 8 solar…
A: 1.When a star's mass exceeds 8 solar masses, it must undergo a ferocious type II supernova core…
Q: 1. The Oort cloud is a cloud of dirty icebergs surrounding the solar system. The Oort cloud has a…
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Q: planetary nebula expands at 38 km/s. How far will it expand (in km) in 3 million years?
A: Here given nebula is expanding with given speed. As in 1 sec nebula expands 38 Km, In 3 million…
Q: A planetary nebula expands at 32 km/s. How far will it expand (in km) in 0.6 million years?
A: Expansion rate of the Nebula: It can be defined as the distance up to which the nebula expands in a…
Q: a)What is a neutron star? B)How are they formed? C)Will our Sun become a neutron star? Why or why…
A: a) A neutron star is a core which is formed from the collapsed super giant stars which had a total…
Q: What has happened to the CMBR since the Big Bang?
A: Before the big bang, the universe's temperature was very high compared to the present scenario.…
Q: II. You have been hired as a space weather forecaster. At 11:30:00 UT on your first day, November…
A: The distance from earth to sun is = 149.6 x 106 km
Q: What is Hawking radiation ?
A: It is named after the great scientist Stephen Hawking. He combined quantum physics and the general…
Q: Assume that the umber density of stars in the Milky Way is 0.14 pc-3. There are 10" stars uniformly…
A: Concept: Consider d be the minimum distance of the supernova and the earth to survive in the earth.…
Q: (Astronomy) Supernova Ejection Times. Observations show that the gas ejected from SN 1987A is…
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