What is advection dominated accretion flow in balck holes?
Q: If you stood on Earth during its formation, during which it captured about 2.1 x 1011 particles per…
A: Given, N=2.1×1011 s-1A=260m2Re=6378 km
Q: What would most bright nebulae look like if there were no interstellar dust?
A: A nebula is defined as a large region of interstellar clouds made of dust, hydrogen, helium, and…
Q: What is the wavelength shift (delta) (h) of a exoplanetery system at a wavelength of X angstroms if…
A: The Doppler shift is a change in frequency or wavelength of a wave in relation to an observer who is…
Q: How does a contracting protostar convert gravitational energy into thermal energy?
A: Stars are formed from clouds of gas present in the interstellar medium. Since the temperature is low…
Q: Explain what makes the planetary nebula glow and what makes the supernova remnant glow. Which of…
A: Planetary nebulae and supernova remnants are both glowing celestial objects in space, but they are…
Q: If Earth-based telescopes can resolve angles down to 0.25 arcsec, how large could a trans-Neptunian…
A:
Q: If Sirius were moved 10x further away what would happen to its: parallax, surface temperature,…
A: **As per our company guidelines we are supposed to solve only one question (if there are multiple…
Q: Suppose you gathered a ball of interstellar gas that was equal to the size of the Earth (a radius of…
A:
Q: Le Trifid Nebula.
A: SOL.The reason is the difference in wavelengths captured by each type of imaging.Explanation:The two…
Q: Why do astronomers refer to carbonaceous chondrites as unmodified or "primitive" material?
A: Chondrites or stony meteorites are the most common types of meteorites in a meteorite fall. Roughly…
Q: Find the total Av required for a Hohmann transfer from Earth to each of the other planets, including…
A:
Q: What is the Roche limit, and what does it have to do with planetary rings?
A:
Q: accoeding to the solar nebula thoery, why is earths orbir nearly in the plane of the suns equator.
A: According to solar nebula theory, the Sun and all planets in our solar system had formed from a…
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: If our Sun were surrounded by a cloud of gas, would this cloud be an emission nebula? Why or why…
A: Emission nebulae are formed in regions surrounding young stars. When a star is formed in the…
Q: The dimensions of the large cumulonimbus cloud pictured areroughly 12 kilometers high, 8 kilometers…
A: Given: The height is 12 kilometers. The length is 8 kilometers. The width is 8…
Q: A halo CME is observed moving away from the Sun. Should we expect this CME to impact Earth?…
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Q: What produced the helium present in Jupiters atmosphere and inside Sun's core ?
A: When the universe was created in Big Bang the temperature was very high. Once the temperature cooled…
Q: describe in detail why and in what situation you use mgh=1/2kx^2, and the question (why it is…
A: mgh = (1/2) kx2 where m is the mass g is the acceleration due to gravity h is the maximum height k…
Q: AL
A: Here given that neptune -sized masses.
Q: (Astronomy) Supernova Ejection Times. Observations show that the gas ejected from SN 1987A is…
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Q: (a) Calculate the time necessary for Kepler shear to spread rings with the following parameters over…
A: (a)Width 1 km, orbit 80 000 km from Saturn. (b)Width 100 km, orbit 80 000 km from Saturn. (c)Width…
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- The transit method is used to detected exoplanets by measuring the reduced starlight caused by the planet passing in front of its host star. Say you measure multiple transits of the same exoplanet. What does the time in between the transits represent? Group of answer choices - Orbital period - Semi-major axis - Ecentricity - Planet's massNeeds Complete typed solution with 100 % accuracy.For the following light curve, which of the answers best illustrates the orientation of the exoplanet and its host star during the dip at Time 3? Light curve Time 1 Time 2 Time 3 Time 4 Choose one: А. O C. D. Intensity B.