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: As the amount of light observed from the star rises, what is the exoplanet doing in response?
A: Give: observed's antonyms shattered, transgressed, and violated Things to keep an eye on Many hours…
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: Q. 3: The angular velocity of rotation of a står (of mass M and radius R) at which the matter starts…
A: To find- Angular velocity=? Given- Mass of star=(M) Radius of star=R Matter starts escaping from the…
Q: If you stood on Earth during its formation, during which it captured about 1.4 ✕ 1011 particles per…
A: The rate of capturing particle is, dndt=1.4×1011/sn=dndtS
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 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.
Q: Describe each of the following nebulae and how they can be observed: HIl region Cold hydrogen gas…
A: (1) HII region (2) Cold hydrogen gas (3) Dust clouds
Q: ya 6.3 mya 4.5 mya 1500 km 3 mya
A: To find the rate of spread in the hypothetical hot spot. Total distance is 1500 Kms. The rate of…
Q: Why are the Gas giants farther out in the solar system than the terrestrial(rocky) planets?
A: If we carefully observed in our solar system , solid ( rocky ) bodies are exist generally not gas…
Q: Use this light curve of a star with a transiting exoplanet to answer the following. If the exoplanet…
A: Required to find the average orbital distance.
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: Discuss the origin of aurorae. (Your answer should make reference to the solar wind, the…
A: Required: The origin of aurorae.
Q: what is the smallest planet that could be detected around a 0.4 Rsun M dwarf star?
A: transit depth is the ratio of surface area of planet and the star transit depth = πRp2πRs2 where Rp…
Q: Suppose you gathered a ball of interstellar gas that was equal to the size of the Earth (a radius of…
A:
Q: Taking Neptune to be at a distance of 30.6 AU from the Sun, how long does it take for a photon to…
A: The speed of an object is the rate of change of the distance travelled by the object with respect to…
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: Assuming all other variables were earth based besides atmospheric pressure, calculate the…
A: The usefull formula here is We are given P=1.45 atmP0=1atmR= 8.31 J⋅K-1.mol-1T0 = 1000C = 373…
Q: What is the Roche limit, and what does it have to do with planetary rings?
A:
Q: Using the method of Mathematical Insight ’FindingSizes of Extrasolar Planets’, calculate the radius…
A: The radius of the star is,Substitute the values,
Q: Need asap.. If you increase the semi-major axis of an exoplanet's orbit, how does this affect the…
A:
Q: Given what you know about the solar nebula theory, how likely is it that additional solar systems…
A: It is required to describe about the solar nebula idea and also have to write a description about…
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: What is the exoplanet doing as the quantity of light detected from the star increases from the…
A: Given: Exoplanets are planets that exist outside of our solar system. The suspected discovery of an…
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: Are the Gas giants only made out of gas?
A: Step1 - Understanding what is a Gas giant. A gas giant is a GIANT planet that is made of gas but…
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: 24 km/s. Its diameter is 1.5 c•y. (a) How old is the gas shell? (b) If the central star of the plan-…
A: Given: Nebula star is 12 times luminous as the sun, Nebula star is 15 times hotter as the sun, To…
Q: What characteristics of k2-28b lead scientists to believe it may be inhabitable?
A: K2-28b is a sub-Neptune sized planet orbiting its star in only 2.26 days. Despite its short orbital…
Q: A halo CME is observed moving away from the Sun. Should we expect this CME to impact Earth?…
A:
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: we learnt about polarisation and how it can help us detect exoplanets as well as their atmospheres.…
A: Please see the next step for solution:-
Q: 1. The Oort cloud is a cloud of dirty icebergs surrounding the solar system. The Oort cloud has a…
A:
Q: What do you mean by massive compact halo objects, or MACHOs?
A: Massive astrophysical compact halo objects are non-luminous objects that emit very low or negligible…
Q: AL
A: Here given that neptune -sized masses.
Q: In 2014, astronomers discovered 22 new KBOS, among those the following three: 2014 224 UE. with a…
A: There is one special subgroup of KBOs, known as the Plutino. These all have orbits with semi-major…
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