es are detectable by their accretion disks producing mainly what type of light? a. infrared light b. ultraviolet light c. X rays d. gamma rays
Q: Of the following objects, the one that produces the least energy is a a. supernova. b. Type 1…
A: Answer:- Option (a) correct. Supernova.
Q: Gravitational lensing can be used to detect which component of the Universe? a. Dark Matter.…
A: Answer: (A) Dark Matter
Q: Which mathematical quantity is imagined to be present at the center of a black hole? a) Unity b)…
A: Answer:- Option (b) correct. Singularity
Q: In order to form a black hole, a star must be about how much more massive than our Sun? a. Fifty…
A: As per the Theory of black hole, When a big giant star is dead, The star Formed in to black hole.…
Q: Big Bang produced mainly hydrogen and helium and only extremely trace amount of heavier elements.…
A: We have to find from carbon in our body come from
Q: GMm F r2 F,(r = R) The surface gravity g = of a body is. The acceleration due to gravity that an…
A:
Q: he age of the universe can be determined if a. the universe is flat. b. the amount of dark…
A:
Q: If an object formed from a cloud of dust and gas is less than 0.08 solar mass, it forms a a.…
A: If an object formed from a cloud of dust and gas is less than 0.08 solar mass, it forms a brown…
Q: 2) What happens when one of the star ina binary system becomes a black hole.
A: Binary systems are two astronomical bodies that orbit each other around a common center of mass. If…
Q: Which of the following can explain how we can calculate distances to stars despite being able to…
A: Parallax is a technique used to measure the distance to a star by observing its apparent shift in…
Q: Stars which appear single to the naked eye but are double when seen through a telescope are: A.…
A: Stars which appear single to the naked eye but are double when seen through a telescope are called…
Q: If you wanted to determine the mass of a black hole in an X-ray binary, what would be easiest for…
A: Gravitation.
Q: What is the average density of the neutron star that has the same mass as the sun but a radius of…
A: Solution:-Given thatmass of neutron star =mass of SunRadius of neutron star (Rn)=97.254 km=97254 m
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: If a stellar remnant is in between 0.4 and 1.4 solar masses, the resulting object will be a a.…
A: If a stellar remnant is in between 0.4 and 1.4 solar masses, the resulting object will be a white…
Q: The last nuclear reaction in the core of massive stars that uses energy rather than producing energy…
A: When the Helium in the core of the massive stars exhausts, the evolution of stars is different from…
Q: Part 1. Stellar Mass Black Holes These are the collapsed cores of massive stars which end their life…
A:
Q: The spectra of the cores of Seyfert galaxies contain emission lines of highly ionized atoms that are…
A: Given, The spectra of emission of the cores of Seyfert galaxies
Q: Determine how much time a black hole having 3 solar masses will take to radiate its energy.
A: As per the quantum mechanical model of a black hole, they emit radiations known as Hawking…
Q: 15) Calculate the gravitational redshift caused by Sun on the photons coming from its surface.
A: As per general relativity when light moves away from a gravitational source its wavelength will…
Q: What are typical orbital periods for X-ray binaries? Oa Days for high-mass binaries and woeks for…
A:
Q: Originally, the signals that were found to be pulsars were thought to be a. spinning
A: We have to know about basic here.
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: 36. Observations of spiral galaxy M33 show that material near its edge orbits at a speed roughly 4…
A:
Q: What possible evidence do we have for the existence of "dark energy"? a. It blocks our view of…
A: In this question we have to answer what possible evidence do we have for the existence of "Dark…
Q: ow is Doppler shift used in detecting extra solar planets? * A. Scientists observe those stars…
A: In our solar system, all bodies orbit a common center of mass, including the Sun, but the Sun is so…
Q: If the universe is closed and finite, then a. the universe has a center and an edge. b. the…
A: If the universe is closed and finite, then the final fate of the universe will be very cold and of…
Q: Which of these is NOT used as a spiral tracer? a. O stars b. B stars c. young open clusters…
A: Spiral tracers are objects that are commonly found in spiral arms and soare used to trace spiral…
Q: Which of the following observatories is most likely to discover a black hole in a binary system? A.…
A: A binary system is defined as a system in which two objects revolve around each other, having a…
Q: What strong evidence found in the mid-1960s led to wide acceptance of the big bang theory of the…
A: We need to find the evidence that led to wide acceptance of the big bang theory of the universe.
Q: Cesar reads about the big bang theory, which explains that the universe expanded as the result of an…
A: Cesar reads about the big bang theory, which explains that the universe expanded as theresult of an…
Q: What kind of reactions provide a star with energy
A: There are mainly two type of nuclear reactions. 1. Nuclear fission 2. Nuclear fusion In…
Q: Suppose you drop a clock toward a black hole. As you look at the clock from a high orbit, what will…
A: A block hole is an interstellar object that has a very large gravity associated with it. A block…
Q: What is the peak wavelength (in nm) of a neutron star's luminosity if its temperature is 106 K?
A: As we know that Using weins displacement law,λmax T = b -----(1).where b is a constant. known as…
Q: 38 An AGN hosts a central Black Hole of mass 5×10 kg. The AGN emits at 1/6 of the Eddington limit.…
A: To find the luminosity of the AGN, we first need to calculate the Eddington luminosity (LEdd) and…
Q: search for observational evidence of black holes began in the early a. 1890s. b. 1930s. c.…
A: Observational evidence of black holes : Black holes was first predicted by Albert Einstein in 1916 .…
Q: How can mass escape from the region inside of a black hole? Oa Matter can escape the event horizon…
A:
Q: What causes the galactic winds coming from a supermassive black hole? Oa Material falling inward…
A: Solution: Galactic winds are high-speed wind nearly 300 - 500 km/s from the supermassive black hole…
Q: The resolution of Olbers’s paradox suggests that it gets dark at night because a. the universe is…
A: The resolution of Olbers’s paradox suggests that it gets dark at night because the universe is not…
Q: Assume that the laws of Newtonian mechanics and Newtonian gravity still hold for a neutron star,…
A: Assume that the laws of Newtonian mechanics and Newtonian gravity still hold for a neutron star,…
| a. |
infrared light
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| b. |
ultraviolet light
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| c. |
X rays
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| d. |
gamma rays
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