1:Which star has been redshifted the most? 2:Which star is moving towards us the fastest? Star C Star D Star A Star B 3:The wavelength of this spectral feature is measured to be 600nm in the lab, and 609 in Star A. What is the radial velocity of Star A? using km/s,
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: How many times brighter or fainter would a star appear if it were moved to: a. twice its present…
A:
Q: A star has a surface temperature of T = 10,000 K and a radius three times that of the Sun, R = 3R…
A:
Q: What star is a white dwarf that is much more dim and hotter than the sun. and which type of stars…
A: 1.carbon-oxygen white dwarfs 2. hydrogen- fusing white dwarfs 3. Sirius B 4. Procyon B 5. Stein 2051…
Q: If the stars at the turnoff point of a cluster have a mass of 3 M, what is the age of the cluster?…
A:
Q: 3) indicate which locations in the H-R diagram correspond to places where the evolution is slow.…
A: Using the H-R diagram shown the places where the evoultion has been slow is identified.
Q: If the main-sequence mass lower limit is 0.08 solar mass and the brightest main-sequence stars are 1…
A: The Main Sequence Stars are a mass sequence, with low mass stars forming an equilibrium with a cool…
Q: Which of the following is least reasonable regarding a star's position on the HR diagram? Group of…
A: "White dwarfs are small and cool and are located in the lower left part of the HR diagram."This…
Q: Our Sun is considered an "average" star. What is the average star really like? Explain. Could you go…
A: We can define an average star as: An average star, or more properly, an intermediate-mass star,…
Q: Suppose you observe a tight eclipsing binary with orbital period of 3 days, and radial velocity…
A: 1. Suppose you observe a tight eclipsing binary with orbital period of 3 days, and radial velocity…
Q: protostar • main-sequence • post-main-sequence
A: A Hertzsprung–Russell diagram (HR diagram) is a plot of stars' luminosity versus temperature, which…
Q: A planet orbits 1 AU from a star that is 2 times as massive as our Sun. How does the star's…
A: Let, The luminosity of the star = L The luminosity of the Sun = LSun The mass of the star = M The…
Q: The luminosity class of a star tells an astronomer: O how long ago the star formed O whether the…
A:
Q: . Imagine a giant sphere with a radius of 1 AU surrounding the Sun. What is the surface area of this…
A: "Since you have posted a question with multiple sub-parts, we will solve the first three subparts…
Q: From its spectral type, the surface temperature of a main sequence star is measured to be about…
A: Using the 1r2 rule method, we can find out the star's distance by measuring the intrinsic brightness…
Q: Star A has a temperature of 5,000 K. How much energy per second (in J/s/m2) does it radiate from a…
A:
Q: Tutorial Star A has a temperature of 6,000 K. How much energy per second (in J/s/m²) does it radiate…
A:
Q: The approximate relationship between the luminosity and the period of Cepheid variables is Lstar[in…
A:
Q: Star A has a temperature of 5,000 K and Star B has temperature of 6,000 K. At what wavelengths (in…
A: Temperature of star A = 5000 k temperature of star B = 6000 k
Q: The total luminosity of the Sun is 4e26 Watts. a) What is the mass (in kg) that the Sun loses each…
A:
Q: Stellar Classification and H-R Diagram Placement (40 points available). a. Where is your star…
A: ..
Q: On a Hertzsprung-Russell diagram, where on the main sequence would we find stars that have the…
A: We need to investigate where we find the largest main sequence stars in the H-R diagram.
Q: Based on what you know about main-sequence stars, select all of the correct statements from the…
A: Required : Correct statements .
Q: How high or low a star is on the main sequence is dictated primarily by ... Select one: A. its…
A: Answer: A high or low a star is on the main sequence is dictated primarily is discussed below:
Q: Based on what you learned about stellar evolution, select all of the correct statements from the…
A: 1. Correct: From the studies, it has been found that the period of some Cepheid variables actually…
Q: What do these three nebulae have in common? NOTE: There are multiple correct answers. Select all…
A: (1) As we know that Nebulae are made of dust and gases mostly hydrogen and helium. (2) The dust and…
Q: Number the following stages in the life cycle of a sun-like star in order of occurrence (1-8): White…
A: There are billions of galaxies in the universe and in it there are billions of stars. Stars are…
Q: Which of the following statements is wrong? A. A main-sequence star is cooler and brighter than it…
A:
Q: the Sun?
A: Given: To explain the star which is white supergiant star also brightest and hottest than the Sun…
Q: A radio broadcast was made in 1913. Since that time until 2011, how far has that radio broadcast…
A: The radio waves in a radio broadcast travel at the speed of light, that is 300,000 km/sec. So if the…
Q: Give ALL correct answers referring to the properties of known stars, i.e., B, AC, BCD...…
A: Required : Correct answers:
Q: Match each statement with the appropriate item (If the first corresponds to B and the next 4 to C,…
A: (1) When a main sequence star runs out of hydrogen fuel, nuclear fusion ceases and the star starts…
1:Which star has been redshifted the most?
2:Which star is moving towards us the fastest?
Step by step
Solved in 2 steps
- List the following 5 terms in order through a stars life cycle (starting with the sun), through the remainder of its lifetime: a. Black dwarf b. Planetary nebula c. Red giant d. Star (Sun) e. White dwarfWhich statement is most logical? a First stars are thought to have been more massive than Sun because the materials used to make clouds were more abundant at the beginning b First stars are thought to have been more massive than Sun because the temperatures of the clouds that made them were higher because they consisted entirely of hydrogen and helium c First stars are thought to have been more massive than Sun because star-forming clouds were much denser early in time d First stars are thought to have been more massive than Sun because the clouds that made them were much more massiveMatch each characteristic below of a one-solar-mass star to its appropriate phase. Answer M for Main-sequence Star, or P for Protostar. If the first is M and the rest P, enterMPPPPPP). A) energy generated by nuclear fusion B) pressure and gravity are NOT precisely balanced. C) surface radiates energy at same rate that core generates energy D) radius much larger than the Sun E) energy generated by gravitational contraction F) lasts about 10 billion years G) luminosity much greater than the Sun
- How can we know that the sun will “die” in about 5 billion years? Choose the correct answer. A. We can see the evolution and death in the spectra B. We can see the entire process as it plays out in a star C. We look at thousands of stars like the sun and can see them in all stages of developmentMatch each statement with the appropriate item (if the first corresponds to B and the next 4 to C, enter BCCCC) 1) group of stars that was formed all at the same time, with the same composition 2) the top of the main sequence of a cluster; more massive stars in the cluster have already evolved 3) globular clusters stars that are burning helium in their core 4) young, spread out star cluster 5) old, dense star cluster A. main sequence turnoff B. open cluster C. star cluster D. horizontal branch stars E. globular clusterWhich of the following statements about various stages of core nuclear burning (hydrogen, helium, carbon, etc.) in a high- mass star is not true? A. As each stage ends, the core shrinks and heats further. B. Each successive stage creates an element with a higher atomic number and atomic mass number. C. As each stage ends, the reactions that occurred in previous stages continue in shells around the core. D.Each successive stage lasts for approximately the same amount of time.