What is degenerate matter and why is it important to the study of stars?
Q: What are the different kinds of thermonuclear fusion in main-sequence stars and at what temperatures…
A: Hydrogen fusion takes place in the main-sequence stars. The star turns on and becomes a main…
Q: All stars start their lives with the same basic composition. What determines their differences? O…
A: Mass they formed with
Q: Describe the life cycles of both low mass and high mass stars, understand how their properties…
A: The star is the hot bodies of glowing gas that start their life in Nebulae. The enormous cloud of…
Q: Life cycle of stars Q. What color are the hottest stars? What color are the coolest stars?
A: Life cycle of stars Q. What color are the hottest stars? What color are the coolest stars?
Q: Describe how a star froms. What would happen to a star the size of our Sun once it runs out of…
A:
Q: Why are metals less abundant in older stars than in younger stars?
A: Answer: The metals which basically are non hydrogen and helium material are produced or created in…
Q: Choose the correct statements concerning spectral classes of stars. (Give ALL correct answers, i.e.,…
A: A) The K star or orange dwarf has spectrum dominated by hydrogen ionization lines not of ionized…
Q: Using the Hertzsprung-Russell diagram above, rank each of the stars shown according to: luminosity,…
A: We know that the star with lower absolute magnitude will have higher luminosity (from the definition…
Q: A star's Zero Age Main Sequence (ZAMS) radius R, luminosity L, and effective temperature Teff depend…
A: Given: Zero Age Main Sequence is beginning point of the main sequence of the star. The radius at…
Q: Put in order, from earliest to latest, the elements that high-mass star will synthesize in its core…
A: The 1 mole of mass of the given elements is:
Q: Astronomers studying regions like the Orion Giant Molecular Cloud have observed that a wave of star…
A: Our Galaxy is pervaded by a diffuse mixture of gas and dust that occasionally becomes denser,…
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: What are the three possible outcomes of stellar evolution? Describe each possibility,…
A: The three possible outcomes of stellar evolution are: 1. White dwarf 2. Neutron Star 3. Black hole
Q: What is the ratio of the percent of metals in extreme Population I stars (3%) to that in extreme…
A: Given data: The percent of metals in extreme Population I stars is Npop I=3% The percent of metals…
Q: Which stars are associated with a planetary nebula? black holes, neutron star's, white dwarf or main…
A: Required : What are planetary nebula associated with.
Q: What four (4) stars are not as bright (luminous) as our Sun? JUST NAME 4 STARS THAT ARE NOT AS…
A:
Q: Explain what happens during a supernova, what features it produces, and the process of…
A: Hwy dear have a look
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: Why are titanium oxide features visible in the spectra of only the coolest stars?
A: If the temperature is high enough, the TiO will break into components. As a result, there will be no…
Q: What kind of star is most likely to become a white-dwarf supernova? A. a star like our Sun B. a…
A: There are gas and dust particles in outer space when their mass increases they will start attracting…
Q: *IMPORTANT NOTE: DO NOT make any stars' masses or stage of life answer. reference as a reason to the…
A: Given that both stars have roughly the same surface temperature, and also considering the typical…
Q: 1 There are 200000 AU radius clouds will form a star of 10 solar masses and the 150000 AU radius…
A:
Q: Why massive stars are short lived?
A: A massive star has a shorter life spanthan an average star because of fasterhydrogen fuel…
Q: Consider two different clusters with approximately the same turnoff luminosity. Cluster A has a main…
A: Given two clusters A and B on the H-R diagram (which is a plot between the luminosity and…
Q: Estimate the luminosity of a 3-solar-mass main-sequence star; of a 9-solar-mass main-sequence star.…
A: The relationship between luminosity and mass of the main-sequence star is given by, L=M3.5 (1)…
Q: protostar • main-sequence • post-main-sequence
A: A Hertzsprung–Russell diagram (HR diagram) is a plot of stars' luminosity versus temperature, which…
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: The stars in a binary system are a 4 MO main sequence star and a 1 MO red giant. Explain why this…
A: A binary star system is formed when two stars come close enough to form an orbit around its…
Q: Globular clusters contain no stars more massive than the Sun. Which of the following seems like the…
A: First, we are aware that no stars more massive than the Sun can be found in globular clusters. Any…
Q: 1.Outline the process of star formation, including all relevant factors that influence the outcome.…
A: 1.The cloud flattens into a rapidly revolving disc due to the initial spin of the cloud and the…
Q: 3. a) Explain how it is possible for the core of a red giant to contract at the same time that its…
A: a) The core of a red giant contracts due to depleted fuel, while nuclear fusion in surrounding…
Q: Based on what you learned about the source of stellar energy and how stars make energy, select all…
A: Solution: 1. Many stars make energy with the proton-proton cycle. True, Many, less massive stars…
Q: Iron is unique among the elements in terms of its nuclear properties, and this gives it a decisive…
A: Explanation: Iron is not the heaviest element that stars can produce, just the heaviest one that can…
Q: MODULE: From the Universe to the AtomTOPIC: Origins of the Elements (II)QUESTION:Part a) Explain why…
A: Part A:In a star cluster every star is expected to be formed from the same cloud of interstellar gas…
Q: Stars found on the main sequence of a Hertzsprung-Russell diagram share certain features not shared…
A: The correct answer is:(e) Stars on the main sequence of a Hertzsprung-Russell diagram all generate…
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: What critical event must occur in order for a protostar to be- come a star?
A: Stars are formed from interstellar clouds. When the mass becomes high enough the molecular cloud…
Q: Which of the following is the least likely reason that astronomers consider supernova 1987A so…
A: Supernova 1987A is one of the most studied and significant supernovae in modern astronomy. It was a…
Q: Based on what you know about the interactions between stars and other interstellar media, select all…
A: Interstellar space and formation of stars Interstellar space is the space between stars. This space…
Q: Select all of the statements about the main sequence stage in the life of a star that are TRUE:…
A: The statements about the main sequence stage in the life of a star that are TRUE: All stars spend…
Q: What is fusion? How does it happen inside a star?
A: Nuclear fusion is the process by which two light atomic nuclei combine to form a single heavier one…
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: As a cluster of stars begins to age, which type of star in the cluster will move off the main…
A:
Q: 1. a) What are brown dwarfs? b) What are T Tauri stars?
A: Definition for brown dwarfs and T Tauri stars are given below.Explanation:a) Brown Dwarfs: Brown…
Step by step
Solved in 2 steps
