6. consist of relatively low-density ionized hydrogen. (a) HI regions (b) H Il regions (c) protostar (d) protoplanetary disk (e) dark nebula 7. When passing through interstellar medium, light is and (a) shocked; fragmented (b) excited; ionized (c) dimmed; reddened (d) speeded up; then slowed down (e) emitted; blue-shifted
Q: 2. Explain the different mechanisms that power the internal heating of a giant star, a main sequence…
A: Question : Explain the different mechanisms that power the internal heating of a…
Q: Describe how a star froms. What would happen to a star the size of our Sun once it runs out of…
A:
Q: 1. Quasar F (for Far) has the same luminosity as Quasar N (for Near), But F is 10 times further…
A: The relation between luminosity and brightness is given as L = I/d2 where I is apparent brightness…
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: What is the wavelength of an electron with a velocity of 10' m/s?
A: 4. The wavelength of the electron at the velocity of 107 m/s The wavelength of the electron is…
Q: The traditional theory of the formation of our galaxy CANNOT explain a. the existence of the disk…
A: a. The existence of the disk of the galaxy
Q: Serving aboard a starship with a Vulcan helmsman
A: The answer provided below has been developed in a clear step by step manner
Q: A spring with k=5 N/m is stretched 0.1 m. A 0.2 kg object is pushing on the spring. If the object is…
A: Height of the object doesn't change so gravitational potential energy would be zero And no thermal…
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: What factors resist the contraction of a cloud of interstellar matter?
A: Interstellar matter is defined as the space between the stars' systems in the galaxy. It is made…
Q: . How does the H-R digram of a given star cluster change as the cluster ages?
A: HR Diagram : Note : Blue color indicates the hottest stars and red color represent the…
Q: 1. In this question, you may assume that the core temperature in the Sun is T=15x10$K. L Bolatively…
A:
Q: .Explain proton-proton cycle of the energy production in stars using appropriate fusionreactions and…
A: The proton-proton cycle, also known as the proton-proton chain, is the primary energy production…
Q: Based on what you know about observations of the interstellar medium at wavelengths other than for…
A: SOlution: Select teh coresct stement aboutt eh interstellar medium for the wavelentghs.
Q: Le Trifid Nebula.
A: SOL.The reason is the difference in wavelengths captured by each type of imaging.Explanation:The two…
Q: Interstellar extinction dims starlight by about 1 magnitude per 1000 pc. What fraction of photons…
A: The apparent visual magnitude of star is changed by 1 magnitude, produces a flux ratio of fifth…
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: Please answer within 90 minutes.
A: Part a. Part b. Part c.
Q: 7. What is the technical name for a star family that formed at the same time from a single cloud of…
A: A star cluster is a group of stars that are born at the same time from a single cloud of gas. They…
Q: Explain in full detail how and why medium-mass stars like the Sun evolve off the main sequence. Be…
A: Answer is explained below with proper explanation
Q: 2) A very rough estimate for a star is given by the density profile: p1) = P. (1-) where p, is the…
A:
Q: What are the two forces that make a star stable, and using these two ideas, what Mummon happens in…
A: Asked: 1. What are the two forces which operate in the stars, which make them stable? 2. What…
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: 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: The discovery of Cosmic Background Radiation helped explain... a. Nebular-Condensation Theory b. why…
A: Cosmic background radiation (or) Cosmic Microwave background radiation (CMBR): It is the radiation…
Q: 4) Why infrared is preferred to observe the stars around Sgr A*?
A: There are molecules of gas and dust in interstellar space. They are sent out when a star dies.…
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: 2. The Crab pulsar radiates at a luminosity of $1 \times 10^{31} \mathrm{~W}$ and has a period of…
A: (a) To determine the rate at which the period is increasing and how long it will take to double:Step…
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: Problem 7. Assume that a star can be approximated as a black body, using Stefan's Boltzmann Law 1.…
A: Solution: 1. The luminosity of a star is the power emitted or power output of the star. And the…
Q: The Cosmic Microwave Background is remarkable in many ways. Let's illustrate this by personalizing…
A:
Q: 5. A star whose temperature is 8000 K has a peak wavelength of 362.5 nm, according to Wien's Law. If…
A: The peak wavelength by observer on earth = 362.365nm.Your required explanation is given below. Thank…
Q: 3000 cm source with luminosity at 13.6 eV of L13.GeV = 2.18 x 109 erg s- at the centre. cloud of…
A: We can estimate the size of the HII region by calculating the stromgren radius Now nH is the cloud…
Q: c) The star may be assumed to evolve with effective temperature, Teff, remaining constant. Show that…
A: To start, we'll use the equation for the luminosity of a star: where L is the luminosity, R is the…
Q: 2. Suppose an absorption line in a spectrum of light from a very distant galaxy is 5015 Angstroms.…
A: Write the expression for the Dopler’s effect and solve for the speed (v) of the separation, that is…
Q: The first stars to form in our galaxy a. had circular orbits. b. had highly elliptical…
A: Population 1 stars are the newer and younger stars.
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: 1. The Oort cloud is a cloud of dirty icebergs surrounding the solar system. The Oort cloud has a…
A:
Q: Based on what you know about main-sequence stars, select all of the correct statements from the…
A: Required : Correct statements .
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: What's the average density (in kg/m^3) inside the event horizon of a black hole with mass 4*10^6…
A: The event horizon of a black hole is defined as the surface around the blackhole after which defines…
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: 2. List the equations of stellar structure in mathematical form and explain their physical meaning.…
A: Explanation: The set of equations of stellar structure in mathematical form are as follows. ∂P∂…
Q: describe the characteristics of the various kinds of interstellar gas (HII regions, neutral hydrogen…
A: Star formation is generally more active in the denser, inner part of the Milky Way than in the outer…
Q: Background: Design and completely analyze an optical system to measure how fast the Sun is…
A: The doppler shift formula is given by, Shifted frequency, fs=c±vc±v fowhere,fo=Original…
Q: Assuming a mass loss rate of 3*10^-8 solar masses yr^-1 and a stellar wind velocity of 100 km s^-1…
A: Required : Mass density at the 100 AU
Q: 1) a) Calculate the Jeans length for the dense core of a giant molecular cloud with T=10 K, n =…
A: To answer: a) Calculate the Jeans length for the dense core of a giant molecular cloud with T=10 K,…
Q: 2. A galaxy cluster has a galaxy behind it whose image we see as being smeared out and curved, with…
A: The objective of this question is to calculate the mass of a galaxy cluster given the redshifts of…
Step by step
Solved in 3 steps
