Cosmic Perspective Fundamentals
3rd Edition
ISBN: 9780134988504
Author: Bennett, Jeffrey O., Donahue, M. (megan), SCHNEIDER, Nicholas, Voit, Mark
Publisher: Pearson,
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 8, Problem 8QQ
Choose the best answer to etch of the following. Explain your reasoning.
What two pieces of information would you need in order to measure the masses of star in an eclipsing Binary System? (a)the time between Atlas and the average distance between the stars (b) the period of The Binary System and its distance from the Sun (c) the velocities of the stars and the Doppler Shifts of their absorption lines.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Please do not give solution in image formate thanku
Q:
You’ve just discovered another new X-ray binary, which we will call Hyp-X2 (“Hyp” for hypothetical). The system Hyp-X2 contains a bright, G2 main-sequence star orbiting an unseen companion. The separation of the stars is estimated to be 12 million kilometers, and the orbital period of the visible star is 5 days.
Use Newton’s version of Kepler’s third law to calculate the sum of the masses of the two stars in the system.
a)Express your answer in kilograms to two significant figures.
b) Give your answer from the previous part in solar masses. ( Msun= 2.0 x 10 /30 kg). Express your answer as a multiple of sun’s mass to two significant figures.
C) Determine the mass of the unseen companion. ( Hint: A G2 main-sequence star has a mass of 1 Msun.) Express your answer as a multiple of sun’s mass to two significant figures.
The previous answer was not correct, please help me
Why I got it wrong? Please help me to provide just few summary.
Please do not give solution in image formate thanku
If a star has a Doppler velocity of-4500km/s what is the measurement of the special line for H- alpha (Ha) if the rest value of the wavelength of H-alpha is 656.3 nm.?
Chapter 8 Solutions
Cosmic Perspective Fundamentals
Ch. 8 - Choose the best answer to each of the following....Ch. 8 - Prob. 2QQCh. 8 - Choose the best answer to etch of the following....Ch. 8 - Prob. 4QQCh. 8 - Choose the best answer to etch of the following....Ch. 8 - Prob. 6QQCh. 8 - Choose the best answer to etch of the following....Ch. 8 - Choose the best answer to etch of the following....Ch. 8 - Choose the best answer to etch of the following....Ch. 8 - Choose the best answer to etch of the following....
Ch. 8 - Choose the best answer to etch of the following....Ch. 8 - Choose the best answer to etch of the following....Ch. 8 - Prob. 13SEQCh. 8 - Prob. 14SEQCh. 8 - Explain all answers clearly, with complete...Ch. 8 - Explain all answers clearly, with complete...Ch. 8 - Prob. 17SEQCh. 8 - Prob. 18SEQCh. 8 - Prob. 19SEQCh. 8 - Prob. 20SEQCh. 8 - Explain all answers clearly, with complete...Ch. 8 - Prob. 22SEQ
Additional Science Textbook Solutions
Find more solutions based on key concepts
4. If the sensor array of a digital camera is placed at the location of a real image, the sensor will record th...
College Physics (10th Edition)
The specific heat capacity of Albertsons Rotini Tricolore is approximately 1.8J/gC. Suppose you toss 340 g of t...
An Introduction to Thermal Physics
If acceleration is proportional to the net force or is equal to net force.
Conceptual Physics (12th Edition)
Show that a battery delivers the most power when the load resistance across its terminals is equal to its inter...
Essential University Physics (3rd Edition)
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- State the definition for a parsec, and derive its value in terms of As- tronomical Units. Convert your answer for the value of the distance of a parsec in Astronomical Units into light years. Be sure to include a large and clearly labeled diagram showing how you arrived at your conclusions. Be sure to show all work!arrow_forwardPlease answer the following A) Suppose an object takes 1000 years to orbit the Sun. How many times farther from the Sun is it, when compared with Earth? B) Communications with the spacecraft Alpha using radio waves require 2000 years for the round trip (there and back). This implies that Alpha is how many light years away from Earth?arrow_forwardSolve the following problem and explain step by step how you found your answer. The correct answers are T = 1.80 N, and Theta = 43.9 degrees.arrow_forward
- For the graph shown above, a) what quantity would you label the y-axis with if the distance is between galaxies and the Earth? Explain your answer. Think through what we know is happening, motion-wise, out there in the galaxy. b) Also explain why you think there are dots and a solid line, on the graph.arrow_forwardUse Kepler's 3rd Law and the small angle approximation. a) An object is located in the solar system at a distance from the Sun equal to 41 AU's . What is the objects orbital period? b) An object seen in a telescope has an angular diameter equivalent to 41 (in units of arc seconds). What is its linear diameter if the object is 250 million km from you? Draw a labeled diagram of this situation.arrow_forwardAs a star runs out of hydrogen to fuel nuclear fusion in its core, changes within the star usually cause it to leave the main sequence, expanding and cooling as it does so. Would a star with a radius 6 times that of the Sun, but a surface temperature 0.4 times that of the Sun, be more, or less luminous than the Sun? Show and explain your reasoning. You may assume the surface area of a sphere is A = 4πr2.arrow_forward
- Let us imagine that the spectrum of a star is collected and we find the absorption line of Hydrogen-Alpha (the deepest absorption line of hydrogen in the visible part of the electromagnetic spectrum) to be observed at 656.5 nm instead of 656.3 nm as measured in a lab here on Earth. What is the velocity of this star in m/s? (Hint: speed of light is 3*10^8 m/s; leave the units off of your answer)arrow_forwardThink of our Milky Way Galaxy as a flat circular disk of diameter 100,000 light-years. Suppose we are one of 1000 civilizations, randomly distributed through the disk, interested in communicating via radio waves. How far away in light years would the nearest such civilization be from us on average? Show your working. (Hint: Begin by calculating the area of the disk. Find the area of one of a 1,000 squares. Consider the separation of the centres of two adjacent squares.)arrow_forwardUse the data in Appendix I to plot an HR diagram for this sample of nearby stars. How does this plot differ from the one for the brightest stars in Exercise 18.25? Why?arrow_forward
- The eclipsing binary Algol drops from maximum to minimum brightness in about 4 hours, remains at minimum brightness for 20 minutes, and then takes another 4 hours to return to maximum brightness. Assume that we view this system exactly edge-on, so that one star crosses directly in front of the other. Is one star much larger than the other, or are they fairly similar in size? (Hint: Refer to the diagrams of eclipsing binary light curves.)arrow_forwardHello, part D was incorrect, and where does the six come from?? I confused on reading the grapharrow_forwardAlpha Centauri has a parallax angle of 0.7420", calculate its distance in parsecs and in light-years. Show your work!arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- AstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStaxStars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage LearningFoundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
- Stars and GalaxiesPhysicsISBN:9781305120785Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Stars and Galaxies
Physics
ISBN:9781305120785
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Convex and Concave Lenses; Author: Manocha Academy;https://www.youtube.com/watch?v=CJ6aB5ULqa0;License: Standard YouTube License, CC-BY