The Cosmic Perspective Fundamentals (2nd Edition)
2nd Edition
ISBN: 9780133889567
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 10, Problem 9QQ
To determine
The binary systems which is most likely to contain a black hole.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A light of wavelength 620 nm is emitted from the following four places. What wavelength is observed for this light by an observer a long distance away? (The objects are not moving with respect to the observer)
The surface of a 0.84 solar mass white dwarf that has a radius of 708000 km:
?
The surface of a 2.52 solar mass neutron star that has a radius of 14.2 km:
2 Schwarzschild radii from a 20 solar mass black hole:
?
1.048 Schwarzschild radii from a 20 solar mass black hole:
?
An AGN is emitting with a luminosity of 2×1040W. The AGN's brightness varies by 10% on a time scale of 20 hours. Assuming that the size of the emitting region of the AGN is three Schwarzschild radii, choose which of the following values could give the mass of the central Black Hole, in solar masses.
The velocity curve for a double
spectroscopic binary is shown in the sketch.
The system is viewed edge-on, i.e., with an
inclination angle of i = 90°, so that the
maximum possible Doppler shifts for this
system are observed.
line
400
So = U, Ani
300
200
loo = v Ain i
100
-100
-200
-300
400
• 1 2 3 • s 7 a
10
Time (days)
Find the mass of star 1, mı, in terms of solar
masses.
1 solar mass = 2x1030kg
Round your answer to three significant
figures.
Doppler Velocity
(20su)
Chapter 10 Solutions
The Cosmic Perspective Fundamentals (2nd Edition)
Ch. 10 - Prob. 1QQCh. 10 - Prob. 2QQCh. 10 - Prob. 3QQCh. 10 - Prob. 4QQCh. 10 - Prob. 5QQCh. 10 - Prob. 6QQCh. 10 - Prob. 7QQCh. 10 - Choose the best answer to each of the following....Ch. 10 - Prob. 9QQCh. 10 - Choose the best answer to each of the following....
Ch. 10 - Prob. 11QQCh. 10 - Prob. 12QQCh. 10 - Explain all answers clearly, with complete...Ch. 10 - Explain all answers clearly, with complete...Ch. 10 - Prob. 15SEQCh. 10 - Prob. 16SEQCh. 10 - Prob. 17SEQCh. 10 - Prob. 18SEQCh. 10 - Prob. 19SEQCh. 10 - Explain all answers clearly, with complete...
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
- What characteristics must a binary star have to be a good candidate for a black hole? Why is each of these characteristics important?arrow_forwardA stellar black hole may form when a massive star dies. The mass of the star collapses down to a single point. Imagine an astronaut orbiting a black hole having eight times the mass of the Sun. Assume the orbit is circular. a. Find the speed of the astronaut if his orbital radius is r = 1 AU. b. Find his speed if his orbital radius is r = 11.8 km. c. CHECK and THINK: Compare your answers to the speed of light in a vacuum. What would the astronauts orbital speed be if his orbital radius were smaller than 11.8 km?arrow_forwardA black hole is an object with mass, but no spatial extent. It truly is a particle. A black hole may form from a dead star. Such a black hole has a mass several times the mass of the Sun. Imagine a black hole whose mass is ten times the mass of the Sun. a. Would you expect the period of an object orbiting the black hole with a semimajor axis of 1 AU to have a period greater than, less than, or equal to 1 yr? Explain your reasoning. b. Use Equation 7.6 to calculate this period.arrow_forward
- An AGN hosts a central Black Hole of mass 2×1038×1038 kg. The AGN emits at 1/51/5 of the Eddington limit. Find the luminosity of the AGN. Give your answer in Watts to 3 significant figures.arrow_forwardvelocity curve for a double line spectroscopic binary is shown in the sketch. The system is viewed edge-on, i.e., with an inclination angle of i 90°, so that the maximum possible Doppler shifts for this system are observed. 400 SPo = , Ain i 300 200 l0o = v Ain i 100 -100 -200 -300 400 0 1 2 3 4 10 Time (days) Find the speed of star 2 in km/s. Doppler Velocity (2esu)arrow_forwardA white dwarf in a binary system has a radius of 7000 km and a mass equal (minus an infinitesimal amount) to the Chandrasekhar limit of $1.4 M_{\text {sun }}$. The companion transfers an infinitesimal amount of mass to the white dwarf which is enough to send it over the Chandrasekhar limit and it collapses to a neutron star with a radius of 14 km . Calculate the amount of gravitational potential energy released. NOTE: we can assume that the mass of the neutron star once is triggered and the mass of the WD are both equal to the Chandrasekhar mass in this case.arrow_forward
- What is the Schwarzschild radius of a star with a mass of z × 10 Mun? The answer is in 106m. So if you calculated an answer like 157,895,250 convert it like this: 106 157, 895, 250 × 157.9 and that is what you will input 100000 z =2.57 y =3 M Sun = 2 × 10³⁰ kg =arrow_forwardWhat is the orbital period (in s) of a bit of matter in an accretion disk that is located 6 ✕ 105 km from a 99 M black hole? Hint: Use the circular orbit velocity formula, Vc = GM r . sarrow_forwardA gravitational dead zone is found between two hyper giant stars, HG A and HG B, 34 million km from HG A. It is known that the mass of B is 25 x the mass of A. Determine the distance between the two stars in millions of km.arrow_forward
- what is the mass of the black hole ? give your answer as a multiple of Ms where Ms is the solar mass, Ms = 2.0 * 10^(30) express your answer as a multiple of the solar mass mass Ms.arrow_forwarda double line The velocity curve for spectroscopic binary is shown in the sketch. The system is viewed edge-on, i.e., with an inclination angle of i = 90°, so that the maximum possible Doppler shifts for this system are observed. 400 U, Aini 300 200 oo - v Ain i 100 -100 -200 -300 400 o 1 2 3 +s 7 8 10 Time (daye) Find the orbital period of this binary in days. Doppler Velocity (2esun)arrow_forwardTwo stars in a binary system, are seen edge-on from Earth. The HB line emitted by Star 1 varies between 486.162 nm and 486.186 nm, while that emitted by Star 2 varies between 486.140 nm and 486.208 nm. Assuming the stars are on a circular orbit, calculate the orbital velocity of the two stars and their mass ratio. What additional observational data is required to determine the mass of the system?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningAstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStaxUniversity Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningFoundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage LearningUniversity Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University