Which of the following is not evidence for dark matter?
A) the flat rotation curves of spiral galaxies
B) the broad absorption lines found in the spectra of elliptical galaxies
C) X-ray observations of hot gas in galaxy clusters
D) gravitational lensing around galaxy clusters
E) the expansion of the universe
Correct Answer:
Verified
Q4: A gravitational lens occurs when
A) a massive
Q5: Why do we call dark matter "dark"?
A)It
Q6: A mass-to-light ratio for a galaxy of
Q7: Why do we expect WIMPs to be
Q8: Which of the following are candidates for
Q11: How do we determine the amount of
Q12: Some potential MACHOs (massive compact halo objects)
Q14: What evidence suggests that the Milky Way
Q14: When we measure the broadening of absorption
Q30: Which of the following is an example
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents