Which items are NOT used as "standard candles" for the measurement of distances to distant galaxies?
A) Cepheid variables
B) the width of the 21-cm H I radio emission line
C) supernova explosions
D) the brightness and pulsation rates of pulsars
Correct Answer:
Verified
Q8: One of the first three astronomical objects
Q12: The discovery of the peculiar galaxy Cygnus
Q14: The major surprise about Cygnus A, one
Q194: The Tully-Fisher relationship can be used to
Q196: What method is used to determine the
Q204: The Tully-Fisher relation can be used to
Q343: Which arrangement of distance-measuring techniques is listed
Q344: The Tully-Fisher relationship relies on broadening of
Q346: The first three strong radio sources,discovered by
Q352: The width (Doppler broadening)of the 21-cm line
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