The masses and diameters of each star in a binary can be ...

[craiczarry]

The masses and diameters of each star in a binary can be determined from ___________________ _ binaries.
 
  Fill in the blank(s) with correct word

Question 2

Millisecond pulsars that are very old are
 
  a. believed to be the result of mass transfer from a companion that increased the spin of the pulsar.
  b. all single objects.
  c. not spinning as rapidly as they seem because they have four hot spots that produce the flashes.
  d. X-ray binaries.
  e. gamma-ray bursters.

[stano32]

Answer to Question 1

eclipsing

Answer to Question 2

a

[craiczarry]

Gracias!

[jackie]

Excellent