________ galaxies seem to represent a transition between quasars ...

[maegan_martin]

________ galaxies seem to represent a transition between quasars and similar active nuclei compared to more normal spirals.
 
  Fill in the blank(s) with correct word

Question 2

The Chandra X-ray telescope must use:
 
  A) a lens of fluorite.
  B) grazing incidence optics to focus the short wavelengths.
  C) a Newtonian reflecting design to avoid chromatic aberration.
  D) X-ray film instead of CCDs for imaging.
  E) a Schmidt corrector plate to avoid spherical aberration.

[Anna]

Answer to Question 1

Seyfert

Answer to Question 2

B

[maegan_martin]

TYSM

[tkempin]

Gracias!