Sentences with phrase «other astronomers considered»

In the past, other astronomers considered NGC 1400 to be a foreground galaxy, in the same direction as NGC 1407 but at only one - third of the distance.

Not exact matches

Astronomers long considered two other main candidates in addition to synchrotron radiation: black - body radiation, which results from the emission of heat from an object, and inverse Compton radiation, which results when an accelerated particle transfers energy to a photon.

Although astronomers would prefer a single explanation for both, each phenomenon is difficult to explain on its own and even harder to explain when considered in tandem with the other.