One of the best candidates for a black hole in a binary star system at the present time, based on the accuracy of measuring its mass, is:
A) V404 Cygni.
B) LMC X-3.
C) Cygnus X-1.
D) HDE 226868.
Correct Answer:
Verified
Q52: A black hole is believed to form:
A)when
Q53: All black hole candidates observed so far
Q54: As light moves outward from the vicinity
Q55: What is believed to be the mass
Q56: The mass of Cygnus X-1 is estimated
Q58: The x-ray source Cygnus X-1 is a
Q59: If an astronomical source of electromagnetic radiation
Q60: Which of the following would NOT be
Q61: A flickering signal is received from a
Q62: Gamma-ray bursters are:
A)ordinary Type Ic supernovae.
B)ordinary Type
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