Researchers discover new monster black hole 'practically in our back yard' uahuntsville AAS_Publishing
and other objects in their vicinity, no light can escape a black hole, so they can't be seen in the same way as visible stars.at the centers of galaxies, they can drive galaxy formation and evolution," Dr. Chakrabarti says.affect galactic dynamics in the Milky Way. If they are numerous, they may well affect the formation of our galaxy and its internal dynamics."
"The pull of the black hole on the visible sun-like star can be determined from these spectroscopic measurements, which give us a line-of-sight velocity due to a Doppler shift," says Dr. Chakrabarti. A Doppler shift is the change in frequency of a wave in relation to an observer, like how the pitch of a siren's sound changes as an emergency vehicle passes.
"The majority of black holes in binary systems are in X-ray binaries—in other words, they are bright in X-rays due to some interaction with the black hole, often due to the black hole devouring the other star," says Dr. Chakrabarti."As the stuff from the other star falls down this deep gravitational potential well, we can see X-rays."
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