cobalt-57


Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to cobalt-57: Cobalt-60, cobalt 58

cobalt-57

A radioactive isotope of cobalt with a half-life of 272 days.
References in periodicals archive ?
The extra brightness implied the existence of about three times more cobalt-57 in the remnant than theorized.
The flatter curve matches the slower decay of another isotope, cobalt-57, which the supernova produced in smaller amounts, the group notes.