Astronomy current events question: Tau Scorpii's magnetic field

Astronomy 210L, fall semester 2019
Cuesta College, San Luis Obispo, CA

Students are assigned to read online articles on current astronomy events, and take a short current events quiz during the first 10 minutes of lab. (This motivates students to show up promptly to lab, as the time cut-off for the quiz is strictly enforced!)
News release, "How Do the Strongest Magnets in the Universe Form?" (October 9, 2019)
The strong magnetic field of the blue straggler star Tau Scorpii may have originated from the merger of two stars, as indicated by:
(A) computer simulations.
(B) gravity wave detectors.
(C) images from telescopes.
(D) underground neutrino detectors.
(E) past reversals of Earth's magnetic poles.

Correct answer: (A)

Student responses
Sections 70178, 70186
(A) : 27 students
(B) : 8 students
(C) : 4 students
(D) : 0 students
(E) : 1 student

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