Astronomy current events question: radioactive decay in supernova remnant 1987A

Astronomy 210L, fall semester 2012
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!)
Markus Bauer, Sergei Grebenev, and Christoph Winkler, "Radioactive Decay of Titanium Powers Supernova Remnant," October 18, 2012
The European Space Agency INTEGRAL (INTErnational Gamma-Ray Astrophysics Laboratory) spacecraft has observed high energy x-rays given off by __________ produced in a type II supernova explosion in 1987.
(A) radioactive heavy elements.
(B) a black hole.
(C) neutron star pulsar beams.
(D) a white dwarf.
(E) dark energy.

Correct answer: (A)

Student responses
Sections 70178, 70186, 70200
(A) : 22 students
(B) : 9 students
(C) : 2 students
(D) : 0 students
(E) : 2 students

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